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LI Yanlei,ZHANG Xiaoyang,LI Xiaoling,LIU Wei,WANG Gang,ZHOU Gaowei
Abstract: Because traditional methods have problems such as poor control stability and low control efficiencyin the process of using unmanned aerial vehicle(UAV)to check obstacles in transmission channels,a transmissionchannel unmanned aerial vehicle motor auto-disturbance rejection control technology based on extre...
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Number of views:2465 Amount of downloads:1087
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SUN Chuanjie,TIAN Kai,YANG Jingran,CHU Zilin,MA Jie
Abstract: A high-power high-frequency power supply was designed for test requirements of some specialelectrical equipment. In the power supply,cascaded H-bridge was adopted to form five-level topology structure,the integrated modulation method was adopted,including bipolar PWM modulation,carrier phase-shifted SPWMmo...
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Number of views:2370 Amount of downloads:1083
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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:1937 Amount of downloads:1081
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WU Ming,LÜ Zhipeng,WANG Xin,YANG Wanli,ZHOU Shan,LIU Xiaojuan
Abstract: Multi-energy complementary DC micro-grid is of great significance to achieve sustainable energydevelopment. Based on the typical DC micro-grid with various energy forms including wind,solar,gas and battery,a multi-energy DC micro-grid operation control strategy considering the complementary inertia of gas ...
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Number of views:2838 Amount of downloads:1081
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DING Qiang,JIANG Yingxu,NI Tuocheng
Abstract: Firstly,the radial force mathematical model of central winding bearingless slice permanent magnetmotors was built. Subsequently,parameters tuning theory of displacement loop PID controller for bearingless motor suspension system was studied,and its inherent drawbacks of PID controller when used for bearing...
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Number of views:2118 Amount of downloads:1070
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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:1798 Amount of downloads:1068
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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:2811 Amount of downloads:1068
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LUO Lan,WANG Yuhong,SONG Ruihua,BI Jingtian,CHEN Shiyu,WAN Liangbin
Abstract: In the multi terminal flexible direct current(DC)transmission system,the flexible direct inner andouter loop control can not provide inertial support for the receiving end passive network. Traditional virtualsynchronous generator(TVSG)control can provide inertia support for passive network,but it can only ...
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Number of views:2376 Amount of downloads:1065
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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:2749 Amount of downloads:1065
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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:2450 Amount of downloads:1064
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DAI Yemin,LI Yukun,LIN Shunfu,BIAN Xiaoyan,LI Dongdong
Abstract: With the wide application of new energy grid connection technology,a large number of powerelectronic devices are connected to the power grid,and the power quality is affected by harmonic interaction. Aiming at the harmonic interaction problem of multi-inverter grid-connected system,the multi-input and mult...
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Number of views:2702 Amount of downloads:1064
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YANG Xinai,LI Bingran
Abstract: A dispatchable droop control method for multiple distributed generators which can be applied inislanded AC microgrids was proposed. In the proposed method,the first-order inertia elements was utilized toachieve pseudo hierarchical control so that the distributed generator(DG)could share the load automatica...
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Number of views:2760 Amount of downloads:1062
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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:2654 Amount of downloads:1061
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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:2727 Amount of downloads:1061
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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:1873 Amount of downloads:1060