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motor</title> <meta name="description" content="Search results for: traction motor"> <meta name="keywords" content="traction motor"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="traction motor"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1081</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: traction motor</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">961</span> Current-Based Multiple Faults Detection in Electrical Motors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moftah%20BinHasan">Moftah BinHasan </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Induction motors (IM) are vital components in industrial processes whose failure may yield to an unexpected interruption at the industrial plant, with highly incurred consequences in costs, product quality, and safety. Among different detection approaches proposed in the literature, that based on stator current monitoring termed as Motor Current Signature Analysis (MCSA) is the most preferred. MCSA is advantageous due to its non-invasive properties. The popularity of motor current signature analysis comes from being that the current consists of motor harmonics, around the supply frequency, which show some properties related to different situations of healthy and faulty conditions. One of the techniques used with machine line current resorts to spectrum analysis. Besides discussing the fundamentals of MCSA and its applications in the condition monitoring arena, this paper shows a summary of the most frequent faults and their consequence signatures on the stator current spectrum of an induction motor. In addition, this article presents different case studies of induction motor fault diagnosis. These faults were seeded in the machine which was run for more than an hour for each test before the results were recorded for the faulty situations. These results are then compared with those for the healthy cases that were recorded earlier. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=induction%20motor" title="induction motor">induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=condition%20monitoring" title=" condition monitoring"> condition monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=fault%20diagnosis" title=" fault diagnosis"> fault diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=MCSA" title=" MCSA"> MCSA</a>, <a href="https://publications.waset.org/abstracts/search?q=rotor" title=" rotor"> rotor</a>, <a href="https://publications.waset.org/abstracts/search?q=stator" title=" stator"> stator</a>, <a href="https://publications.waset.org/abstracts/search?q=bearing" title=" bearing"> bearing</a>, <a href="https://publications.waset.org/abstracts/search?q=eccentricity" title=" eccentricity"> eccentricity</a> </p> <a href="https://publications.waset.org/abstracts/24001/current-based-multiple-faults-detection-in-electrical-motors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24001.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">459</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">960</span> Low-Voltage Multiphase Brushless DC Motor for Electric Vehicle Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mengesha%20Mamo%20Wogari">Mengesha Mamo Wogari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, low voltage multiphase brushless DC motor with square wave air-gap flux distribution for electric vehicle application is proposed. Ten-phase, 5 kW motor, has been designed and simulated by finite element methods demonstrating the desired high torque capability at low speed and flux weakening operation for high-speed operations. The motor torque is proportional to number of phases for a constant phase current and air-gap flux. The concept of vector control and simple space vector modulation technique is used on MATLAB to control the motor demonstrating simple switching pattern for selected number of phases. The low voltage DC and inverter output AC are desired characteristics to avoid any electric shock in the vehicle, accidentally and during abnormal conditions. The switching devices for inverter are of low-voltage rating and cost effective though their number is equal to twice the number of phases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brushless%20DC%20motors" title="brushless DC motors">brushless DC motors</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20Vehicle" title=" electric Vehicle"> electric Vehicle</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20methods" title=" finite element methods"> finite element methods</a>, <a href="https://publications.waset.org/abstracts/search?q=Low-voltage%20inverter" title=" Low-voltage inverter"> Low-voltage inverter</a>, <a href="https://publications.waset.org/abstracts/search?q=multiphase" title=" multiphase"> multiphase</a> </p> <a href="https://publications.waset.org/abstracts/106746/low-voltage-multiphase-brushless-dc-motor-for-electric-vehicle-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106746.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">154</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">959</span> Analysis of the Result for the Accelerated Life Cycle Test of the Motor for Washing Machine by Using Acceleration Factor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Youn-Sung%20Kim">Youn-Sung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin-Ho%20Jo"> Jin-Ho Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Mi-Sung%20Kim"> Mi-Sung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Kun%20Lee"> Jae-Kun Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Accelerated life cycle test is applied to various products or components in order to reduce the time of life cycle test in industry. It must be considered for many test conditions according to the product characteristics for the test and the selection of acceleration parameter is especially very important. We have carried out the general life cycle test and the accelerated life cycle test by applying the acceleration factor (AF) considering the characteristics of brushless DC (BLDC) motor for washing machine. The final purpose of this study is to verify the validity by analyzing the results of the general life cycle test and the accelerated life cycle test. It will make it possible to reduce the life test time through the reasonable accelerated life cycle test. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=accelerated%20life%20cycle%20test" title="accelerated life cycle test">accelerated life cycle test</a>, <a href="https://publications.waset.org/abstracts/search?q=reliability%20test" title=" reliability test"> reliability test</a>, <a href="https://publications.waset.org/abstracts/search?q=motor%20for%20washing%20machine" title=" motor for washing machine"> motor for washing machine</a>, <a href="https://publications.waset.org/abstracts/search?q=brushless%20dc%20motor%20test" title=" brushless dc motor test"> brushless dc motor test</a> </p> <a href="https://publications.waset.org/abstracts/68978/analysis-of-the-result-for-the-accelerated-life-cycle-test-of-the-motor-for-washing-machine-by-using-acceleration-factor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68978.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">611</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">958</span> Return on Investment of a VFD Drive for Centrifugal Pump</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benhaddadi%20M.">Benhaddadi M.</a>, <a href="https://publications.waset.org/abstracts/search?q=D%C3%A9ry%20D."> Déry D.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electric motors are the single biggest consumer of electricity, and the consumption will have more than to double by 2050. Meanwhile, the existing technologies offer the potential to reduce the motor energy demand by up to 30 %, whereas the know-how to realise energy savings is not extensively applied. That is why the authors first conducted a detailed analysis of the regulation of the electric motor market in North America To illustrate the colossal energy savings potential permitted by the VFD, the authors have equipped experimental setup, based on centrifugal pump, simultaneously equipped with regulating throttle valves and variable frequency drive VFD. The obtained experimental results for 1.5 HP motor pump are extended to another motor powers, as centrifugal pumps that are different in power may have similar operational characteristics if they are located in a similar kind of process, permitting the simulations for 5 HP and 100 HP motors. According to the obtained results, VFDs tend to be most cost-effective when fitted to larger motor pumps, in addition to higher duty cycle of the motor and relative time operating at lower than full load. The energy saving permitted by the VFD use is huge, and the payback period for drive investment is short. Nonetheless, it’s important to highlight that there is no general rule of thumb that can be used to obtain the impact of the relative time operating at lower than full load. Indeed, in terms of energy-saving differences, 50 % flow regulation is tremendously better than 75 % regulation, but a slightly enhanced relative to 25 %. Two main distinct reasons can explain this somewhat not anticipated results: the characteristics of the process and the drop in efficiency when motor is operating at low speed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=motor" title="motor">motor</a>, <a href="https://publications.waset.org/abstracts/search?q=drive" title=" drive"> drive</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=centrifugal%20pump" title=" centrifugal pump"> centrifugal pump</a> </p> <a href="https://publications.waset.org/abstracts/166526/return-on-investment-of-a-vfd-drive-for-centrifugal-pump" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166526.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">73</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">957</span> A Passive Reaction Force Compensation for a Linear Motor Motion Stage Using Pre-Compressed Springs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kim%20Duc%20Hoang">Kim Duc Hoang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeong%20Joon%20Ahn"> Hyeong Joon Ahn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Residual vibration of the system base due to a high-acceleration motion of a stage may reduce life and productivity of the manufacturing device. Although a passive RFC can reduce vibration of the system base, spring or dummy mass should be replaced to tune performance of the RFC. In this paper, we develop a novel concept of the passive RFC mechanism for a linear motor motion stage using pre-compressed springs. Dynamic characteristic of the passive RFC can be adjusted by pre-compression of the spring without exchanging the spring or dummy mass. First, we build a linear motor motion stage with pre-compressed springs. Then, the effect of the pre-compressed spring on the passive RFC is investigated by changing both pre-compressions and stiffness of springs. Finally, the effectiveness of the passive RFC using pre-compressed springs was verified with both simulations and experiments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=linear%20motor%20motion%20stage" title="linear motor motion stage">linear motor motion stage</a>, <a href="https://publications.waset.org/abstracts/search?q=residual%20vibration" title=" residual vibration"> residual vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=passive%20RFC" title=" passive RFC"> passive RFC</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-compressed%20spring" title=" pre-compressed spring"> pre-compressed spring</a> </p> <a href="https://publications.waset.org/abstracts/63341/a-passive-reaction-force-compensation-for-a-linear-motor-motion-stage-using-pre-compressed-springs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63341.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">354</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">956</span> Application of the DTC Control in the Photovoltaic Pumping System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20N.%20Amrani">M. N. Amrani</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Abanou"> H. Abanou</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Dib"> A. Dib</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we proposed a strategy for optimizing the performance for a pumping structure constituted by an induction motor coupled to a centrifugal pump and improving existing results in this context. The considered system is supplied by a photovoltaic generator (GPV) through two static converters piloted in an independent manner. We opted for a maximum power point tracking (MPPT) control method based on the Neuro - Fuzzy, which is well known for its stability and robustness. To improve the induction motor performance, we use the concept of Direct Torque Control (DTC) and PID controller for motor speed to pilot the working of the induction motor. Simulations of the proposed approach give interesting results compared to the existing control strategies in this field. The model of the proposed system is simulated by MATLAB/Simulink. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20energy" title="solar energy">solar energy</a>, <a href="https://publications.waset.org/abstracts/search?q=pumping%20photovoltaic%20system" title=" pumping photovoltaic system"> pumping photovoltaic system</a>, <a href="https://publications.waset.org/abstracts/search?q=maximum%20power%20point%20tracking" title=" maximum power point tracking"> maximum power point tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20torque%20Control%20%28DTC%29" title=" direct torque Control (DTC)"> direct torque Control (DTC)</a>, <a href="https://publications.waset.org/abstracts/search?q=PID%20regulator" title=" PID regulator"> PID regulator</a> </p> <a href="https://publications.waset.org/abstracts/19070/application-of-the-dtc-control-in-the-photovoltaic-pumping-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19070.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">548</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">955</span> A Study on the Application of Accelerated Life Test to Electric Motor for Machine Tools</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Youn-Hwan%20Kim">Youn-Hwan Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Won%20Moon"> Jae-Won Moon</a>, <a href="https://publications.waset.org/abstracts/search?q=Hae-Joong%20Kim"> Hae-Joong Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper introduces the results of the study on the development of accelerated life test methods for the motor used in machine tools. In recent years, as well as efficiency for motors, there is a growing need for research on life expectancy of motors. It is considered impossible to calculate the acceleration coefficient by increasing the rotational load or temperature load as the acceleration stress in the motor system because the temperature of the copper exceeds the wire thermal class rating. This paper describes the equipment development procedure for the highly accelerated life test (HALT) of the 12kW three-phase squirrel-cage induction motors (SCIMs). After the test, the lifetime analysis was carried out, and it is compared with the life expectancy by finite element method (FEM) and bearing theory. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acceleration%20coefficient" title="acceleration coefficient">acceleration coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=bearing" title=" bearing"> bearing</a>, <a href="https://publications.waset.org/abstracts/search?q=HALT" title=" HALT"> HALT</a>, <a href="https://publications.waset.org/abstracts/search?q=life%20expectancy" title=" life expectancy"> life expectancy</a>, <a href="https://publications.waset.org/abstracts/search?q=motor" title=" motor"> motor</a> </p> <a href="https://publications.waset.org/abstracts/74720/a-study-on-the-application-of-accelerated-life-test-to-electric-motor-for-machine-tools" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74720.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">954</span> Identification of the Parameters of a AC Servomotor Using Genetic Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20G.%20Batista">J. G. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20N.%20Sousa"> K. N. Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=%C2%ACJ.%20L.%20Nunes"> ¬J. L. Nunes</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20L.%20S.%20Sousa"> R. L. S. Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20A.%20P.%20Th%C3%A9"> G. A. P. Thé</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work deals with parameter identification of permanent magnet motors, a class of ac motor which is particularly important in industrial automation due to characteristics like applications high performance, are very attractive for applications with limited space and reducing the need to eliminate because they have reduced size and volume and can operate in a wide speed range, without independent ventilation. By using experimental data and genetic algorithm we have been able to extract values for both the motor inductance and the electromechanical coupling constant, which are then compared to measured and/or expected values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modeling" title="modeling">modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=AC%20servomotor" title=" AC servomotor"> AC servomotor</a>, <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20synchronous%20motor-PMSM" title=" permanent magnet synchronous motor-PMSM"> permanent magnet synchronous motor-PMSM</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=vector%20control" title=" vector control"> vector control</a>, <a href="https://publications.waset.org/abstracts/search?q=robotic%20manipulator" title=" robotic manipulator"> robotic manipulator</a>, <a href="https://publications.waset.org/abstracts/search?q=control" title=" control"> control</a> </p> <a href="https://publications.waset.org/abstracts/8166/identification-of-the-parameters-of-a-ac-servomotor-using-genetic-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8166.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">470</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">953</span> Optimal Harmonic Filters Design of Taiwan High Speed Rail Traction System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ying-Pin%20Chang">Ying-Pin Chang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a method for combining a particle swarm optimization with nonlinear time-varying evolution and orthogonal arrays (PSO-NTVEOA) in the planning of harmonic filters for the high speed railway traction system with specially connected transformers in unbalanced three-phase power systems. The objective is to minimize the cost of the filter, the filters loss, the total harmonic distortion of currents and voltages at each bus simultaneously. An orthogonal array is first conducted to obtain the initial solution set. The set is then treated as the initial training sample. Next, the PSO-NTVEOA method parameters are determined by using matrix experiments with an orthogonal array, in which a minimal number of experiments would have an effect that approximates the full factorial experiments. This PSO-NTVEOA method is then applied to design optimal harmonic filters in Taiwan High Speed Rail (THSR) traction system, where both rectifiers and inverters with IGBT are used. From the results of the illustrative examples, the feasibility of the PSO-NTVEOA to design an optimal passive harmonic filter of THSR system is verified and the design approach can greatly reduce the harmonic distortion. Three design schemes are compared that V-V connection suppressing the 3rd order harmonic, and Scott and Le Blanc connection for the harmonic improvement is better than the V-V connection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=harmonic%20filters" title="harmonic filters">harmonic filters</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20swarm%20optimization" title=" particle swarm optimization"> particle swarm optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20time-varying%20evolution" title=" nonlinear time-varying evolution"> nonlinear time-varying evolution</a>, <a href="https://publications.waset.org/abstracts/search?q=orthogonal%20arrays" title=" orthogonal arrays"> orthogonal arrays</a>, <a href="https://publications.waset.org/abstracts/search?q=specially%20connected%20transformers" title=" specially connected transformers"> specially connected transformers</a> </p> <a href="https://publications.waset.org/abstracts/3435/optimal-harmonic-filters-design-of-taiwan-high-speed-rail-traction-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3435.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">392</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">952</span> Induction Motor Eccentricity Fault Recognition Using Rotor Slot Harmonic with Stator Current Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nouredine%20Benouzza">Nouredine Benouzza</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hamida%20Boudinar"> Ahmed Hamida Boudinar</a>, <a href="https://publications.waset.org/abstracts/search?q=Azeddine%20Bendiabdellah"> Azeddine Bendiabdellah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An algorithm for Eccentricity Fault Detection (EFD) applied to a squirrel cage induction machine is proposed in this paper. This algorithm employs the behavior of the stator current spectral analysis and the localization of the Rotor Slot Harmonic (RSH) frequency to detect eccentricity faults in three phase induction machine. The RHS frequency once obtained is used as a key parameter into a simple developed expression to directly compute the eccentricity fault frequencies in the induction machine. Experimental tests performed for both a healthy motor and a faulty motor with different eccentricity fault severities illustrate the effectiveness and merits of the proposed EFD algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=squirrel%20cage%20motor" title="squirrel cage motor">squirrel cage motor</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=eccentricity%20faults" title=" eccentricity faults"> eccentricity faults</a>, <a href="https://publications.waset.org/abstracts/search?q=current%20spectral%20analysis" title=" current spectral analysis"> current spectral analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=rotor%20slot%20harmonic" title=" rotor slot harmonic"> rotor slot harmonic</a> </p> <a href="https://publications.waset.org/abstracts/71112/induction-motor-eccentricity-fault-recognition-using-rotor-slot-harmonic-with-stator-current-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71112.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">487</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">951</span> Motor Controller Implementation Using Model Based Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cau%20Tran">Cau Tran</a>, <a href="https://publications.waset.org/abstracts/search?q=Tu%20Nguyen"> Tu Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Tien%20Pham"> Tien Pham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Model-based design (MBD) is a mathematical and visual technique for addressing design issues in the fields of communications, signal processing, and complicated control systems. It is utilized in several automotive, aerospace, industrial, and motion control applications. Virtual models are at the center of the software development process with model based design. A method used in the creation of embedded software is model-based design. In this study, the LAT motor is modeled in a simulation environment, and the LAT motor control is designed with a cascade structure, a speed and current control loop, and a controller that is used in the next part. A PID structure serves as this controller. Based on techniques and motor parameters that match the design goals, the PID controller is created for the model using traditional design principles. The MBD approach will be used to build embedded software for motor control. The paper will be divided into three distinct sections. The first section will introduce the design process and the benefits and drawbacks of the MBD technique. The design of control software for LAT motors will be the main topic of the next section. The experiment's results are the subject of the last section. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=model%20based%20design" title="model based design">model based design</a>, <a href="https://publications.waset.org/abstracts/search?q=limited%20angle%20torque" title=" limited angle torque"> limited angle torque</a>, <a href="https://publications.waset.org/abstracts/search?q=intellectual%20property%20core" title=" intellectual property core"> intellectual property core</a>, <a href="https://publications.waset.org/abstracts/search?q=hardware%20description%20language" title=" hardware description language"> hardware description language</a>, <a href="https://publications.waset.org/abstracts/search?q=controller%20area%20network" title=" controller area network"> controller area network</a>, <a href="https://publications.waset.org/abstracts/search?q=user%20datagram%20protocol" title=" user datagram protocol"> user datagram protocol</a> </p> <a href="https://publications.waset.org/abstracts/159211/motor-controller-implementation-using-model-based-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159211.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">94</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">950</span> Direct Torque Control of Induction Motor Employing Differential Evolution Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Vamsee%20Kiran">T. Vamsee Kiran</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Gopi"> A. Gopi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The undesired torque and flux ripple may occur in conventional direct torque control (DTC) induction motor drive. DTC can improve the system performance at low speeds by continuously tuning the regulator by adjusting the Kp, Ki values. In this differential evolution (DE) is proposed to adjust the parameters (Kp, Ki) of the speed controller in order to minimize torque ripple, flux ripple, and stator current distortion.The DE based PI controller has resulted is maintaining a constant speed of the motor irrespective of the load torque fluctuations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=differential%20evolution" title="differential evolution">differential evolution</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20torque%20control" title=" direct torque control"> direct torque control</a>, <a href="https://publications.waset.org/abstracts/search?q=PI%20controller" title=" PI controller"> PI controller</a> </p> <a href="https://publications.waset.org/abstracts/29123/direct-torque-control-of-induction-motor-employing-differential-evolution-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29123.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">432</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">949</span> On the Efficiency of a Double-Cone Gravitational Motor and Generator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Barenten%20Suciu">Barenten Suciu</a>, <a href="https://publications.waset.org/abstracts/search?q=Akio%20Miyamura"> Akio Miyamura</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, following the study-case of an inclined plane gravitational machine, efficiency of a double-cone gravitational motor and generator is evaluated. Two types of efficiency ratios, called <em>translational efficiency</em> and <em>rotational efficiency</em>, are defined relative to the intended duty of the gravitational machine, which can be either the production of translational kinetic energy, or rotational kinetic energy. One proved that, for pure rolling movement of the double- cone, in the absence of rolling friction, the total mechanical energy is conserved. In such circumstances, as the motion of the double-cone progresses along rails, the translational efficiency decreases and the rotational efficiency increases, in such way that sum of the rotational and translational efficiencies remains unchanged and equal to 1. Results obtained allow a comparison of the gravitational machine with other types of motor-generators, in terms of the achievable efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=efficiency" title="efficiency">efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=friction" title=" friction"> friction</a>, <a href="https://publications.waset.org/abstracts/search?q=gravitational%20motor%20and%20generator" title=" gravitational motor and generator"> gravitational motor and generator</a>, <a href="https://publications.waset.org/abstracts/search?q=rolling%20and%20sliding" title=" rolling and sliding"> rolling and sliding</a>, <a href="https://publications.waset.org/abstracts/search?q=truncated%20double-cone" title=" truncated double-cone"> truncated double-cone</a> </p> <a href="https://publications.waset.org/abstracts/80923/on-the-efficiency-of-a-double-cone-gravitational-motor-and-generator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80923.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">289</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">948</span> Speed Control of Brushless DC Motor Using PI Controller in MATLAB Simulink</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Do%20Chi%20Thanh">Do Chi Thanh</a>, <a href="https://publications.waset.org/abstracts/search?q=Dang%20Ngoc%20Huy"> Dang Ngoc Huy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, there are more and more variable speed drive systems in small-scale and large-scale applications such as the electric vehicle industry, household appliances, medical equipment, and other industrial fields led to the development of BLDC (Brushless DC) motors. BLDC drive has many advantages, such as higher efficiency, better speed torque characteristics, high power density, and low maintenance cost compared to other conventional motors. Most BLDC motors use a proportional-integral (PI) controller and a pulse width modulation (PWM) scheme for speed control. This article describes the simulation model of BLDC motor drive control with the help of MATLAB - SIMULINK simulation software. The built simulation model includes a BLDC motor dynamic block, Hall sensor signal generation block, inverter converter block, and PI controller. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brushless%20DC%20motor" title="brushless DC motor">brushless DC motor</a>, <a href="https://publications.waset.org/abstracts/search?q=BLDC" title=" BLDC"> BLDC</a>, <a href="https://publications.waset.org/abstracts/search?q=six-step%20inverter" title=" six-step inverter"> six-step inverter</a>, <a href="https://publications.waset.org/abstracts/search?q=PI%20speed" title=" PI speed"> PI speed</a> </p> <a href="https://publications.waset.org/abstracts/179369/speed-control-of-brushless-dc-motor-using-pi-controller-in-matlab-simulink" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179369.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">74</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">947</span> Fault Diagnosis of Squirrel-Cage Induction Motor by a Neural Network Multi-Models</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yahia.%20Kourd">Yahia. Kourd</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Guersi%20D.%20Lefebvre"> N. Guersi D. Lefebvre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we propose to study the faults diagnosis in squirrel-cage induction motor using MLP neural networks. We use neural healthy and faulty models of the behavior in order to detect and isolate some faults in machine. In the first part of this work, we have created a neural model for the healthy state using Matlab and a motor located in LGEB by acquirins data inputs and outputs of this engine. Then we detected the faults in the machine by residual generation. These residuals are not sufficient to isolate the existing faults. For this reason, we proposed additive neural networks to represent the faulty behaviors. From the analysis of these residuals and the choice of a threshold we propose a method capable of performing the detection and diagnosis of some faults in asynchronous machines with squirrel cage rotor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=faults%20diagnosis" title="faults diagnosis">faults diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-models" title=" multi-models"> multi-models</a>, <a href="https://publications.waset.org/abstracts/search?q=squirrel-cage%20induction%20motor" title=" squirrel-cage induction motor"> squirrel-cage induction motor</a> </p> <a href="https://publications.waset.org/abstracts/8200/fault-diagnosis-of-squirrel-cage-induction-motor-by-a-neural-network-multi-models" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8200.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">636</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">946</span> Summary of Technical Approaches to Improve Energy Efficiency in Electric Motor Drive Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manuel%20Valencia%20Alejaandro%20Paz">Manuel Valencia Alejaandro Paz</a>, <a href="https://publications.waset.org/abstracts/search?q=Luz%20Nidia%20Quintero%20Jairo%20Palacios"> Luz Nidia Quintero Jairo Palacios</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In present paper a set of technical approaches to improve the energy efficiency in processes controlled by electric motor drive systems EMDS are listed and analyzed. Energy saving becomes fundamental to improve the sustainability and competitiveness of organizations all around the world; increasing costs of electricity had impulse the use of different strategies to reduce the electric power condition. A summary of these techniques is presented and evaluated in the potential for energy saving policies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20saving" title="energy saving">energy saving</a>, <a href="https://publications.waset.org/abstracts/search?q=EMDS" title=" EMDS"> EMDS</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20motor" title=" induction motor"> induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20efficiency" title=" energy efficiency"> energy efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/57397/summary-of-technical-approaches-to-improve-energy-efficiency-in-electric-motor-drive-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57397.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">373</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">945</span> A609 Modeling of AC Servomotor Using Genetic Algorithm and Tests for Control of a Robotic Joint</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20G.%20Batista">J. G. Batista</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20S.%20Santiago"> T. S. Santiago</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20A.%20Ribeiro"> E. A. Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20A.%20P.%20Th%C3%A9"> G. A. P. Thé</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work deals with parameter identification of permanent magnet motors, a class of ac motor which is particularly important in industrial automation due to characteristics like applications high performance, are very attractive for applications with limited space and reducing the need to eliminate because they have reduced size and volume and can operate in a wide speed range, without independent ventilation. By using experimental data and genetic algorithm we have been able to extract values for both the motor inductance and the electromechanical coupling constant, which are then compared to measure and/or expected values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modeling" title="modeling">modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=AC%20servomotor" title=" AC servomotor"> AC servomotor</a>, <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20synchronous%20motor-PMSM" title=" permanent magnet synchronous motor-PMSM"> permanent magnet synchronous motor-PMSM</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=vector%20control" title=" vector control"> vector control</a>, <a href="https://publications.waset.org/abstracts/search?q=robotic%20manipulator" title=" robotic manipulator"> robotic manipulator</a>, <a href="https://publications.waset.org/abstracts/search?q=control" title=" control"> control</a> </p> <a href="https://publications.waset.org/abstracts/5466/a609-modeling-of-ac-servomotor-using-genetic-algorithm-and-tests-for-control-of-a-robotic-joint" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5466.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">520</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">944</span> A Strategy of Direct Power Control for PWM Rectifier Reducing Ripple in Instantaneous Power</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Mohammed%20Chikouche">T. Mohammed Chikouche</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Hartani"> K. Hartani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on the analysis of basic direct torque control, a parallel master slave for four in-wheel permanent magnet synchronous motors (PMSM) fed by two three phase inverters used in electric vehicle is proposed in this paper. A conventional system with multi-inverter and multi-machine comprises a three phase inverter for each machine to be controlled. Another approach consists in using only one three-phase inverter to supply several permanent magnet synchronous machines. A modified direct torque control (DTC) algorithm is used for the control of the bi-machine traction system. Simulation results show that the proposed control strategy is well adapted for the synchronism of this system and provide good speed tracking performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electric%20vehicle" title="electric vehicle">electric vehicle</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-machine%20single-inverter%20system" title=" multi-machine single-inverter system"> multi-machine single-inverter system</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-machine%20multi-inverter%20control" title=" multi-machine multi-inverter control"> multi-machine multi-inverter control</a>, <a href="https://publications.waset.org/abstracts/search?q=in-wheel%20motor" title=" in-wheel motor"> in-wheel motor</a>, <a href="https://publications.waset.org/abstracts/search?q=master-slave%20control" title=" master-slave control"> master-slave control</a> </p> <a href="https://publications.waset.org/abstracts/87696/a-strategy-of-direct-power-control-for-pwm-rectifier-reducing-ripple-in-instantaneous-power" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87696.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">221</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">943</span> Does Mirror Therapy Improve Motor Recovery After Stroke? A Meta-Analysis of Randomized Controlled Trials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Abo%20Salem">Hassan Abo Salem</a>, <a href="https://publications.waset.org/abstracts/search?q=Guo%20Feng"> Guo Feng</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaolin%20Huang"> Xiaolin Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study is to determine the effectiveness of mirror therapy on motor recovery and functional abilities after stroke. The following databases were searched from inception to May 2014: Cochrane Stroke, Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, CINAHL, AMED, PsycINFO, and PEDro. Two reviewers independently screened and selected all randomized controlled trials that evaluate the effect of mirror therapy in stroke rehabilitation.12 randomized controlled trials studies met the inclusion criteria; 10 studies utilized the effect of mirror therapy for the upper limb and 2 studies for the lower limb. Mirror therapy had a positive effect on motor recover and function; however, we found no consistent influence on activity of daily living, Spasticity and balance. This meta-analysis suggests that, Mirror therapy has additional effect on motor recovery but has a small positive effect on functional abilities after stroke. Further high-quality studies with greater statistical power are required in order to accurately determine the effectiveness of mirror therapy following stroke. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mirror%20therapy" title="mirror therapy">mirror therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=motor%20recovery" title=" motor recovery"> motor recovery</a>, <a href="https://publications.waset.org/abstracts/search?q=stroke" title=" stroke"> stroke</a>, <a href="https://publications.waset.org/abstracts/search?q=balance" title=" balance"> balance</a> </p> <a href="https://publications.waset.org/abstracts/25110/does-mirror-therapy-improve-motor-recovery-after-stroke-a-meta-analysis-of-randomized-controlled-trials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25110.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">552</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">942</span> Concentrated Winding Permanent Magnet Axial Flux Motor with Soft Magnetic Composite Core </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Aliyu">N. Aliyu</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Atkinson"> G. Atkinson</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Stannard"> N. Stannard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Compacted insulated iron powder is a key material in high volume electric motors manufacturing. It offers high production rates, dimensionally stable components, and low scrap volumes. It is the aim of this paper to develop a three-phase compact single sided concentrated winding axial flux PM motor with soft magnetic composite (SMC) core for reducing core losses and cost. To succeed the motor would need to be designed in such a way as to exploit the isotropic magnetic properties of the material and open slot constructions with surface mounted PM for higher speed up to 6000 rpm, without excessive rotor losses. Higher fill factor up to 70% was achieved by compacting the coils, which offered a significant improvement in performance. A finite-element analysis was performed for accurate parameters calculation and the simulation results are thoroughly presented and agree with the theoretical calculations very well. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SMC%20core" title="SMC core">SMC core</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20gap%20motor" title=" axial gap motor"> axial gap motor</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20efficiency" title=" high efficiency"> high efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=torque" title=" torque"> torque</a> </p> <a href="https://publications.waset.org/abstracts/78902/concentrated-winding-permanent-magnet-axial-flux-motor-with-soft-magnetic-composite-core" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78902.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">338</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">941</span> The Impact of Motor Predispositions of Pilot-Cadets on Results in Aviation Synthetic Efficiency Test</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zbigniew%20Wochynski">Zbigniew Wochynski</a>, <a href="https://publications.waset.org/abstracts/search?q=Justyna%20Skrzynska"> Justyna Skrzynska</a>, <a href="https://publications.waset.org/abstracts/search?q=Robert%20Jedrys"> Robert Jedrys</a>, <a href="https://publications.waset.org/abstracts/search?q=Zdzislaw%20Kobos"> Zdzislaw Kobos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study is to determine the types of motor skills and their impact on achieving results while undergoing Aviation Synthetic Efficiency Test (ASET). The study involved 59 cadets, 21 years-old on average, who are studying on first year for a pilot. The average weight of the respondents is 73.8 kg. The subjects were divided into two groups by weight: up to 73.8 kg -group A (n-30) and above 73,8kg -group B (n-29). All subjects underwent the following tests: running at 40m, 100m, 1000m, 2000m, pull-ups, ASET. In both groups, the cadets were divided into two motor skills types taking into advance 40 m running, pull-ups, 2000 meters running and then subjected to do ASET. There has been shown statistically significant increase in group B in body height, weight and BMI with p <0.0003, p <0.0001, p <0.0001 compared to group A. The results indicate that the dominant motor type in all subjects is the endurance-strength model, which reached the speed V = 1,42m/s in overcoming ASET. This is confirmed by the correlation between 2000m and pull-ups r = 0.37 (p <0.05). In group A, the results indicate that the dominant type of motor is a high-speed-endurance model (26.6%), which reached speed V = 1,42m/s in overcoming ASET. In Group B, there was type of motor speed-strength (20.6%), which reached speed of V = 1.45m/s in overcoming ASET. This confirms the correlation between ASET and pull-ups r = 0.56 (p <0.005). Examined cadets who were having one dominant characteristic achieved worse results is ASET. The best results from all examined cadets in overcoming ASET had the type of motor endurance-strength, in group A endurance-speed model and in group B type of speed-strength <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ASET" title="ASET">ASET</a>, <a href="https://publications.waset.org/abstracts/search?q=Aviation%20Synthetic%20Efficiency%20Test" title=" Aviation Synthetic Efficiency Test"> Aviation Synthetic Efficiency Test</a>, <a href="https://publications.waset.org/abstracts/search?q=motor%20skills" title=" motor skills"> motor skills</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20tests" title=" physical tests"> physical tests</a>, <a href="https://publications.waset.org/abstracts/search?q=pilot-cadets" title=" pilot-cadets"> pilot-cadets</a> </p> <a href="https://publications.waset.org/abstracts/54307/the-impact-of-motor-predispositions-of-pilot-cadets-on-results-in-aviation-synthetic-efficiency-test" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54307.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">940</span> Design of 3-Step Skew BLAC Motor for Better Performance in Electric Power Steering System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Subrato%20Saha">Subrato Saha</a>, <a href="https://publications.waset.org/abstracts/search?q=Yun-Hyun%20Cho"> Yun-Hyun Cho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In electric power steering (EPS), spoke type brushless ac (BLAC) motors offer distinct advantages over other electric motor types in terms torque smoothness, reliability and efficiency. This paper deals with the shape optimization of spoke type BLAC motor, in order to reduce cogging torque. This paper examines 3 steps skewing rotor angle, optimizing rotor core edge and rotor overlap length for reducing cogging torque in spoke type BLAC motor. The methods were applied to existing machine designs and their performance was calculated using finite- element analysis (FEA). Prototypes of the machine designs were constructed and experimental results obtained. It is shown that the FEA predicted the cogging torque to be nearly reduce using those methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EPS" title="EPS">EPS</a>, <a href="https://publications.waset.org/abstracts/search?q=3-Step%20skewing" title=" 3-Step skewing"> 3-Step skewing</a>, <a href="https://publications.waset.org/abstracts/search?q=spoke%20type%20BLAC" title=" spoke type BLAC"> spoke type BLAC</a>, <a href="https://publications.waset.org/abstracts/search?q=cogging%20torque" title=" cogging torque"> cogging torque</a>, <a href="https://publications.waset.org/abstracts/search?q=FEA" title=" FEA"> FEA</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/30582/design-of-3-step-skew-blac-motor-for-better-performance-in-electric-power-steering-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30582.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">490</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">939</span> Investigating the Effect of Executive Functions on Young Children’s Drawing of Familiar and Unfamiliar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reshaa%20Alruwaili">Reshaa Alruwaili</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was inspired by previous studies with young children that found (a) that they need both inhibitory control and working memory when drawing an unfamiliar subject (e.g., animals) by adapting their schema of the human ﬁgure and (b) that when drawing something familiar (e.g., a person) they use inhibitory control mediated through fine motor control to execute their drawing. This study, therefore, systematically investigated whether direct effects for both working memory and inhibitory control and/or effects mediated through fine motor control existed when drawing both familiar and unfamiliar subjects. Participants were 95 children (41-66 months old) required to draw both a man and a dog, scored respectively for how representational they were and for differences from a human ﬁgure. Regression and mediation analyses showed that inhibitory control alone predicted drawing a recognizable man while working memory alone predicted drawing a dog that was not human-like when fine motor control, age, and gender were controlled. Contrasting with some previous studies, these results suggest that the roles of working memory and inhibitory control are sensitive to the familiarity of the drawing task and are not necessarily mediated through fine motor control. Implications for research on drawing development are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=child%20drawing" title="child drawing">child drawing</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibitory%20control" title=" inhibitory control"> inhibitory control</a>, <a href="https://publications.waset.org/abstracts/search?q=working%20memory" title=" working memory"> working memory</a>, <a href="https://publications.waset.org/abstracts/search?q=fine%20motor%20control" title=" fine motor control"> fine motor control</a>, <a href="https://publications.waset.org/abstracts/search?q=mediation" title=" mediation"> mediation</a>, <a href="https://publications.waset.org/abstracts/search?q=familiar%20and%20unfamiliar%20subjects" title=" familiar and unfamiliar subjects"> familiar and unfamiliar subjects</a> </p> <a href="https://publications.waset.org/abstracts/145793/investigating-the-effect-of-executive-functions-on-young-childrens-drawing-of-familiar-and-unfamiliar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145793.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">77</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">938</span> Material Failure Process Simulation by Improved Finite Elements with Embedded Discontinuities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gelacio%20Ju%C3%A1rez-Luna">Gelacio Juárez-Luna</a>, <a href="https://publications.waset.org/abstracts/search?q=Gustavo%20Ayala"> Gustavo Ayala</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaime%20Retama-Velasco"> Jaime Retama-Velasco</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper shows the advantages of the material failure process simulation by improve finite elements with embedded discontinuities, using a new definition of traction vector, dependent on the discontinuity length and the angle. Particularly, two families of this kind of elements are compared: kinematically optimal symmetric and statically and kinematically optimal non-symmetric. The constitutive model to describe the behavior of the material in the symmetric formulation is a traction-displacement jump relationship equipped with softening after reaching the failure surface. To show the validity of this symmetric formulation, representative numerical examples illustrating the performance of the proposed formulation are presented. It is shown that the non-symmetric family may over or underestimate the energy required to create a discontinuity, as this effect is related with the total length of the discontinuity, fact that is not noticed when the discontinuity path is a straight line. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=variational%20formulation" title="variational formulation">variational formulation</a>, <a href="https://publications.waset.org/abstracts/search?q=strong%20discontinuity" title=" strong discontinuity"> strong discontinuity</a>, <a href="https://publications.waset.org/abstracts/search?q=embedded%20discontinuities" title=" embedded discontinuities"> embedded discontinuities</a>, <a href="https://publications.waset.org/abstracts/search?q=strain%20localization" title=" strain localization "> strain localization </a> </p> <a href="https://publications.waset.org/abstracts/7919/material-failure-process-simulation-by-improved-finite-elements-with-embedded-discontinuities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7919.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">781</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">937</span> Analysis of a Single Motor Finger Mechanism for a Prosthetic Hand</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shaukat%20Ali">Shaukat Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Kanber%20Sedef"> Kanber Sedef</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Yilmaz"> Mustafa Yilmaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work analyzes a finger mechanism for a prosthetic hand that will help in improving the living standards of people who have lost their hands for a variety of reasons. The finger mechanism is single degree of freedom and hence has advantages such as compact size, reduced mass and less energy consumption. The proposed finger mechanism is a six bar linkage actuated by a single motor. The kinematic, static and dynamic analyses have been done by using the conventional methods of mechanism analysis. The kinematic results present the motion of the proposed finger mechanism and location of the fingertip. The static and dynamic analyses provide the useful information about the gripping force at the fingertip for various configurations and the selection of motor that will move the finger over its range of configuration. This single motor finger mechanism is simple and resembles the human finger’s motion suitable for grasping operation. This study can be used in the optimization of geometrical parameters of the proposed mechanism to obtain the desired configurations with minimum torque and enhanced griping. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dynamics" title="dynamics">dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=finger%20mechanism" title=" finger mechanism"> finger mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=grasping" title=" grasping"> grasping</a>, <a href="https://publications.waset.org/abstracts/search?q=kinematics" title=" kinematics"> kinematics</a> </p> <a href="https://publications.waset.org/abstracts/49855/analysis-of-a-single-motor-finger-mechanism-for-a-prosthetic-hand" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49855.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">358</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">936</span> Emulation of a Wind Turbine Using Induction Motor Driven by Field Oriented Control</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Benaaouinate">L. Benaaouinate</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Khafallah"> M. Khafallah</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Martinez"> A. Martinez</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mesbahi"> A. Mesbahi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Bouragba"> T. Bouragba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper concerns with the modeling, simulation, and emulation of a wind turbine emulator for standalone wind energy conversion systems. By using emulation system, we aim to reproduce the dynamic behavior of the wind turbine torque on the generator shaft: it provides the testing facilities to optimize generator control strategies in a controlled environment, without reliance on natural resources. The aerodynamic, mechanical, electrical models have been detailed as well as the control of pitch angle using Fuzzy Logic for horizontal axis wind turbines. The wind turbine emulator consists mainly of an induction motor with AC power drive with torque control. The control of the induction motor and the mathematical models of the wind turbine are designed with MATLAB/Simulink environment. The simulation results confirm the effectiveness of the induction motor control system and the functionality of the wind turbine emulator for providing all necessary parameters of the wind turbine system such as wind speed, output torque, power coefficient and tip speed ratio. The findings are of direct practical relevance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrical%20generator" title="electrical generator">electrical generator</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20motor%20drive" title=" induction motor drive"> induction motor drive</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling"> modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=pitch%20angle%20control" title=" pitch angle control"> pitch angle control</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20time%20control" title=" real time control"> real time control</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20turbine" title=" wind turbine"> wind turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20turbine%20emulator" title=" wind turbine emulator"> wind turbine emulator</a> </p> <a href="https://publications.waset.org/abstracts/80827/emulation-of-a-wind-turbine-using-induction-motor-driven-by-field-oriented-control" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80827.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">234</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">935</span> Ulnar Nerve Changes Associated with Carpal Tunnel Syndrome and Effect on Median Ersus Ulnar Comparative Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20K.%20Aziz%20Saba">Emmanuel K. Aziz Saba</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarah%20S.%20El-Tawab"> Sarah S. El-Tawab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objectives: Carpal tunnel syndrome (CTS) was found to be associated with high pressure within the Guyon’s canal. The aim of this study was to assess the involvement of sensory and/or motor ulnar nerve fibers in patients with CTS and whether this affects the accuracy of the median versus ulnar sensory and motor comparative tests. Patients and methods: The present study included 145 CTS hands and 71 asymptomatic control hands. Clinical examination was done for all patients. The following tests were done for the patients and control: (1) Sensory conduction studies: median nerve, ulnar nerve, dorsal ulnar cutaneous nerve and median versus ulnar digit (D) four sensory comparative study; (2) Motor conduction studies: median nerve, ulnar nerve and median versus ulnar motor comparative study. Results: There were no statistically significant differences between patients and control group as regards parameters of ulnar motor study and dorsal ulnar cutaneous sensory conduction study. It was found that 17 CTS hands (11.7%) had ulnar sensory abnormalities in 17 different patients. The median versus ulnar sensory and motor comparative studies were abnormal among all these 17 CTS hands. There were statistically significant negative correlations between median motor latency and both ulnar sensory amplitudes recording D5 and D4. There were statistically significant positive correlations between median sensory conduction velocity and both ulnar sensory nerve action potential amplitude recording D5 and D4. Conclusions: There is ulnar sensory nerve abnormality among CTS patients. This abnormality affects the amplitude of ulnar sensory nerve action potential. The presence of abnormalities in ulnar nerve occurs in moderate and severe degrees of CTS. This does not affect the median versus ulnar sensory and motor comparative tests accuracy and validity for use in electrophysiological diagnosis of CTS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carpal%20tunnel%20syndrome" title="carpal tunnel syndrome">carpal tunnel syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=ulnar%20nerve" title=" ulnar nerve"> ulnar nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=median%20nerve" title=" median nerve"> median nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=median%20versus%20ulnar%20comparative%20study" title=" median versus ulnar comparative study"> median versus ulnar comparative study</a>, <a href="https://publications.waset.org/abstracts/search?q=dorsal%20ulnar%20cutaneous%20nerve" title=" dorsal ulnar cutaneous nerve"> dorsal ulnar cutaneous nerve</a> </p> <a href="https://publications.waset.org/abstracts/19196/ulnar-nerve-changes-associated-with-carpal-tunnel-syndrome-and-effect-on-median-ersus-ulnar-comparative-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19196.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">567</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">934</span> H-Infinity and RST Position Controllers of Rotary Traveling Wave Ultrasonic Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Brahim">M. Brahim</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Bahri"> I. Bahri</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Bernard"> Y. Bernard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traveling Wave Ultrasonic Motor (TWUM) is a compact, precise, and silent actuator generating high torque at low speed without gears. Moreover, the TWUM has a high holding torque without supply, which makes this motor as an attractive solution for holding position of robotic arms. However, their nonlinear dynamics, and the presence of load-dependent dead zones often limit their use. Those issues can be overcome in closed loop with effective and precise controllers. In this paper, robust H-infinity (H∞) and discrete time RST position controllers are presented. The H∞ controller is designed in continuous time with additional weighting filters to ensure the robustness in the case of uncertain motor model and external disturbances. Robust RST controller based on the pole placement method is also designed and compared to the H∞. Simulink model of TWUM is used to validate the stability and the robustness of the two proposed controllers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=piezoelectric%20motors" title="piezoelectric motors">piezoelectric motors</a>, <a href="https://publications.waset.org/abstracts/search?q=position%20control" title=" position control"> position control</a>, <a href="https://publications.waset.org/abstracts/search?q=H%E2%88%9E" title=" H∞"> H∞</a>, <a href="https://publications.waset.org/abstracts/search?q=RST" title=" RST"> RST</a>, <a href="https://publications.waset.org/abstracts/search?q=stability%20criteria" title=" stability criteria"> stability criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=robustness" title=" robustness"> robustness</a> </p> <a href="https://publications.waset.org/abstracts/55691/h-infinity-and-rst-position-controllers-of-rotary-traveling-wave-ultrasonic-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55691.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">244</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">933</span> Speed Control of Hybrid Stepper Motor by Using Adaptive Neuro-Fuzzy Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Talha%20Ali%20Khan">Talha Ali Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an adaptive neuro-fuzzy interference system (ANFIS), which is applied to a hybrid stepper motor (HSM) to regulate its speed. The dynamic response of the HSM with the ANFIS controller is studied during the starting process and under different load disturbance. The effectiveness of the proposed controller is compared with that of the conventional PI controller. The proposed method solves the problem of nonlinearities and load changes of the HSM drives. The proposed controller ensures fast and precise dynamic response with an excellent steady state performance. Matlab/Simulink program is used for this dynamic simulation study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stepper%20motor" title="stepper motor">stepper motor</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid" title=" hybrid"> hybrid</a>, <a href="https://publications.waset.org/abstracts/search?q=ANFIS" title=" ANFIS"> ANFIS</a>, <a href="https://publications.waset.org/abstracts/search?q=speed%20control" title=" speed control"> speed control</a> </p> <a href="https://publications.waset.org/abstracts/15484/speed-control-of-hybrid-stepper-motor-by-using-adaptive-neuro-fuzzy-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15484.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">551</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">932</span> A Meta-Analysis of Handwriting and Visual-Motor Integration (VMI): The Moderating Effect of Handwriting Dimensions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hong%20Lu">Hong Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Xin%20Chen"> Xin Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhengcheng%20Fan"> Zhengcheng Fan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Prior research has claimed a close association between handwriting and mathematics attainment with the help of spatial cognition. However, the exact mechanism behind this relationship remains un-investigated. Focusing on visual-motor integration (VMI), one critical spatial skill, this meta-analysis aims to estimate the size of the handwriting- visual-motor integration relationship and examine the moderating effect of handwriting dimensions on the link. With a random effect model, a medium relation (r=.26, 95%CI [.22, .30]) between handwriting and VMI was summarized in 38 studies with 55 unique samples and 141 effect sizes. Findings suggested handwriting dimensions significantly moderated the handwriting- VMI relationship, with handwriting legibility showing a substantial correlation with VMI, but neither handwriting speed nor pressure. Identifying the essential relationship between handwriting legibility and VMI, this study adds to the literature about the key cognitive processing needs underlying handwriting, and spatial cognition thus highlights the cognitive mechanism regarding handwriting, spatial cognition, and mathematics performances. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=handwriting" title="handwriting">handwriting</a>, <a href="https://publications.waset.org/abstracts/search?q=visual-motor%20integration" title=" visual-motor integration"> visual-motor integration</a>, <a href="https://publications.waset.org/abstracts/search?q=legibility" title=" legibility"> legibility</a>, <a href="https://publications.waset.org/abstracts/search?q=meta-analysis" title=" meta-analysis"> meta-analysis</a> </p> <a href="https://publications.waset.org/abstracts/150140/a-meta-analysis-of-handwriting-and-visual-motor-integration-vmi-the-moderating-effect-of-handwriting-dimensions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150140.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">109</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=traction%20motor&page=4" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=traction%20motor&page=1">1</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=traction%20motor&page=2">2</a></li> <li class="page-item"><a class="page-link" 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