Search results for: Guorui Zhu

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Zhu</title> <meta name="description" content="Search results for: Guorui Zhu"> <meta name="keywords" content="Guorui Zhu"> <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 ml-auto" 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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="Guorui Zhu"> <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> 3</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Guorui Zhu</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Techno-Economic Analysis of Motor-Generator Pair System and Virtual Synchronous Generator for Providing Inertia of Power System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zhou%20Yingkun">Zhou Yingkun</a>, <a href="https://publications.waset.org/abstracts/search?q=Xu%20Guorui"> Xu Guorui</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Siming"> Wei Siming</a>, <a href="https://publications.waset.org/abstracts/search?q=Huang%20Yongzhang"> Huang Yongzhang </a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the increasing of the penetration of renewable energy in power system, the whole inertia of the power system is declining, which will endanger the frequency stability of the power system. In order to enhance the inertia, virtual synchronous generator (VSG) has been proposed. In addition, the motor-generator pair (MGP) system is proposed to enhance grid inertia. Both of them need additional equipment to provide instantaneous energy, so the economic problem should be considered. In this paper, the basic working principle of MGP system and VSG are introduced firstly. Then, the technical characteristics and economic investment of MGP/VSG are compared by calculation and simulation. The results show that the MGP system can provide same inertia with less cost than VSG. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20renewable%20energy%20penetration" title="high renewable energy penetration">high renewable energy penetration</a>, <a href="https://publications.waset.org/abstracts/search?q=inertia%20of%20power%20system" title=" inertia of power system"> inertia of power system</a>, <a href="https://publications.waset.org/abstracts/search?q=motor-generator%20pair%20%28MGP%29%20system" title=" motor-generator pair (MGP) system"> motor-generator pair (MGP) system</a>, <a href="https://publications.waset.org/abstracts/search?q=virtual%20synchronous%20generator%20%28VSG%29" title=" virtual synchronous generator (VSG)"> virtual synchronous generator (VSG)</a>, <a href="https://publications.waset.org/abstracts/search?q=techno-economic%20analysis" title=" techno-economic analysis"> techno-economic analysis</a> </p> <a href="https://publications.waset.org/abstracts/71333/techno-economic-analysis-of-motor-generator-pair-system-and-virtual-synchronous-generator-for-providing-inertia-of-power-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71333.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">454</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">2</span> Structural Parameter-Induced Focusing Pattern Transformation in CEA Microfluidic Device</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xin%20Shi">Xin Shi</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Tan"> Wei Tan</a>, <a href="https://publications.waset.org/abstracts/search?q=Guorui%20Zhu"> Guorui Zhu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The contraction-expansion array (CEA) microfluidic device is widely used for particle focusing and particle separation. Without the introduction of external fields, it can manipulate particles using hydrodynamic forces, including inertial lift forces and Dean drag forces. The focusing pattern of the particles in a CEA channel can be affected by the structural parameter, block ratio, and flow streamlines. Here, two typical focusing patterns with five different structural parameters were investigated, and the force mechanism was analyzed. We present nine CEA channels with different aspect ratios based on the process of changing the particle equilibrium positions. The results show that 10-15 μm particles have the potential to generate a side focusing line as the structural parameter (¬R𝓌) increases. For a determined channel structure and target particles, when the Reynolds number (Rₑ) exceeds the critical value, the focusing pattern will transform from a single pattern to a double pattern. The parameter α/R𝓌 can be used to calculate the critical Reynolds number for the focusing pattern transformation. The results can provide guidance for microchannel design and biomedical analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microfluidic" title="microfluidic">microfluidic</a>, <a href="https://publications.waset.org/abstracts/search?q=inertial%20focusing" title=" inertial focusing"> inertial focusing</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20separation" title=" particle separation"> particle separation</a>, <a href="https://publications.waset.org/abstracts/search?q=Dean%20flow" title=" Dean flow"> Dean flow</a> </p> <a href="https://publications.waset.org/abstracts/144908/structural-parameter-induced-focusing-pattern-transformation-in-cea-microfluidic-device" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144908.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">79</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">1</span> A Mixture Vine Copula Structures Model for Dependence Wind Speed among Wind Farms and Its Application in Reactive Power Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yibin%20Qiu">Yibin Qiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yubo%20Ouyang"> Yubo Ouyang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shihan%20Li"> Shihan Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Guorui%20Zhang"> Guorui Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Qi%20Li"> Qi Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Weirong%20Chen"> Weirong Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper aims at exploring the impacts of high dimensional dependencies of wind speed among wind farms on probabilistic optimal power flow. To obtain the reactive power optimization faster and more accurately, a mixture vine Copula structure model combining the K-means clustering, C vine copula and D vine copula is proposed in this paper, through which a more accurate correlation model can be obtained. Moreover, a Modified Backtracking Search Algorithm (MBSA), the three-point estimate method is applied to probabilistic optimal power flow. The validity of the mixture vine copula structure model and the MBSA are respectively tested in IEEE30 node system with measured data of 3 adjacent wind farms in a certain area, and the results indicate effectiveness of these methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mixture%20vine%20copula%20structure%20model" title="mixture vine copula structure model">mixture vine copula structure model</a>, <a href="https://publications.waset.org/abstracts/search?q=three-point%20estimate%20method" title=" three-point estimate method"> three-point estimate method</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20probability%20integral%20transform" title=" the probability integral transform"> the probability integral transform</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20backtracking%20search%20algorithm" title=" modified backtracking search algorithm"> modified backtracking search algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=reactive%20power%20optimization" title=" reactive power optimization"> reactive power optimization</a> </p> <a href="https://publications.waset.org/abstracts/66356/a-mixture-vine-copula-structures-model-for-dependence-wind-speed-among-wind-farms-and-its-application-in-reactive-power-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66356.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">248</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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Search results for: Guorui Zhu