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current</title> <meta name="description" content="Search results for: stator current"> <meta name="keywords" content="stator current"> <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="stator current"> <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> 9049</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: stator current</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9049</span> BLDC Motor Design Considering Core Loss Caused by Welding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyun-Seok%20Hong">Hyun-Seok Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=In-Gun%20Kim"> In-Gun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ye-Jun%20Oh"> Ye-Jun Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Lee"> Ju Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper deals with the effects of welding performed for the manufacture of laminations in a stator in the case of prototype motors that are manufactured in small quantity. As a result of performing the no-load test for an IPM (interior permanent magnet)-type BLDC (blushless direct current) motor manufactured by welding both inside and outside of the stator, it was found that more DC input than expected was provided. To verify the effects of welding, a stator was re-manufactured by bonding, and DC inputs provided during the no-load test were compared. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=welding" title="welding">welding</a>, <a href="https://publications.waset.org/abstracts/search?q=stator" title=" stator"> stator</a>, <a href="https://publications.waset.org/abstracts/search?q=Eddy%20current" title=" Eddy current"> Eddy current</a>, <a href="https://publications.waset.org/abstracts/search?q=BLDC" title=" BLDC"> BLDC</a> </p> <a href="https://publications.waset.org/abstracts/41389/bldc-motor-design-considering-core-loss-caused-by-welding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41389.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">563</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">9048</span> The Effect of Dynamic Eccentricity on the Stator Current Spectrum of 550 kW Induction Motor </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saleh%20Elawgali">Saleh Elawgali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to present the effect of the dynamic eccentricity on the stator currents of squirrel cage induction machines, the current spectrums of a 550 kW induction motor was calculated for the cases of full symmetry and dynamic eccentricity. The calculations presented in this paper are based on the Poly-Harmonic Model accounting for static and dynamic eccentricity, stator and rotor slotting, parallel branches as well as cage asymmetry. The calculations were followed by Fourier analysis of the stator currents in steady state operation. The paper presents the stator current spectrums for full symmetry and dynamic eccentricity cases, and demonstrates the harmonics present in each case. The effect of dynamic eccentricity is demonstrating via comparing the current spectrums related to dynamic eccentricity cases with the full symmetry one. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=current%20spectrum" title="current spectrum">current spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20eccentricity" title=" dynamic eccentricity"> dynamic eccentricity</a>, <a href="https://publications.waset.org/abstracts/search?q=harmonics" title=" harmonics"> harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=Induction%20machine" title=" Induction machine"> Induction machine</a>, <a href="https://publications.waset.org/abstracts/search?q=slot%20harmonic%20zone." title=" slot harmonic zone."> slot harmonic zone.</a> </p> <a href="https://publications.waset.org/abstracts/9405/the-effect-of-dynamic-eccentricity-on-the-stator-current-spectrum-of-550-kw-induction-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9405.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">399</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">9047</span> High Performance of Direct Torque and Flux Control of a Double Stator Induction Motor Drive with a Fuzzy Stator Resistance Estimator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Kouzi">K. Kouzi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to have stable and high performance of direct torque and flux control (DTFC) of double star induction motor drive (DSIM), proper on-line adaptation of the stator resistance is very important. This is inevitably due to the variation of the stator resistance during operating conditions, which introduces error in estimated flux position and the magnitude of the stator flux. Error in the estimated stator flux deteriorates the performance of the DTFC drive. Also, the effect of error in estimation is very important especially at low speed. Due to this, our aim is to overcome the sensitivity of the DTFC to the stator resistance variation by proposing on-line fuzzy estimation stator resistance. The fuzzy estimation method is based on an on-line stator resistance correction through the variations of the stator current estimation error and its variations. The fuzzy logic controller gives the future stator resistance increment at the output. The main advantage of the suggested algorithm control is to avoid the drive instability that may occur in certain situations and ensure the tracking of the actual stator resistance. The validity of the technique and the improvement of the whole system performance are proved by the results. <p class="card-text"><strong>Keywords:</strong> <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=dual%20stator%20induction%20motor" title=" dual stator induction motor"> dual stator induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=Fuzzy%20Logic%20estimation" title=" Fuzzy Logic estimation"> Fuzzy Logic estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20resistance%20adaptation" title=" stator resistance adaptation"> stator resistance adaptation</a> </p> <a href="https://publications.waset.org/abstracts/48798/high-performance-of-direct-torque-and-flux-control-of-a-double-stator-induction-motor-drive-with-a-fuzzy-stator-resistance-estimator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48798.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">325</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">9046</span> Improvement of Direct Torque and Flux Control of Dual Stator Induction Motor Drive Using Intelligent Techniques</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kouzi%20Katia">Kouzi Katia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a Direct Torque Control (DTC) algorithm of dual Stator Induction Motor (DSIM) drive using two approach intelligent techniques: Artificial Neural Network (ANN) approach replaces the switching table selector block of conventional DTC and Mamdani Fuzzy Logic controller (FLC) is used for stator resistance estimation. The fuzzy estimation method is based on an online stator resistance correction through the variations of stator current estimation error and its variation. The fuzzy logic controller gives the future stator resistance increment at the output. The main advantage of suggested algorithm control is to reduce the hardware complexity of conventional selectors, to avoid the drive instability that may occur in certain situation and ensure the tracking of the actual of the stator resistance. The effectiveness of the technique and the improvement of the whole system performance are proved by results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20network" title="artificial neural network">artificial neural network</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=dual%20stator%20induction%20motor" title=" dual stator induction motor"> dual stator induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20logic%20estimator" title=" fuzzy logic estimator"> fuzzy logic estimator</a>, <a href="https://publications.waset.org/abstracts/search?q=switching%20table" title=" switching table"> switching table</a> </p> <a href="https://publications.waset.org/abstracts/47167/improvement-of-direct-torque-and-flux-control-of-dual-stator-induction-motor-drive-using-intelligent-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47167.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">345</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">9045</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">9044</span> Comparison between Classical and New Direct Torque Control Strategies of Induction Machine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mouna%20Essaadi">Mouna Essaadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Khafallah"> Mohamed Khafallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdallah%20Saad"> Abdallah Saad</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Chaikhy"> Hamid Chaikhy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a comparative analysis between conventional direct torque control (C_DTC), Modified direct torque control (M_DTC) and twelve sectors direct torque control (12_DTC).Those different strategies are compared by simulation in term of torque, flux and stator current performances. Finally, a summary of the comparative analysis is presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=C_DTC" title="C_DTC">C_DTC</a>, <a href="https://publications.waset.org/abstracts/search?q=M_DTC" title=" M_DTC"> M_DTC</a>, <a href="https://publications.waset.org/abstracts/search?q=12_DTC" title=" 12_DTC"> 12_DTC</a>, <a href="https://publications.waset.org/abstracts/search?q=torque%20dynamic" title=" torque dynamic"> torque dynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20current" title=" stator current"> stator current</a>, <a href="https://publications.waset.org/abstracts/search?q=flux" title=" flux"> flux</a>, <a href="https://publications.waset.org/abstracts/search?q=performances" title=" performances"> performances</a> </p> <a href="https://publications.waset.org/abstracts/18282/comparison-between-classical-and-new-direct-torque-control-strategies-of-induction-machine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18282.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">619</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">9043</span> CFD-Parametric Study in Stator Heat Transfer of an Axial Flux Permanent Magnet Machine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Rasekh">Alireza Rasekh</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Sergeant"> Peter Sergeant</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Vierendeels"> Jan Vierendeels</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper copes with the numerical simulation for convective heat transfer in the stator disk of an axial flux permanent magnet (AFPM) electrical machine. Overheating is one of the main issues in the design of AFMPs, which mainly occurs in the stator disk, so that it needs to be prevented. A rotor-stator configuration with 16 magnets at the periphery of the rotor is considered. Air is allowed to flow through openings in the rotor disk and channels being formed between the magnets and in the gap region between the magnets and the stator surface. The rotating channels between the magnets act as a driving force for the air flow. The significant non-dimensional parameters are the rotational Reynolds number, the gap size ratio, the magnet thickness ratio, and the magnet angle ratio. The goal is to find correlations for the Nusselt number on the stator disk according to these non-dimensional numbers. Therefore, CFD simulations have been performed with the multiple reference frame (MRF) technique to model the rotary motion of the rotor and the flow around and inside the machine. A minimization method is introduced by a pattern-search algorithm to find the appropriate values of the reference temperature. It is found that the correlations are fast, robust and is capable of predicting the stator heat transfer with a good accuracy. The results reveal that the magnet angle ratio diminishes the stator heat transfer, whereas the rotational Reynolds number and the magnet thickness ratio improve the convective heat transfer. On the other hand, there a certain gap size ratio at which the stator heat transfer reaches a maximum. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AFPM" title="AFPM">AFPM</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=magnet%20parameters" title=" magnet parameters"> magnet parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20heat%20transfer" title=" stator heat transfer"> stator heat transfer</a> </p> <a href="https://publications.waset.org/abstracts/56746/cfd-parametric-study-in-stator-heat-transfer-of-an-axial-flux-permanent-magnet-machine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56746.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">250</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">9042</span> Diagnosis of Static Eccentricity in 400 kW Induction Machine Based on the Analysis of Stator Currents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saleh%20Elawgali">Saleh Elawgali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Current spectrums of a four pole-pair, 400 kW induction machine were calculated for the cases of full symmetry and static eccentricity. The calculations involve integration of 93 electrical plus four mechanical ordinary differential equations. Electrical equations account for variable inductances affected by slotting and eccentricities. The calculations were followed by Fourier analysis of the stator currents in steady state operation. Zooms of the current spectrums, around the 50 Hz fundamental harmonic as well as of the main slot harmonic zone, were included. The spectrums included refer to both calculated and measured currents. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diagnostic" title="diagnostic">diagnostic</a>, <a href="https://publications.waset.org/abstracts/search?q=harmonic" title=" harmonic"> harmonic</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20machine" title=" induction machine"> induction machine</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrum" title=" spectrum"> spectrum</a> </p> <a href="https://publications.waset.org/abstracts/1932/diagnosis-of-static-eccentricity-in-400-kw-induction-machine-based-on-the-analysis-of-stator-currents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1932.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">523</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">9041</span> Estimation of the Temperatures in an Asynchronous Machine Using Extended Kalman Filter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yi%20Huang">Yi Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Clemens%20Guehmann"> Clemens Guehmann</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to monitor the thermal behavior of an asynchronous machine with squirrel cage rotor, a 9th-order extended Kalman filter (EKF) algorithm is implemented to estimate the temperatures of the stator windings, the rotor cage and the stator core. The state-space equations of EKF are established based on the electrical, mechanical and the simplified thermal models of an asynchronous machine. The asynchronous machine with simplified thermal model in Dymola is compiled as DymolaBlock, a physical model in MATLAB/Simulink. The coolant air temperature, three-phase voltages and currents are exported from the physical model and are processed by EKF estimator as inputs. Compared to the temperatures exported from the physical model of the machine, three parts of temperatures can be estimated quite accurately by the EKF estimator. The online EKF estimator is independent from the machine control algorithm and can work under any speed and load condition if the stator current is nonzero current system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=asynchronous%20machine" title="asynchronous machine">asynchronous machine</a>, <a href="https://publications.waset.org/abstracts/search?q=extended%20Kalman%20filter" title=" extended Kalman filter"> extended Kalman filter</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance" title=" resistance"> resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20estimation" title=" temperature estimation"> temperature estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20model" title=" thermal model"> thermal model</a> </p> <a href="https://publications.waset.org/abstracts/67431/estimation-of-the-temperatures-in-an-asynchronous-machine-using-extended-kalman-filter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67431.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">285</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">9040</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">9039</span> Induction Motor Stator Fault Analysis Using Phase-Angle and Magnitude of the Line Currents Spectra</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <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=Noureddine%20Benouzza"> Noureddine Benouzza</a>, <a href="https://publications.waset.org/abstracts/search?q=Azeddine%20Bendiabdellah"> Azeddine Bendiabdellah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20El%20Amine%20Khodja"> Mohamed El Amine Khodja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes a new diagnosis approach for identification of the progressive stator winding inter-turn short-circuit fault in induction motor. This approach is based on a simple monitoring of the combined information related to both magnitude and phase-angle obtained from the fundamental by the three line currents frequency analysis. In addition, to simplify the interpretation and analysis of the data; a new graphical tool based on a triangular representation is suggested. This representation, depending on its size, enables to visualize in a simple and clear manner, the existence of the stator inter-turn short-circuit fault and its discrimination with respect to a healthy stator. Experimental results show well the benefit and effectiveness of the proposed approach. <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=magnitude" title=" magnitude"> magnitude</a>, <a href="https://publications.waset.org/abstracts/search?q=phase-angle" title=" phase-angle"> phase-angle</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20analysis" title=" spectral analysis"> spectral analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20fault" title=" stator fault"> stator fault</a> </p> <a href="https://publications.waset.org/abstracts/71288/induction-motor-stator-fault-analysis-using-phase-angle-and-magnitude-of-the-line-currents-spectra" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71288.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">361</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">9038</span> A Novel Stator Resistance Estimation Method and Control Design of Speed-Sensorless Induction Motor Drives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Ben%20Si%20Ali">N. Ben Si Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Benalia"> N. Benalia</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Zarzouri"> N. Zarzouri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Speed sensorless systems are intensively studied during recent years; this is mainly due to their economical benefit and fragility of mechanical sensors and also the difficulty of installing this type of sensor in many applications. These systems suffer from instability problems and sensitivity to parameter mismatch at low speed operation. In this paper an analysis of adaptive observer stability with stator resistance estimation is given. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=motor%20drive" title="motor drive">motor drive</a>, <a href="https://publications.waset.org/abstracts/search?q=sensorless%20control" title=" sensorless control"> sensorless control</a>, <a href="https://publications.waset.org/abstracts/search?q=adaptive%20observer" title=" adaptive observer"> adaptive observer</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20resistance%20estimation" title=" stator resistance estimation"> stator resistance estimation</a> </p> <a href="https://publications.waset.org/abstracts/7961/a-novel-stator-resistance-estimation-method-and-control-design-of-speed-sensorless-induction-motor-drives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7961.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">375</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">9037</span> A Fault Analysis Cracked-Rotor-to-Stator Rub and Unbalance by Vibration Analysis Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20X.%20Tchomeni">B. X. Tchomeni</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20A.%20Alugongo"> A. A. Alugongo</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20M.%20Masu"> L. M. Masu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An analytical 4-DOF nonlinear model of a de Laval rotor-stator system based on Energy Principles has been used theoretically and experimentally to investigate fault symptoms in a rotating system. The faults, namely rotor-stator-rub, crack and unbalance are modelled as excitations on the rotor shaft. Mayes steering function is used to simulate the breathing behaviour of the crack. The fault analysis technique is based on waveform signal, orbits and Fast Fourier Transform (FFT) derived from simulated and real measured signals. Simulated and experimental results manifest considerable mutual resemblance of elliptic-shaped orbits and FFT for a same range of test data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=a%20breathing%20crack" title="a breathing crack">a breathing crack</a>, <a href="https://publications.waset.org/abstracts/search?q=fault" title=" fault"> fault</a>, <a href="https://publications.waset.org/abstracts/search?q=FFT" title=" FFT"> FFT</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear" title=" nonlinear"> nonlinear</a>, <a href="https://publications.waset.org/abstracts/search?q=orbit" title=" orbit"> orbit</a>, <a href="https://publications.waset.org/abstracts/search?q=rotor-stator%20rub" title=" rotor-stator rub"> rotor-stator rub</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20analysis" title=" vibration analysis"> vibration analysis</a> </p> <a href="https://publications.waset.org/abstracts/37670/a-fault-analysis-cracked-rotor-to-stator-rub-and-unbalance-by-vibration-analysis-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37670.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">308</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">9036</span> Online Electric Current Based Diagnosis of Stator Faults on Squirrel Cage Induction Motors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alejandro%20Paz%20Parra">Alejandro Paz Parra</a>, <a href="https://publications.waset.org/abstracts/search?q=Jose%20Luis%20Oslinger%20Gutierrez"> Jose Luis Oslinger Gutierrez</a>, <a href="https://publications.waset.org/abstracts/search?q=Javier%20Olaya%20Ochoa"> Javier Olaya Ochoa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present paper, five electric current based methods to analyze electric faults on the stator of induction motors (IM) are used and compared. The analysis tries to extend the application of the multiple reference frames diagnosis technique. An eccentricity indicator is presented to improve the application of the Park’s Vector Approach technique. Most of the fault indicators are validated and some others revised, agree with the technical literatures and published results. A tri-phase 3hp squirrel cage IM, especially modified to establish different fault levels, is used for validation purposes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=motor%20fault%20diagnosis" title="motor fault diagnosis">motor fault diagnosis</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=MCSA" title=" MCSA"> MCSA</a>, <a href="https://publications.waset.org/abstracts/search?q=ESA" title=" ESA"> ESA</a>, <a href="https://publications.waset.org/abstracts/search?q=Extended%20Park%C2%B4s%20vector%20approach" title=" Extended Park´s vector approach"> Extended Park´s vector approach</a>, <a href="https://publications.waset.org/abstracts/search?q=multiparameter%20analysis" title=" multiparameter analysis"> multiparameter analysis</a> </p> <a href="https://publications.waset.org/abstracts/57385/online-electric-current-based-diagnosis-of-stator-faults-on-squirrel-cage-induction-motors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57385.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">348</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">9035</span> Influence of Insulation System Methods on Dissipation Factor and Voltage Endurance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Yavari">Farzad Yavari</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Chegini"> Hamid Chegini</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Lotfi"> Saeed Lotfi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reviews the comparison of Resin Rich (RR) and Vacuum Pressure Impregnation (VPI) insulation system qualities for stator bar of rotating electrical machines. Voltage endurance and tangent delta are two diagnostic tests to determine the quality of insulation systems. The paper describes the trend of dissipation factor while performing voltage endurance test for different stator bar samples made with RR and VPI insulation system methods. Some samples were made with the same strands and insulation thickness but with different main wall material to prove the influence of insulation system methods on stator bar quality. Also, some of the samples were subjected to voltage at the temperature of their insulation class, and their dissipation factor changes were measured and studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VPI" title="VPI">VPI</a>, <a href="https://publications.waset.org/abstracts/search?q=resin%20rich" title=" resin rich"> resin rich</a>, <a href="https://publications.waset.org/abstracts/search?q=insulation" title=" insulation"> insulation</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20bar" title=" stator bar"> stator bar</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation%20factor" title=" dissipation factor"> dissipation factor</a>, <a href="https://publications.waset.org/abstracts/search?q=voltage%20endurance" title=" voltage endurance"> voltage endurance</a> </p> <a href="https://publications.waset.org/abstracts/104741/influence-of-insulation-system-methods-on-dissipation-factor-and-voltage-endurance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104741.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">197</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">9034</span> Offline High Voltage Diagnostic Test Findings on 15MVA Generator of Basochhu Hydropower Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suprit%20Pradhan">Suprit Pradhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Tshering%20Yangzom"> Tshering Yangzom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Even with availability of the modern day online insulation diagnostic technologies like partial discharge monitoring, the measurements like Dissipation Factor (tanδ), DC High Voltage Insulation Currents, Polarization Index (PI) and Insulation Resistance Measurements are still widely used as a diagnostic tools to assess the condition of stator insulation in hydro power plants. To evaluate the condition of stator winding insulation in one of the generators that have been operated since 1999, diagnostic tests were performed on the stator bars of 15 MVA generators of Basochhu Hydropower Plant. This paper presents diagnostic study done on the data gathered from the measurements which were performed in 2015 and 2016 as part of regular maintenance as since its commissioning no proper aging data were maintained. Measurement results of Dissipation Factor, DC High Potential tests and Polarization Index are discussed with regard to their effectiveness in assessing the ageing condition of the stator insulation. After a brief review of the theoretical background, the strengths of each diagnostic method in detecting symptoms of insulation deterioration are identified. The interesting results observed from Basochhu Hydropower Plant is taken into consideration to conclude that Polarization Index and DC High Voltage Insulation current measurements are best suited for the detection of humidity and contamination problems and Dissipation Factor measurement is a robust indicator of long-term ageing caused by oxidative degradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dissipation%20Factor%20%28tan%CE%B4%29" title="dissipation Factor (tanδ)">dissipation Factor (tanδ)</a>, <a href="https://publications.waset.org/abstracts/search?q=polarization%20Index%20%28PI%29" title=" polarization Index (PI)"> polarization Index (PI)</a>, <a href="https://publications.waset.org/abstracts/search?q=DC%20High%20Voltage%20Insulation%20Current" title=" DC High Voltage Insulation Current"> DC High Voltage Insulation Current</a>, <a href="https://publications.waset.org/abstracts/search?q=insulation%20resistance%20%28IR%29" title=" insulation resistance (IR)"> insulation resistance (IR)</a>, <a href="https://publications.waset.org/abstracts/search?q=Tan%20Delta%20Tip-Up" title=" Tan Delta Tip-Up"> Tan Delta Tip-Up</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20absorption%20ratio" title=" dielectric absorption ratio"> dielectric absorption ratio</a> </p> <a href="https://publications.waset.org/abstracts/53740/offline-high-voltage-diagnostic-test-findings-on-15mva-generator-of-basochhu-hydropower-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53740.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">312</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">9033</span> Comparison of Techniques for Detection and Diagnosis of Eccentricity in the Air-Gap Fault in Induction Motors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abrah%C3%A3o%20S.%20Fontes">Abrahão S. Fontes</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20A.%20V.%20Cardoso"> Carlos A. V. Cardoso</a>, <a href="https://publications.waset.org/abstracts/search?q=Levi%20P.%20B.%20Oliveira"> Levi P. B. Oliveira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The induction motors are used worldwide in various industries. Several maintenance techniques are applied to increase the operating time and the lifespan of these motors. Among these, the predictive maintenance techniques such as Motor Current Signature Analysis (MCSA), Motor Square Current Signature Analysis (MSCSA), Park's Vector Approach (PVA) and Park's Vector Square Modulus (PVSM) are used to detect and diagnose faults in electric motors, characterized by patterns in the stator current frequency spectrum. In this article, these techniques are applied and compared on a real motor, which has the fault of eccentricity in the air-gap. It was used as a theoretical model of an electric induction motor without fault in order to assist comparison between the stator current frequency spectrum patterns with and without faults. Metrics were purposed and applied to evaluate the sensitivity of each technique fault detection. The results presented here show that the above techniques are suitable for the fault of eccentricity in the air gap, whose comparison between these showed the suitability of each one. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eccentricity%20in%20the%20air-gap" title="eccentricity in the air-gap">eccentricity in the air-gap</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=induction%20motors" title=" induction motors"> induction motors</a>, <a href="https://publications.waset.org/abstracts/search?q=predictive%20maintenance" title=" predictive maintenance"> predictive maintenance</a> </p> <a href="https://publications.waset.org/abstracts/62315/comparison-of-techniques-for-detection-and-diagnosis-of-eccentricity-in-the-air-gap-fault-in-induction-motors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62315.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">350</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">9032</span> In situ Modelling of Lateral-Torsional Vibration of a Rotor-Stator with Multiple Parametric Excitations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20X.%20Tchomeni">B. X. Tchomeni</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20A.%20Alugongo"> A. A. Alugongo</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20M.%20Masu"> L. M. Masu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a 4-DOF nonlinear model of a cracked of Laval rotor established based on Energy Principles. The model has been used to simulate coupled torsional-lateral response of the cracked rotor stator-system with multiple parametric excitations, namely, rotor-stator-rub, a breathing transverse crack, unbalanced mass, and an axial force. Nonlinearity due to a “breathing” crack is incorporated by considering a simple hinge model which is suitable for small breathing crack. The vibration response of a cracked rotor passing through its critical speed with rotor-stator interaction is analyzed, and an attempt for crack detection and monitoring explored. Effects of unbalanced eccentricity with phase and acceleration are investigated. By solving the motion equations, steady-state vibration response is obtained in presence of several rotor faults. The presence of a crack is observable in the power spectrum despite the excitation by the axial force and rotor-stator rub impact. Presented results are consistent with existing literature and could be adopted into rotor condition monitoring strategies <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rotor" title="rotor">rotor</a>, <a href="https://publications.waset.org/abstracts/search?q=crack" title=" crack"> crack</a>, <a href="https://publications.waset.org/abstracts/search?q=rubbing" title=" rubbing"> rubbing</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20force" title=" axial force"> axial force</a>, <a href="https://publications.waset.org/abstracts/search?q=non%20linear" title=" non linear"> non linear</a> </p> <a href="https://publications.waset.org/abstracts/15695/in-situ-modelling-of-lateral-torsional-vibration-of-a-rotor-stator-with-multiple-parametric-excitations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15695.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">401</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">9031</span> Park’s Vector Approach to Detect an Inter Turn Stator Fault in a Doubly Fed Induction Machine by a Neural Network</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amel%20Ourici">Amel Ourici</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An electrical machine failure that is not identified in an initial stage may become catastrophic and it may suffer severe damage. Thus, undetected machine faults may cascade in it failure, which in turn may cause production shutdowns. Such shutdowns are costly in terms of lost production time, maintenance costs, and wasted raw materials. Doubly fed induction generators are used mainly for wind energy conversion in MW power plants. This paper presents a detection of an inter turn stator fault in a doubly fed induction machine whose stator and rotor are supplied by two pulse width modulation (PWM) inverters. The method used in this article to detect this fault, is based on Park’s Vector Approach, using a neural network. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=doubly%20fed%20induction%20machine" title="doubly fed induction machine">doubly fed induction machine</a>, <a href="https://publications.waset.org/abstracts/search?q=PWM%20inverter" title=" PWM inverter"> PWM inverter</a>, <a href="https://publications.waset.org/abstracts/search?q=inter%20turn%20stator%20fault" title=" inter turn stator fault"> inter turn stator fault</a>, <a href="https://publications.waset.org/abstracts/search?q=Park%E2%80%99s%20vector%20approach" title=" Park’s vector approach"> Park’s vector approach</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title=" neural network "> neural network </a> </p> <a href="https://publications.waset.org/abstracts/21491/parks-vector-approach-to-detect-an-inter-turn-stator-fault-in-a-doubly-fed-induction-machine-by-a-neural-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21491.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">608</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">9030</span> Stability Analysis of DFIG Stator Powers Control Based on Sliding Mode Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelhak%20Djoudi">Abdelhak Djoudi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hachemi%20Chekireb"> Hachemi Chekireb</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Madjid%20Berkouk"> El Madjid Berkouk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The doubly fed induction generator (DFIG) received recently an important consideration in medium and high power wind energy conversion systems integration, due to its advantages compared to other generators types. The stator power sliding mode control (SPSMC) proves a great efficiency judge against other control laws and schemes. In the SPSMC laws elaborated by several authors, only the slide surface tracking conditions are elaborated using Lyapunov functions, and the boundedness of the DFIG states is never treated. Some works have validated theirs approaches by experiments results in the case of specified machines, but these verifications stay insufficient to generalize to other machines range. Adding to this argument, the DFIG states boundedness demonstration is widely suggested in goal to ensure that in the application of the SPSMC, the states evaluates within theirs tolerable bounds. Our objective in the present paper is to highlight the efficiency of the SPSMC by stability analysis. The boundedness of the DFIG states such as the stator current and rotor flux is discussed. Moreover, the states trajectories are finding using analytical proves taking into consideration the SPSMC gains. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doubly%20Fed%20Induction%20Generator%20%28DFIG%29" title="Doubly Fed Induction Generator (DFIG)">Doubly Fed Induction Generator (DFIG)</a>, <a href="https://publications.waset.org/abstracts/search?q=Stator%20Powers%20Sliding%20Mode%20Control%20%28SPSMC%29" title=" Stator Powers Sliding Mode Control (SPSMC)"> Stator Powers Sliding Mode Control (SPSMC)</a>, <a href="https://publications.waset.org/abstracts/search?q=lyapunov%20function" title=" lyapunov function"> lyapunov function</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=states%20boundedness" title=" states boundedness"> states boundedness</a>, <a href="https://publications.waset.org/abstracts/search?q=trajectories%20mathematical%20proves" title=" trajectories mathematical proves"> trajectories mathematical proves</a> </p> <a href="https://publications.waset.org/abstracts/1642/stability-analysis-of-dfig-stator-powers-control-based-on-sliding-mode-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1642.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">400</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">9029</span> Stator Short-Circuits Fault Diagnosis in Induction Motors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Yahia">K. Yahia</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Sahraoui"> M. Sahraoui</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Guettaf"> A. Guettaf </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper deals with the problem of stator faults diagnosis in induction motors. Using the discrete wavelet transform (DWT) for the current Park’s vector modulus (CPVM) analysis, the inter-turn short-circuit faults diagnosis can be achieved. This method is based on the decomposition of the CPVM signal, where wavelet approximation and detail coefficients of this signal have been extracted. The energy evaluation of a known bandwidth detail permits to define a fault severity factor (FSF). This method has been tested through the simulation of an induction motor using a mathematical model based on the winding-function approach. Simulation, as well as experimental results, show the effectiveness of the used method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=induction%20motors%20%28IMs%29" title="induction motors (IMs)">induction motors (IMs)</a>, <a href="https://publications.waset.org/abstracts/search?q=inter-turn%20short-circuits%20diagnosis" title=" inter-turn short-circuits diagnosis"> inter-turn short-circuits diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20wavelet%20transform%20%28DWT%29" title=" discrete wavelet transform (DWT)"> discrete wavelet transform (DWT)</a>, <a href="https://publications.waset.org/abstracts/search?q=Current%20Park%E2%80%99s%20Vector%20Modulus%20%28CPVM%29" title=" Current Park’s Vector Modulus (CPVM)"> Current Park’s Vector Modulus (CPVM)</a> </p> <a href="https://publications.waset.org/abstracts/82115/stator-short-circuits-fault-diagnosis-in-induction-motors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82115.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">457</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">9028</span> A Comprehensive Review of Axial Flux Machines and Its Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahbaz%20Amin">Shahbaz Amin</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabir%20Hussain%20Shah"> Sabir Hussain Shah</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahib%20Khan"> Sahib Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a thorough review concerning the design types of axial flux permanent magnet machines (AFPM) in terms of different features such as construction, design, materials, and manufacturing. Particular emphasis is given on the design and performance analysis of AFPM machines. A comparison among different permanent magnet machines is also provided. First of all, early and modern axial flux machines are mentioned. Secondly, rotor construction of different axial flux machines is described, then different stator constructions are mentioned depending upon the presence of slots and stator back iron. Then according to the arrangement of the rotor stator structure the machines are classified into single, double and multi-stack arrangements. Advantages, disadvantages and applications of each type of rotor and stator are pointed out. Finally on the basis of the reviewed literature merits, demerits, features and application of different axial flux machines structures are explained and clarified. Thus, this paper provides connection between the machines that are currently being used in industry and the developments of AFPM throughout the years. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=axial%20flux%20machines" title="axial flux machines">axial flux machines</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20flux%20applications" title=" axial flux applications"> axial flux applications</a>, <a href="https://publications.waset.org/abstracts/search?q=coreless%20machines" title=" coreless machines"> coreless machines</a>, <a href="https://publications.waset.org/abstracts/search?q=PM%20machines" title=" PM machines"> PM machines</a> </p> <a href="https://publications.waset.org/abstracts/95500/a-comprehensive-review-of-axial-flux-machines-and-its-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95500.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">217</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">9027</span> Investigation on Unsteady Flow of a Turbine Stage with Negative Bowed Stator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Keke%20Gao">Keke Gao</a>, <a href="https://publications.waset.org/abstracts/search?q=Tao%20Lin"> Tao Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Yonghui%20Xie"> Yonghui Xie</a>, <a href="https://publications.waset.org/abstracts/search?q=Di%20Zhang"> Di Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Complicated unsteady flow in axial turbines produces high-frequency unsteady aerodynamic exciting force, which threatens the safe operation of turbines. This paper illustrates how negative-bowed stator reduces the rotor unsteady aerodynamic exciting force by unsteady flow field. With the support of three-dimensional viscous compressible Navier-Stokes equation, the single axial turbines with 0, -10 and -20 degree bowed stator are comparably investigated, aiming to identify the flow field structure difference caused by various negative-bowed degrees. The results show that negative-bowed stator strengthens the turbulence kinetic energy, which is further strengthened with the increase of negative-bowed degree. Meanwhile, the flow phenomenon including stator wakes and passage vortex is shown. In addition, the interaction of upstream negative-bowed wakes contributes to the reduction of unsteady blade load fluctuation. Furthermore, the aerodynamic exciting force decreases with the increasing negative bowed degree, while the efficiency is correspondingly reduced. This paper provides the reference for the alleviation of the harmful impact caused by unsteady interaction with the method of wake control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=unsteady%20flow" title="unsteady flow">unsteady flow</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20turbine" title=" axial turbine"> axial turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=wake" title=" wake"> wake</a>, <a href="https://publications.waset.org/abstracts/search?q=aerodynamic%20force" title=" aerodynamic force"> aerodynamic force</a>, <a href="https://publications.waset.org/abstracts/search?q=loss" title=" loss"> loss</a> </p> <a href="https://publications.waset.org/abstracts/68734/investigation-on-unsteady-flow-of-a-turbine-stage-with-negative-bowed-stator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68734.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">295</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">9026</span> Stator Short-Circuits Fault Diagnosis in Induction Motors Using Extended Park’s Vector Approach through the Discrete Wavelet Transform </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Yahia">K. Yahia</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Ghoggal"> A. Ghoggal</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Titaouine"> A. Titaouine</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20E.%20Zouzou"> S. E. Zouzou</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Benchabane"> F. Benchabane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper deals with the problem of stator faults diagnosis in induction motors. Using the discrete wavelet transform (DWT) for the current Park’s vector modulus (CPVM) analysis, the inter-turn short-circuit faults diagnosis can be achieved. This method is based on the decomposition of the CPVM signal, where wavelet approximation and detail coefficients of this signal have been extracted. The energy evaluation of a known bandwidth detail permits to define a fault severity factor (FSF). This method has been tested through the simulation of an induction motor using a mathematical model based on the winding-function approach. Simulation, as well as experimental, results show the effectiveness of the used method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Induction%20Motors%20%28IMs%29" title="Induction Motors (IMs)">Induction Motors (IMs)</a>, <a href="https://publications.waset.org/abstracts/search?q=Inter-turn%20Short-Circuits%20Diagnosis" title=" Inter-turn Short-Circuits Diagnosis"> Inter-turn Short-Circuits Diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=Discrete%20Wavelet%20Transform%20%28DWT%29" title=" Discrete Wavelet Transform (DWT)"> Discrete Wavelet Transform (DWT)</a>, <a href="https://publications.waset.org/abstracts/search?q=Current%20Park%E2%80%99s%20Vector%20Modulus%20%28CPVM%29" title=" Current Park’s Vector Modulus (CPVM)"> Current Park’s Vector Modulus (CPVM)</a> </p> <a href="https://publications.waset.org/abstracts/22006/stator-short-circuits-fault-diagnosis-in-induction-motors-using-extended-parks-vector-approach-through-the-discrete-wavelet-transform" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22006.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">563</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">9025</span> Upgrading of Old Large Turbo Generators</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Shadmand">M. Shadmand</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Enayaty%20Ahangar"> T. Enayaty Ahangar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Kazemi"> S. Kazemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Insulation system of electrical machineries is the most critical point for their durability. Depending on generator nominal voltage, its insulation system is designed. In this research, a new stator insulation system is designed by new type of mica tapes which will consequently enables us to decrease the nominal ground-wall insulation thickness for the same voltage level. By keeping constant the slot area, it will be possible to increase the copper value in stator bars which will consequently able us to increase the nominal output current of turbo-generator. This will affect the cooling capability of machinery to some extent. But by considering the thermal conductivity of new insulating system which is improved, it is possible to increase the output power of generator up to 6% more. This research is done practically on a 200 MVA and 15.75 kV turbo-generators which its insulating system is Resin Rich (RR). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=insulation%20system" title="insulation system">insulation system</a>, <a href="https://publications.waset.org/abstracts/search?q=resin%20rich" title=" resin rich"> resin rich</a>, <a href="https://publications.waset.org/abstracts/search?q=VPI" title=" VPI"> VPI</a>, <a href="https://publications.waset.org/abstracts/search?q=upgrading" title=" upgrading"> upgrading</a> </p> <a href="https://publications.waset.org/abstracts/35957/upgrading-of-old-large-turbo-generators" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35957.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">502</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">9024</span> Investigation of Grid Supply Harmonic Effects in Wound Rotor Induction Machines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nur%20Sarma">Nur Sarma</a>, <a href="https://publications.waset.org/abstracts/search?q=Paul%20M.%20Tuohy"> Paul M. Tuohy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sini%C5%A1a%20Djurovi%C4%87"> Siniša Djurović</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents an in-depth investigation of the effects of several grid supply harmonic voltages on the stator currents of an example wound rotor induction machine. The observed effects of higher order grid supply harmonics are identified using a finite element time stepping transient model, as well as a time-stepping electromagnetic model. In addition, a number of analytical equations to calculate the spectral content of the stator currents are presented in the paper. The presented equations are validated through comparison with the obtained spectra predicted using the finite element and electromagnetic models. The presented study provides a better understanding of the origin of supply harmonic effects identified in the stator currents of the example wound rotor induction machine. Furthermore, the study helps to understand the effects of higher order supply harmonics on the harmonic emissions of the wound rotor induction machine.   <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wound%20rotor%20induction%20machine" title="wound rotor induction machine">wound rotor induction machine</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20harmonics" title=" supply harmonics"> supply harmonics</a>, <a href="https://publications.waset.org/abstracts/search?q=current%20spectrum" title=" current spectrum"> current spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20spectrum" title=" power spectrum"> power spectrum</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20quality" title=" power quality"> power quality</a>, <a href="https://publications.waset.org/abstracts/search?q=harmonic%20emmisions" title=" harmonic emmisions"> harmonic emmisions</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a> </p> <a href="https://publications.waset.org/abstracts/87478/investigation-of-grid-supply-harmonic-effects-in-wound-rotor-induction-machines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87478.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">177</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">9023</span> Direct Drive Double Fed Wind Generator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vlado%20Ostovic">Vlado Ostovic</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An electric machine topology characterized by single tooth winding in both stator and rotor is presented. The proposed machine is capable of operating as a direct drive double fed wind generator (DDDF, D3F) because it requires no gearbox and only a reduced-size converter. A wind turbine drive built around a D3F generator is cheaper to manufacture, requires less maintenance, and has a higher energy yield than its conventional counterparts. The single tooth wound generator of a D3F turbine has superb volume utilization and lower stator I2R losses due to its extremely short-end windings. Both stator and rotor of a D3F generator can be manufactured in segments, which simplifies its assembly and transportation to the site, and makes production cheaper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=direct%20drive" title="direct drive">direct drive</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20fed%20generator" title=" double fed generator"> double fed generator</a>, <a href="https://publications.waset.org/abstracts/search?q=gearbox" title=" gearbox"> gearbox</a>, <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20generators" title=" permanent magnet generators"> permanent magnet generators</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20tooth%20winding" title=" single tooth winding"> single tooth winding</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20power" title=" wind power"> wind power</a> </p> <a href="https://publications.waset.org/abstracts/152197/direct-drive-double-fed-wind-generator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152197.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">190</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">9022</span> Novel Stator Structure Switching Flux Permanent Magnet Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mengjie%20Shen">Mengjie Shen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianhua%20Wu"> Jianhua Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Chun%20Gan"> Chun Gan</a>, <a href="https://publications.waset.org/abstracts/search?q=Lifeng%20Zhang"> Lifeng Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Qingguo%20Sun"> Qingguo Sun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Switching flux permanent magnet (SFPM) motor has doubly salient structure which lead to high torque ripple, and also has cogging torque as a permanent magnet motor. Torque ripple and cogging torque have impact on the motor performance. A novel stator structure SFPM motor is presented in this paper. A triangular shape silicon steel sheet is put in the stator slot to reduce the torque ripple, which will not deteriorate the cogging torque. The simulation of proposed motor is analyzed using 2-D finite element method (FEM) based on Ansoft and Simplorer software, and the result show a good performance of the proposed SFPM motor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=switching%20flux%20permanent%20magnet%20%28SFPM%29%20motor" title="switching flux permanent magnet (SFPM) motor">switching flux permanent magnet (SFPM) motor</a>, <a href="https://publications.waset.org/abstracts/search?q=torque%20ripple" title=" torque ripple"> torque ripple</a>, <a href="https://publications.waset.org/abstracts/search?q=Ansoft" title=" Ansoft"> Ansoft</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a> </p> <a href="https://publications.waset.org/abstracts/20010/novel-stator-structure-switching-flux-permanent-magnet-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20010.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">570</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">9021</span> Design and Simulation of a Double-Stator Linear Induction Machine with Short Squirrel-Cage Mover</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=David%20Rafetseder">David Rafetseder</a>, <a href="https://publications.waset.org/abstracts/search?q=Walter%20Bauer"> Walter Bauer</a>, <a href="https://publications.waset.org/abstracts/search?q=Florian%20Poltschak"> Florian Poltschak</a>, <a href="https://publications.waset.org/abstracts/search?q=Wolfgang%20Amrhein"> Wolfgang Amrhein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A flat double-stator linear induction machine (DSLIM) with a short squirrel-cage mover is designed for high thrust force at moderate speed < 5m/s. The performance and motor parameters are determined on the basis of a 2D time-transient simulation with the finite element (FE) software Maxwell 2015. Design guidelines and transformation rules for space vector theory of the LIM are presented. Resulting thrust calculated by flux and current vectors is compared with the FE results showing good coherence and reduced noise. The parameters of the equivalent circuit model are obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=equivalent%20circuit%20model" title="equivalent circuit model">equivalent circuit model</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20model" title=" finite element model"> finite element model</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20induction%20motor" title=" linear induction motor"> linear induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=space%20vector%20theory" title=" space vector theory"> space vector theory</a> </p> <a href="https://publications.waset.org/abstracts/31860/design-and-simulation-of-a-double-stator-linear-induction-machine-with-short-squirrel-cage-mover" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31860.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">566</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">9020</span> DFIG-Based Wind Turbine with Shunt Active Power Filter Controlled by Double Nonlinear Predictive Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abderrahmane%20El%20Kachani">Abderrahmane El Kachani</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Mahjoub%20Chakir"> El Mahjoub Chakir</a>, <a href="https://publications.waset.org/abstracts/search?q=Anass%20Ait%20Laachir"> Anass Ait Laachir</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelhamid%20Niaaniaa"> Abdelhamid Niaaniaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamal%20Zerouaoui"> Jamal Zerouaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarik%20Jarou"> Tarik Jarou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a wind turbine based on the doubly fed induction generator (DFIG) connected to the utility grid through a shunt active power filter (SAPF). The whole system is controlled by a double nonlinear predictive controller (DNPC). A Taylor series expansion is used to predict the outputs of the system. The control law is calculated by optimization of the cost function. The first nonlinear predictive controller (NPC) is designed to ensure the high performance tracking of the rotor speed and regulate the rotor current of the DFIG, while the second one is designed to control the SAPF in order to compensate the harmonic produces by the three-phase diode bridge supplied by a passive circuit (rd, Ld). As a result, we obtain sinusoidal waveforms of the stator voltage and stator current. The proposed nonlinear predictive controllers (NPCs) are validated via simulation on a 1.5 MW DFIG-based wind turbine connected to an SAPF. The results obtained appear to be satisfactory and promising. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wind%20power" title="wind power">wind power</a>, <a href="https://publications.waset.org/abstracts/search?q=doubly%20fed%20induction%20generator" title=" doubly fed induction generator"> doubly fed induction generator</a>, <a href="https://publications.waset.org/abstracts/search?q=shunt%20active%20power%20filter" title=" shunt active power filter"> shunt active power filter</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20nonlinear%20predictive%20controller" title=" double nonlinear predictive controller"> double nonlinear predictive controller</a> </p> <a href="https://publications.waset.org/abstracts/37279/dfig-based-wind-turbine-with-shunt-active-power-filter-controlled-by-double-nonlinear-predictive-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37279.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">416</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=stator%20current&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=stator%20current&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=stator%20current&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=stator%20current&page=5">5</a></li> <li class="page-item"><a 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