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ZHENG Bining,YAN Dong,SONG Peng,ZHANG Zhen,YAN Yan
Abstract:The structure parameters of dual-stator permanent magnet synchronous motors(DSPMSM)wereoptimized with finite element methodTaguchi method at the rated point,maximum torque point,and maximum speed point,respectively,aiming at the problem of large torque ripple of DSPMSM. The influence onelectromagnetic torqu...
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Number of views:542 Amount of downloads:374
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QIN Changfeng,YIN Jiang,SONG Shijie
Abstract:In order to solve the problem of parameter estimation in the high-performance control of squirrelcage asynchronous motor,a method for joint parameter identification of asynchronous motors with dual modelsbased on improved whale algorithm was proposed. This method can effectively identify the stator resistan...
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Number of views:511 Amount of downloads:342
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ZOU Yingdong,WANG Fengjun,ZHOU Yu
Abstract:This research focused on the separation and calculation of electromagnetic losses in semi-directdrived permanent magnet wind generators(SDDPMWG). Firstly,analytical method for calculating core loss ofmotor considering harmonic current was derived based on the Bertotti method. The eddy current loss of perman...
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Number of views:503 Amount of downloads:450
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SUN Chuanjie,TIAN Kai,XU Wenyuan,LU Beibei,LI Nan
Abstract:A brake unit based on IGCT was designed for different applications of frequency converter inindustrial scenes,especially the medium voltage frequency conversion system without feedback function. IGCTwas used as the main power device,and the parameters and characteristics of IGCT was analyzed. According to t...
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Number of views:481 Amount of downloads:415
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GU Laiqiang
Abstract:The traditional three-phase pulse width modulation(PWM)rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm,the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
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Number of views:529 Amount of downloads:460
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SHENG Jie,GUO Tiantian,JIA Kaili,ZHU Jianfeng,YUAN Yuan,WANG Qi
Abstract:The grid frequently exhibits weak grid characteristics because the impedance fluctuation range ofthe collector network is broad in high permeability distributed generation system. The coupling relationshipbetween the phase-locked loop and the grid impedance leads to desynchronizing between the grid-followin...
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Number of views:557 Amount of downloads:390
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ZHAO Fajin,SHU Zhengyu,WANG Can,LIU Wencan ,HUANG Qiyun
Abstract:Accurate and efficient multi-load forecasting is of great significance for the operation control andscheduling of integrated energy system(IES),in order to improve the load forecasting effect,a integrated energysystem load prediction model based on least absolute shrinkage and selection operator(LASSO)and L...
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Number of views:494 Amount of downloads:232
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TANG Lan,HUANG Liwen,WANG Chenglei
Abstract:A K-means clustering algorithm was proposed and a conditional Wasserstein generative adversarialnetwork with gradient penalty(CWGAN-GP)to address the problem of imbalanced photovoltaic generation datacaused by the low occurrence probability of extreme weather. A prediction approach combining bidirectional l...
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Number of views:425 Amount of downloads:579
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LUO Xiang,LIN Dong,ZHANG Zhenyu,WANG Jueying,CAI Zhiping,LIN Ruoyin
Abstract:To tackle the issues of low execution efficiency and poor fault tolerance in traditional faultlocalization methods for active distribution networks using swarm intelligence optimization algorithms,a two-stagefault location method was introduced based on the SSA-RF algorithm and cosine similarity. Firstly,th...
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Number of views:387 Amount of downloads:220
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MENG Jia
Abstract:To address the supply-demand imbalance caused by renewable energy intermittency and loadfluctuations in islanded microgrids,a two-layer optimization-based dynamic time-of-use(TOU)pricing schedulingmodel was proposed,aiming to enhance economic efficiency and operational stability. First,a comprehensivemicrog...
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Number of views:298 Amount of downloads:280
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ZHANG Baorui,WANG Jingtao,TAN Yao,WANG Zhiguang,LI Tang,SHI Yang
Abstract:Accurate short-term electrical load forecasting is of great significance for the design andoptimization scheduling of integrated energy systems(IES). However,the load data in real integrated energysystems are low-quality and fluctuating,so the forecasting accuracy of existing prediction models is low. A sho...
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Number of views:327 Amount of downloads:203
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YANG Guotao,HU Dongfang,ZHANG Jiaming,WEN Liqiang,TIAN Lisi
Abstract:Space vector pulse width modulation(SVPWM)strategy is one of the key technologies for threelevelinverters. However,conventional three-level SVPWM often experiences neutral point potential(NPP)oscillation and high switching loss when addressing the neutral point potential balancing issue. To tackle thischall...
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Number of views:605 Amount of downloads:535
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ZHAO Yifu,ZHANG Guangbin
Abstract:In response to the existing problems of traditional diode based clamp type wind turbine inverters,ahybrid clamp type structure was introduced. Based on the analysis of its working principle,a method for switchingthe switch state and a vector optimization selection method that can avoid modulation waveform b...
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Number of views:492 Amount of downloads:458
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LI Haoyuan,CHEN Guowei,LI Guanjun,WEI Lingfeng,LIN Da,WANG Xiangjin
Abstract:With the emergence of a large number of distributed power generations,various unbalanced andnonlinear loads are connected to the power grid,resulting in the distortion of the grid current,which brings adverse effects to both the power grid and electrical equipment. A multifunctional energy storage converter...
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Number of views:482 Amount of downloads:522
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YANG Zhaohui,WEI Huadong,HE Liuqing,ZHANG Hao,PENG Guoping,SHI Ben
Abstract:Aiming at the problem of large switching loss of modular multilevel converter(MMC),startingfrom the switching frequency optimization strategy,the existing switching frequency optimization strategy wasimproved,and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
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Number of views:455 Amount of downloads:477