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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...
更多Number of views：1183 Amount of downloads：1157
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WANG Yuhao，LIU Haitao，ZHU Kangkai，ZHONG Cong，MA Jiayi
Abstract：With the increased penetration rate of new energy year by year，it is difficult to accurately predictthe randomness and fluctuation characteristics of its output，causing a severe challenge to the operation，planningand scheduling of electrical power system. Therefore，modeling for the uncertainty of new energy...
更多Number of views：1182 Amount of downloads：1218
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YAO Yan，GAO Feilin，ZHOU Ziwang
Abstract: Aiming at the problems of increased network loss and node voltage deviation of the traditionaldistribution network after the distributed generations（DGs）is connected to the network，an optimization strategythat takes into account the reactive power output of DGs grid-connected inverter was proposed. Firstly...
更多Number of views：1180 Amount of downloads：984
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PENGTao
Abstract: The local leakage signal of high-voltage insulation equipment is weak and its characteristics are notobvious，which can only explain whether there is discharge. There is a phenomenon of missing judgment andmisjudgment in the actual positioning process，which is difficult to accurately locate the high-voltage...
更多Number of views：1177 Amount of downloads：912
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WANG Linfeng，XU Nan，NIE Jing，XIE Yantao，SONG Yan
Abstract: Investment estimate prediction model in traditional transmission line（TTL）project has problemssuch as large deviation from the actual cost and low efficiency of estimation management. Thus，a novel investmentestimate prediction model in TTL project was presented with assistance of principal component analys...
更多Number of views：1175 Amount of downloads：1198
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WANG Jiarong，DAI Guanghua，HU Liang，GAO Jingxiang
Abstract: In order to realize the application requirements of SiC power devices，a novel dual edge-triggeredisolated drive circuit was proposed. The circuit have the advantages of full isolation of driving signals，strongdriving ability，wide switching frequency range with 0 Hz～500 kHz signal transmission and strong of...
更多Number of views：1172 Amount of downloads：1131
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LONG Zhengyu，WANG Xuhong，FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning，painting，maintenance and other operations，therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency，a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
更多Number of views：1172 Amount of downloads：1124
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FAN Enze，LI Yaohua，GE Qiongxuan，ZHAO Lu
Abstract：Under digital control，the inner current loop of the LC-type inverter is affected by the control delay，which leads to the weakening of its active damping effect. Increasing the sampling control frequency can effectivelyreduce the negative influence of digital control delay. Furthermore，in order to suppress t...
更多Number of views：1167 Amount of downloads：1025
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YAN Yulin，XIAYankun，LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
更多Number of views：1162 Amount of downloads：1061
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WU Zhiheng，LIU Aimin
Abstract: The motor actuator used in circuit breaker has the advantages of simple structure，small dispersal ofaction and strong controllability，which provides the possibility for the switch contact of circuit breaker to followthe preset reference curve. The traditional control method can not adjust the parameters ac...
更多Number of views：1159 Amount of downloads：880
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LIU Lingshun，LI Yongheng，YAN Hongguang
Abstract: A nine-switch converter space vector pulse width modulation（SVPWM）algorithm was proposedbased on the dual Y shift 30° permanent magnet synchronous motor（PMSM）voltage vector. Compared with thebiggest four vectors of the twelve-switch converter SVPWM algorithm，the proposed algorithm not only reducesthree swi...
更多Number of views：1155 Amount of downloads：1070
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TAO Li，YANG Xiaxi，GU Jinhui，WEI Bingbing，ZHANG Lin，WANG Jianing
Abstract: Virtual power plant（VPP）can integrate distributed energy resource（DER）to participate in theoperation of power market and auxiliary service market，and provide management and auxiliary services fordistribution network and transmission network. Its operation and control have been widely concerned. Aiming at t...
更多Number of views：1151 Amount of downloads：985
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JIANG Jingwen，ZHOU Jiemin，HONG Feng，ZHENG Gang
Abstract: On the basis of LLC，considering from the perspectives of soft-switching technology，DC/DCcascade converter technology and three-level technology，a new DC/DC composite cascade structure topology onthe basis of Buck-LLC structure was proposed. A 980 W prototype was designed and built for verification，whichpro...
更多Number of views：1148 Amount of downloads：952
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LIU Fang，XU Yunyu，HE Guoqing，LI Guanghui，LIU Shiquan，LIU Wei
Abstract: With the increasing permeability of distributed generation，the grid becomes weaker and weaker. Itis very important to help the system achieve low voltage ride through（LVRT）when the grid voltage drops underweak grid. Aiming at a series of problems such as over-current，voltage collapse and system oscillation...
更多Number of views：1147 Amount of downloads：1093
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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...
更多Number of views：1144 Amount of downloads：954
