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ZHANG Bin,LI Guoqing,LIU Dagui,SHI Wei,XIAO Guilian
Abstract:Reliability assessment of distribution systems is a crucial foundation for maintaining their powersupply continuity. For existing distribution network photovoltaic systems,solar irradiance modeling was limited toits exponential autocorrelation. To enhance the reliability assessment through accurate predicti...
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Number of views:784 Amount of downloads:3448
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ZHOU Xuesong,GUO Kairui,MAYoujie,ZHONG Weibao
Abstract: Although the parallel connection of inverters in a microgrid system increases the system capacity,itcreates a circulation path which provides the conditions for the generation of zero-sequence circulating current(ZSCC). In order to solve the problem of system loss caused by ZSCC,a ZSCC controller was desig...
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Number of views:3154 Amount of downloads:3446
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GAI Zhiqiang,XUE Bin,LIYajie
Abstract: The traditional fault location method lack effective fault location process,which leads to the increaseof ranging error,fault location time and complexity. In order to effectively solve the above problems,a new faultlocation method for multi-power distribution network based on traveling wave theory was des...
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Number of views:4108 Amount of downloads:3442
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ZHANG Zihua,LI Yan,XU Tianqi,WANG Yangguang,DENG Xiaoliang
Abstract: In order to improve the prediction accuracy of wind power in new wind farms effectively,theinfluencing factors between relevant wind farms were considered. A variational mode decomposition(VMD)technique was proposed to decompose the wind power preprocessing of a single wind farm into intrinsic modefunction...
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Number of views:1865 Amount of downloads:3432
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LI Zhe,LI Chengyuan,YUAN Yuan,CHEN Yujie,WANG Ziman
Abstract: Insulated gate bipolar transistor(IGBT)is widely used in the industry,but the IGBT junctiontemperature is easily affected by changes in operating conditions and the heat dissipation environment in which it islocated. Poor heat dissipation channels will cause the IGBT module to remain in a high temperature ...
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Number of views:3172 Amount of downloads:3430
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SHEN Jiexin,LIU Lei,HE Dandong,LIU Zhenguo,CHU Houguang,MA Hanchao
Abstract: When the current method is used to control the DC transformer of the DC-DC converter,thecontrol efficiency is low,the immunity is poor,and the loss detection error is large. In order to solve the existingproblems,a DC transformer control method based on the SRDAB DC-DC converter was proposed. By analyzingt...
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Number of views:3447 Amount of downloads:3428
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MENG Zhaohe,LU Beibei,YU Zhiqiang,DUAN Yichao,GE Tingting
Abstract:For the application of high-power IGBT,its driving circuit is the core part of the entire powermodule. The reliability of the driving circuit to a certain extent determines the reliability of the entire powerelectronic device,and designing highly reliable driving circuits has practical significance. The int...
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Number of views:779 Amount of downloads:3427
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LIU Siyan
Abstract: In order to realize the speed estimation and speed regulation of the permanent magnet synchronousmotor(PMSM)controller,a new type of fractional-order model reference adaptive speed observer was designed.Compared with integer-order observers,this strategy enhanced the adjustable degrees of freedom of the co...
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Number of views:3601 Amount of downloads:3426
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XIAO Longhai,FU Ming,JIN Hai
Abstract: Aiming at the problem of power deviation caused by uncertain influence of renewable energy andelectric heating and cooling loads in the integrated energy system(IES)to realize integrated energy system optimaldispatch,a double-layer IES optimal dispatch strategy was proposed by combining the stochastic mode...
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Number of views:1726 Amount of downloads:3425
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LIU Xinglong,XIE Yihan,YANG Ziyang,ZHANG Zhilong,YI Hao,ZHUO Fang
Abstract:Active power filters(APF)are widely used for dynamic compensation of power system harmonic.However,under weak grid conditions,the interaction between APF,nonlinear loads and grid impedance can easily lead to the stability issue of harmonic oscillation around the compensation frequency,resulting in the fault...
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Number of views:1962 Amount of downloads:3417
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ZHANG Dewang,CHEN Zhigeng,ZHANG Zhichao,ZHOU Yu
Abstract: Traditional point prediction is difficult to analyze the randomness and uncertainty of wind powerinadequately. Aiming at the shortcomings of point prediction,an interval prediction model based on improvedwhale optimization algorithm and fast learning network(IWOA-FLN)was proposed. Firstly,the convergencesp...
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Number of views:3442 Amount of downloads:3415
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TIAN Kai,YU Zhibin,YUAN Yuan,CHU Zilin,SUN Chuanjie,YANG Jingran
Abstract: A fine dead-time compensation method based on the medium voltage three-level IGCT outputfiltering topology was proposed to realize the real-time calculation and compensation of the dead-time effect of theinverter output. Based on the topology of the output filter,the transfer function was established,and t...
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Number of views:3434 Amount of downloads:3404
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WANG Yubo,AN Yang,QIU Shuming,GAO Zhuoxuan,SUN Furun
Abstract:Inverter products have been developing towards higher power density and more compact structure.To enhance the power density of inverter systems within a limited structural space,several prototypes need to bemade and a large number of experiments conducted during the research and development process. To shor...
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Number of views:1728 Amount of downloads:3398
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FU Yang,SIMA Chao,TIAN Shuxin,CAI Pengcheng,GU Jiping,LIU Shu
Abstract: Expected fault screening of smart distribution network is an important basis for system security situation assessment. In order to comprehensively and accurately perceive the security risk of smart distributionnetwork,a micro-synchronous phasor measurement unit(μPMU)with real-time,synchronicity,accuracy an...
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Number of views:2537 Amount of downloads:3393
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SHEN Hangyu,FAN Xiaochao,SHI Ruijing,WANG Weiqing, WANG Haiyun,CHENG Zhijiang
Abstract: In order to solve the problem of heat dissipation in the process of producing hydrogen fromelectrolytic water and generating electricity from fuel cells,an independent photohydrogen fuel cell thermoelectriccombined supply system was designed according to the principle of water cooling heat dissipation betw...
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Number of views:2976 Amount of downloads:3393