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LIU Juan,HU Xiaolei,TENG Yiyina,ZHANG Shiqi,ZHANG Zhe
Abstract: Hydrogen fuel cells air compressor is an important accessory of hydrogen fuel cell,but the high costcaused by its high energy consumption hinders the further development of hydrogen fuel cell. In recent years,theindustry has gradually adopted variable frequency drives to control the operation of hydrogen f...
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Number of views:2641 Amount of downloads:7135
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ZHA Haitao,XU Kexin,LI Xiaowen,LIU Bin
Abstract: Active power filter(APF)is one of the main ways to eliminate harmonic quality problems in powergrid,and LCL filter is commonly used to connect APF to power grid. In order to suppress the resonance problemcaused by LCL filter,active damping based on capacitor current feedback is a common method. Active damp...
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Number of views:2617 Amount of downloads:4580
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LI Linwei,FU Zhimin,CHEN Mingfan,HE Lipeng,QIN Dan,HUANG Lige,CHENG Xi
Abstract: With the opening of the electricity market,the scattered and high idle rate of distributed energystorage has realistic conditions to participate in the aggregation and reuse,and the aggregation process caneffectively improve the efficiency of the power grid. The electric vehicles were taken as a typical re...
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Number of views:2605 Amount of downloads:4041
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WANG Xuming,LUO Cheng,XIONG Zhi,YANG Kai,XU Zhijie,LI Yinbin
Abstract:In response to the complex working environment of pumped storage energy units,wheredisturbances such as temperature variations are prominent,and considering the insufficient control precision oftraditional vector control for brushless doubly-fed machine(BDFM),a study was conducted on a control strategybased...
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Number of views:2596 Amount of downloads:5936
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WANG Chengliang,PAN Zhixin,ZHAI Xuefeng,XIAO Yuhua,LIU Yu
Abstract: The mathematical model of magnetic coupled resonant wireless power transfer(MCR-WPT)system based on LCC-S compensation topology was established. Meanwhile,the influence on the transmissionperformance of the system was analyzed from three aspects:operating frequency,compensating inductance andload impedance...
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Number of views:2579 Amount of downloads:3896
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YUAN Minxin,YIN Zhonggang,LUO Peien,ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor(IGBT)of the permanent magnet synchronousmotor(PMSM)drive system,an error current polarity method based on model predictive current control(M...
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Number of views:2571 Amount of downloads:7683
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ZHANG Guoqiang,NIU Ben,YANG Hua,WANG Gaolin,XU Dianguo
Abstract: Maximum torque per ampere(MTPA)control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor(PMSM). In the sensorless drivesystem,the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
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Number of views:2568 Amount of downloads:7589
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WANG Shixin,YU Bo,YUAN Yong,SI Guolei,DAI Jin,CAO Taiqiang
Abstract: Electric valve regulation requires fast response speed,high precision control,no overshoot andstrong anti-interference performance. An active disturbance rejection algorithm based on feedforward compensation was used to control the brushless DC motor(BLDC),and the position error was taken as the input of t...
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Number of views:2533 Amount of downloads:3863
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YAN Chengshan,QIU Mingquan,ZHANG Lijun,GUO Qi,WANG Chunlei,JIN Wenxing
Abstract: A voltage stability control strategy for DC microgrid based on muti-group energy storage unitdynamatic regulation was proposed. Due to the volatility of the new energy,and in order to improve the powersupply reliability of the energy storage system,the multi-group energy storage equipped with a certain con...
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Number of views:2531 Amount of downloads:4586
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CHEN Weikang,WANG Haixin,ZHANG Zhiyong,CHEN Zhenyu,SHEN Jie
Abstract:Flux-weakening control technology can effectively broaden the speed range of the permanentmagnet synchronous machine(PMSM),therefore,it is of great significance to the research on the flux-weakening control of permanent magnet synchronous machine. Most of flux-weakening modified the flux-weakening current c...
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Number of views:2528 Amount of downloads:7157
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GU Jiming,SONG Yunting,LIU Xinyu,ZHU Shaoxuan,LEI Yu,ZHANG Tongzun
Abstract:Under the dual carbon background of AC and DC hybrid power grids have the new feature of"strong HVDC and weak AC system" and power electronization,in order to effectively reduce the risk of largescalepower outages in power grid,it is necessary to build a secure and reliable comprehensive defense system toen...
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Number of views:2522 Amount of downloads:6085
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LIU Tong,YIN Zhonggang,BAI Cong,YUAN Dongsheng
Abstract: In order to improve the position sensorless control performance of permanent magnet synchronouslinear motor(PMSLM),a position sensorless control method based on disturbance compensated flux observer(DCFO)was studied. This method treats the notch filter as a disturbance observer and combines it with a feedb...
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Number of views:2516 Amount of downloads:7673
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ZHAO Jingjing,CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high,and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
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Number of views:2511 Amount of downloads:5391
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LIU Huichen,LI Zhen,SU Weifeng,YUWEN Bo,LI Haitao,ZHANG Zhenbin
Abstract: In the long cable driven induction motor drive systems,speed sensorless control is usually adopteddue to the long distance between the controller and the motor. In addition,long cable increases the stator sideimpedance of the induction motor,especially the equivalent stator resistance by an order of magnit...
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Number of views:2507 Amount of downloads:6389
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GU Zhen,ZHUANG Gewei,HE Qing,ZHOU Lei,AN Bailong,DUAN Yan
Abstract: Accurate identification method of abnormal electricity users can provide reference for power supplyenterprises to lock in electricity theft or other violations of power users. Most abnormal user identification modelsbased on machine learning adopt unsupervised algorithms,but the accuracy of the models is l...
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Number of views:2488 Amount of downloads:3773