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YU Zhongan，CHEN Miao，DING Wensu，LIN Shangrong
Abstract: The traveling wave fault location of traditional double-circuit transmission lines are mainly studiedon the model with symmetric parameters. In order to solve the problem of traveling wave fault location of doublecircuit lines on the same tower with asymmetric parameters in engineering practice，a fault loc...
更多Number of views：4057 Amount of downloads：9178
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YANG Chengshun，LIU Guofu，DAI Yuchen，ZHANG Dongdong，HUANG Xiaoning
Abstract: An adaptive cooperative control strategy based on improved virtual synchronous machine（VSM）technology was used to improve the traction power supply system of urban rail transit. Firstly，the improved VSMwas used as an one-time control to make the urban rail trains have the external characteristics of synchr...
更多Number of views：10728 Amount of downloads：28904
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ZHANG Yubo，LIU Xu，CAO Yang
Abstract: The hybrid excited segmental rotor flux switching permanent magnet（HESRFSPM）machine basedon eccentric pole was proposed. Under the condition of constant air gap area，the segmental rotor structure based on eccentric pole can reduce 2，4，10 radial air gap flux density space harmonic amplitudes by comparing ai...
更多Number of views：5255 Amount of downloads：10452
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ZHANG Yexin，DENG Yunchuan，LIU Zhigang，ZHANG Yuting，CHEN Tao，HUANG Ke
Abstract: When the high-speed electric multiple units（EMUs）pass through the long downslope route，speedlimit is required to meet the safety of train operation，the regenerative braking energy generated in this process isreturned to the traction network and may threaten the safety of power supply. At present，there are ...
更多Number of views：5090 Amount of downloads：10528
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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...
更多Number of views：5242 Amount of downloads：10076
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YAN Yuhao，ZHOU Buxiang，CHEN Shi，DONG Shen，LIU Zhifan，ZANG Tianlei
Abstract: At present，the focus of research on doubly fed induction generator（DFIG）high voltage ride through is a single high voltage fault.However，after DFIG low voltage ride through，due to the irrationality of the reactive power compensation strategy，a low/high voltage compound fault have be caused，which have a cer...
更多Number of views：5345 Amount of downloads：12340
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ZHOU Zhen，PENG Yuanxiu，LIU Bin，LI Xiaowen，ZHA Haitao
Abstract: In the isolated island operation mode of microgrid，the output power of distributed generation unitsin the system is difficult to distribute reasonably due to the difference of output line impedance，which affects thestability of the system. In order to realize the reasonable distribution of power according ...
更多Number of views：5104 Amount of downloads：11254
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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...
更多Number of views：5173 Amount of downloads：9652
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LÜ Wei，WANG Han，ZHANG Jianwen，CHEN Gen，CAI Xu
Abstract: Compared with onshore wind power，the natural conditions at sea are bad and the traffic isinconvenient to maintain the wind power system，so wind power system needs to be highly reliable. The systemreliability can be effectively improved by using fault-tolerant control. A fault-tolerant control strategy by i...
更多Number of views：4793 Amount of downloads：11417
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GU Zhongfan，CHENYuwei，LI Cheng′ao，ZHANG Dechun，HUANG Hai
Abstract: The 3.5 V/20 A•h lithium iron phosphate battery was taken as the research object.Aiming at the onlineestimation of its state of charge（SOC），the second-order Thevenin equivalent RC circuit model was established，and a joint SOC estimation algorithm was proposed by combining BP neural network，dynamic forgetti...
更多Number of views：10972 Amount of downloads：27542
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SHAYuheng，MEI Xin，LAN Jiao，HAN Fangxu，ZHAO Xuechen
Abstract: In view of the problems that the lack of unified data source，unified information standard，unifiedsupport platform for common services caused by multi system parallel in each stage of power grid enterprise projectmanagement，and resource and information "isolated island" caused by "chimney" system architectu...
更多Number of views：4884 Amount of downloads：11660
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YANG Shihua，CAO Jun，CHEN Liang，CUI Bo，YU Long
Abstract: In order to solve the problems of large calibration error and model reconstruction failure in theoperation of traditional coaling instrument，an improved calibration algorithm based on direct linear transformation model and an improved 3D reconstruction algorithm based on time-of-flight method were proposed...
更多Number of views：4693 Amount of downloads：8891
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CUI Kaishun，ZHU Lan，WEI Linlin，TIAN Zeqing，LI Xiaojun
Abstract: Demand response to meet the power balance between supply and demand in the new generationresources without investing. The achievement of China's carbon neutrality goal by 2060 will surely bring aboutprofound changes in the structure of energy supply and demand. The effective development of demand-side ...
更多Number of views：6353 Amount of downloads：13218
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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...
更多Number of views：4900 Amount of downloads：9549
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CAI Chunchen，MAO Xuefei，ZHAO Lei，CHEN Zhen，LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low，which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor，a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First，the tw...
更多Number of views：4806 Amount of downloads：10527
