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WANG Zhifu,SUN Qingle,LI Haolong,WANG Xu,GUO Yifeng,LIANG Changchun,WANG Rui
Abstract: With the development of motor drive system of new energy vehicle and the increase in complexity and integration,testing of motor drive system has become an important part of vehicle development. But high-power motor drive testing is more difficult and has higher risks,especially for motor control system,tr...
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Number of views:5816 Amount of downloads:5354
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XIAO Jiakai,ZHENG Gaofeng,LIU Pengxi,LIN Deqiang
Abstract: At present, high-speed electric machines (HSEMs) have been widely used in many industrial fields. The development status and future research directions of high speed motors were summarized and discussed. Firstly, the latest research progress of different types of high-speed motors was introduced, and the ch...
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Number of views:5569 Amount of downloads:4599
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YANG Zhenshu,SUN Xiaozhe,YANG Jianzhong,MAO Qi
Abstract: The fault diagnosis technology of the flight electromechanical actuation system is of greatsignificance to improve the reliability of the aircraft actuation system and ensure the safe operation of the aircraft.Considering the problems and challenges encountered in the application of fault diagnosis technol...
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Number of views:5553 Amount of downloads:4304
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CHEN Ya′ai,LI Zixuan,ZHOU Jinghua,WU Jiewei
Abstract: As a three-level Boost AC/DC converter with unidirectional energy flow,the VIENNA rectifier iswidely used in electric vehicle charging systems and other occasions. The key to improve the power quality and thesystem reliability is the quality of control strategy. Therefore,the control strategy of the VIENNA ...
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Number of views:5531 Amount of downloads:4387
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MA Xiaoliang
Abstract: Pump-turbine units are kind of hydropower facilities with both pump and power generation abilities,they are used mainly in pumped-storage plants and also in water-managing projects. Conventional units operate withfixed-speed. To make power control quick and flexible and to extend operation ranges of turbine...
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Number of views:5446 Amount of downloads:4644
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CAO Wei,DONG Haoyang,LI Yun,WEI Huangli,GAO Shengkai
Abstract: The proportion of distributed photovoltaic connected to the grid is gradually increasing,which bringsa series of problems,it can draw lessons from foreign experience to provide practical reference for solving relevantproblems. As one of the leading countries of energy transformation in Europe,Germany's ex...
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Number of views:5276 Amount of downloads:4297
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CHEN Ya′ai,HONG Yinan,ZHOU Jinghua,ZHAO Junwei
Abstract: Cascaded energy storage power conversion system is widely used in high voltage and large capacityoccasions,it plays a role of peak shaving and valley filling for power system,its control strategy directly affects theperformance and reliability of energy storage system. Therefore,in recent years,the research...
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Number of views:5255 Amount of downloads:4114
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CHEN Yaai,ZHAO Junwei,ZHOU Jinghua,ZHAO Xun
Abstract:Flexible substation based on AC/DC hybrid power distribution technology is a major trend for futuredistribution network development.It has attracted wide attention due to multiple functions such as itsmultiterminal interfaces for medium/low and AC/DC voltage flexible power flow control multi-modal energy inter...
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Number of views:5230 Amount of downloads:3966
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RONG Zhenshuai,CHI Yingchao,SUN Zhan,WANG Yijie,XU Dianguo
Abstract: The arrival of the 5G era has put forward higher requirements for the power system,that is,theconverter is required to have high efficiency,high power density,and rapid dynamic response. In response to thisproblem,the third generation of wide bandgap semiconductor device gallium nitride(GaN)transistors was...
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Number of views:5136 Amount of downloads:3998
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ZHAO Chaokun,YAN Tao,ZHOU Jiachao,YUAN Zhanwei,MENG Pu
Abstract: The AMK servo control system is widely used in cigarette machine equipment like German Protos-M5 and local product ZJ116. But its failure parts repaired could not be guaranteed to operate safely and reliably. Ifthose parts are replaced frequently,the efficiency of the equipment will be seriously impact. To...
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Number of views:5134 Amount of downloads:17668
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SONG Wenxiang,REN Hang
Abstract: Six phase inverter provides abundant voltage vector resources for dual three-phase permanentmagnet synchronous motor,which can make predictive current control more accurate. However,more voltagevectors cause the problem of too much calculation. At the same time,the harmonic current of dual three-phase motor...
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Number of views:5104 Amount of downloads:4194
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YU Jia,Wang Xiaorong,Dai Yuesheng,LI Xuan
Abstract: With the advance of smart power grid construction,the terminal laying rate of intelligent acquisitionequipment has been greatly improved,and the demand-side terminal electrification has become an irreversible trend.In recent years,the problems of users' default power supply and private overlapped lines...
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Number of views:5102 Amount of downloads:3848
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ZHENG Weijie, SUN Tianfu, LAI Yueshen, SHANG Yaceng
Abstract: Aiming at the problem that the low-speed sensorless control system of interior permanent magnetsynchronous motor (IPMSM) based on high-frequency voltage signal injection method cannot identify the initialposition of the rotor, which causes the motor to start up difficultly, a starting strategy of IPMSM was ...
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Number of views:5081 Amount of downloads:3986
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YIN Jianqiang,WU Xianming,WU Fengzhi,YANG Peihao
Abstract: The sensorless control of PMSM based on control algorithm is a research hotspot in the field ofmotor control. A PMSM sensorless control system based on low-speed pulse and high-frequency stator flux injectionwas proposed,and the traditional stator flux estimator was improved and the high-frequency signal wa...
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Number of views:5002 Amount of downloads:4441
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CAO Xinping, YIN Zhonggang, ZHANG Yanping, ZHANG Yanqing
Abstract: Aiming at the problems of chattering and poor observation accuracy of traditional full order slidingmode observer (FSMO), a sensorless control strategy of interior permanent magnet synchronous motor (IPMSM)based on improved full order sliding mode observer was proposed. In this strategy, the quasi-sign func...
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Number of views:4982 Amount of downloads:4647