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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:2197 Amount of downloads:1283
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CHENG Zhiyuan,WU Longfei,LI Zheng,SUI Licheng,WU Xiaoting
Abstract: Current transformer(CT)inductive energy extraction is the most effective power supply method foronline monitoring equipment of power transmission cables. However,the low current of the transmission cable willcause the CT to fail to obtain energy,which will lead to the occurrence of equipment energy supply ...
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Number of views:2727 Amount of downloads:1280
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REN Wei,ZHAI Bohao,PENG Weisong
Abstract: With the improvement of computer operation level,data-driven technology is widely used inmetallurgical industry. Accurate prediction of rolling force is helpful to shorten the length of strip head and tail andimprove the yield of strip. In order to solve the problem of low prediction accuracy of data-drive...
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Number of views:2994 Amount of downloads:1272
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CHEN Qun,ZHOU Jiemin,HONG Feng,ZHENG Gang,XI Zhiyang
Abstract: The solid-state power controller,which integrates the functions of traditional power distributiondevices such as circuit breakers and relays,is the core component of the all-electric aerospace vehicle powerdistribution system.Among them,the inverse time overcurrent protection technology is one of the key t...
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Number of views:2089 Amount of downloads:1268
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GUO Leilei,ZHU Linqiang,CAO Lingzhi,LI Yanyan,WANG Pengshuai
Abstract: The accurate estimation of rotor angle is an important prerequisite for realizing speed sensorless highperformance vector control of permanent magnet synchronous wind generator. In the speed sensorless control ofpermanent magnet synchronous wind generator based on disturbance observer,the traditional angle...
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Number of views:2199 Amount of downloads:1268
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TIAN Kai,YUAN Yuan,YU Zhibin,JIANG Yida,LI Nan,SONG Peng
Abstract: Three-level neutral-point balance method based on PWM pulse width dynamic regulation wasproposed to realize optimized PWM high-performance closed-loop control and three-level neutral-point balancecontrol of the inverter at low switching frequency. The fundamental current component was extracted from thecur...
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Number of views:2279 Amount of downloads:1264
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HUANG Xu,LIU Yichao,ZHU Hanqing,LIU Yang
Abstract: The DC fault current calculation method of modular multilevel converter(MMC)is the key to studythe DC fault transient characteristics and isolate the fault point rapidly in VSC-HVDC grid. Firstly,aiming at twotypical MMC fault equivalent models,the topology and the capacitor voltage characteristics when th...
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Number of views:2934 Amount of downloads:1262
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YANG Fan,HUANG He,LI Haiying,LI Dongdong,ZHAO Yao
Abstract: There are a lot of equipment operation rules in power equipment defect text,which can be mined bynatural language processing technology to provide guidance for equipment maintenance. Aiming at this situation,a defect text mining method based on enhanced representation through knowledge integration(ERNIE)pr...
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Number of views:3037 Amount of downloads:1262
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MA Bingtai,LIU Haitao,HAO Sipeng,LU heng,ZHANG Chengyu
Abstract: In photovoltaic and hybrid energy storage system,variational mode decomposition(VMD)iscommonly used to realize the distribution of system residual power,but the number of decomposed modes andsecondary penalty factor value affect the error of power reconstruction directly,and the inertia weight error ofcomm...
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Number of views:1034 Amount of downloads:1257
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CHEN Guoping,WANG Juan,LIANG Zhen,ZHANG Zhiyu,BAI Haibin,SUN Qianhao
Abstract: The full fault-blocking converter(FFBC)-based DC power distribution network is an importantdirection of the power system with source-load-storage interaction. Since there is no DC breaker in FFBC-DCpower distribution network,the start-up,mode switching and fault handling control strategies of FFBC-DC power...
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Number of views:1708 Amount of downloads:1248
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FAN Zhenning,SU Qiang,ZHANG Xinmin,ZHAO Changwei,XU Ke
Abstract: The control strategy of flexible multi-state switch(FMS)is a key technical challenge to ensure its highefficiency,reliability and flexibility. In order to solve the problems that the parameter design of proportional resonant (PR)controller is complicated and is greatly affected by grid frequency disturbanc...
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Number of views:3205 Amount of downloads:1248
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ZHANG Ao,DAI Linwang,MA Zhengyang,LI Shaolin,ZHANG Xueguang
Abstract: Doubly-fed wind turbine is easy to produce sub-synchronous oscillation in series compensation grid.Using virtual synchronous control structure to improve inertia and damping for grid may also lead to subsynchronous oscillation risk. In view of the causes of sub-synchronous oscillation,firstly,the double-fe...
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Number of views:2173 Amount of downloads:1245
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YAN Hao,BA Sang,GU Yi
Abstract: Insulation failure can cause motor turn-to-turn,phase-to-ground and ground-to-ground faults,ranging from equipment downtime,or endangering personal safety,resulting in catastrophic consequences. In order to be able to carry out online sensitive monitoring of the deterioration state in the early stage of tu...
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Number of views:3314 Amount of downloads:1242
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FANG Biwu,XIAO Liang ,SUN Cheng,CHEN Yiping,XUE Yanjun,ZHANG Deliang
Abstract: In order to improve the absorption capacity of clean energy and make full use of the peak regulationresources of each province,the peak regulation capacity of different types of power sources was studied,and aregional power grid optimization dispatching method considering the mutual aid of peak regulation ...
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Number of views:3113 Amount of downloads:1236
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HUANG Heyao,WANG Luyang,WU Jiaming,BAI Yang,DING Quan,BAI Hongshan
Abstract: Virtual synchronous generator technology can provide virtual inertia for the frequency stability ofmicrogrid,but there are a lot of asymmetric loads in the operation of microgrid. In order to compensate theunbalanced load and output three-phase symmetrical voltage and current,an improved control strategy b...
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Number of views:3051 Amount of downloads:1235