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MA Xiaoliang
Abstract: Several problems and their solutions of high-performance inverter-fed motor drive systems wereintroduced: the features and some matters needing attention of two- closed-loop systems; how to improve speedfollowing performance during starting and breaking and to improve anti-disturb ability by means of predicti...
更多Number of views：6168 Amount of downloads：3311
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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...
更多Number of views：379 Amount of downloads：464
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KONG Fanting，CHEN Jian，DI Meixian，FU Baoxin，WANG Jianquan
Abstract: Electric power system is becoming more and more power electronization with each passing day，additional losses of the power grid caused by the power quality problem is becoming more and more serious witheach passing day. Solving the power quality problem has become the new way to help the power grid to save...
更多Number of views：652 Amount of downloads：641
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JIN Yongchun，CHEN Li，ZOU Yusheng，DUAN Chengwu，YAO Jian
Abstract: Due to the advantages of high efficiency，wide speed range，high torque density and great controlperformance，permanent magnet synchronous motors（PMSM）have been widely used in driving systems of electric vehicles（EVs）. However，as the increase of power density，the problem of temperature rise caused by loss hea...
更多Number of views：1856 Amount of downloads：1172
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ZHENG Xiaoyong，DENG Jinxiang，HU Ren，WANG Hong
Abstract: Brushless DC motor has been widely used in the market because of its long life，high reliability andhigh torque. The sensorless control method can avoid a series of problems caused by the position sensor and furtherexpand the application of the brushless DC motor. Compared with the traditional sensorless co...
更多Number of views：1785 Amount of downloads：1108
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LIN Xin，GAO Xiang，XIE Zhen，XU Kebao，ZHANG Xing
Abstract: With the increasing proportion of wind turbines，the characteristics of low inertia and weak dampingpower grid become more obvious，which brings new challenges to the smooth operation of power grid. Traditionalcurrent-controlled strategy is difficult to obtain accurate grid synchronization information in wea...
更多Number of views：2062 Amount of downloads：1222
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WANG Xiaoyang，ZHAO Jinbin，ZHU Yuxin
Abstract: With more and more renewable energy devices and loads connected to the traditional power grid bypower electronic equipment，the negative resistance characteristics of power electronic equipment lead to the weakinertia characteristics of high power electronic power systems. Therefore，the stability of the mul...
更多Number of views：2373 Amount of downloads：1424
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ZHOU Jinghua，YAN Tianle，GUO Leixuan，ZHANG Xiaowei
Abstract: With the high penetration rate of new energy power generation in microgrids and the application ofhigh proportion of power electronic equipment，coupled with the access of a wide variety of loads such as unbalanced and non-linear loads and energy storage device，the power quality problems in microgrids have ...
更多Number of views：2465 Amount of downloads：1508
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MA Xiaolu，WANG Zhixiong，DUAN Yanmin，ZHANG Lei，WU Yi，QI Zhuoya，HOU Jue
Abstract: The significance of promote high-efficiency motor and motor system in China was analyzed bymeans of literature research，questionnaire survey and enterprise survey. Policies and measures for the promotion of high-efficiency motors and motor systems were sorted out. Conduct market research on high-efficiency...
更多Number of views：2405 Amount of downloads：1340
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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：2915 Amount of downloads：1587
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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...
更多Number of views：3654 Amount of downloads：1796
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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...
更多Number of views：4072 Amount of downloads：2117
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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...
更多Number of views：4067 Amount of downloads：2102
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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...
更多Number of views：4105 Amount of downloads：2181
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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...
更多Number of views：4108 Amount of downloads：2211
