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LUO Ke,WU Shuanglong,REN Chao,LIU Yuan
Abstract: Aiming at the electromagnetic noise problem of the permanent magnet synchronous motor for electric vehicle,the causes of noise were analyzed from the perspective of current harmonic and electromagnetic force. It has shown that current harmonics control is an effective method for motor electromagnetic noise...
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Number of views:5180 Amount of downloads:6923
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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...
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Number of views:5176 Amount of downloads:8855
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NIU Qian,ZHANG Dong,WANG Junlong
Abstract: Aiming at the problems of uneven power distribution and poor stability of grid AC/DC microgrid,anew adaptive coordinated control strategy was proposed to improve the stability and power distribution accuracy ofAC/DC microgrid(MGs)system.First,for converters connectingAC microgrids and DC microgrids,a contr...
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Number of views:5175 Amount of downloads:6509
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YIN Aihui,REN Ang,WU Xiaowen,HOU Jianfeng,FAN Yulin
Abstract: When fast voltage control is used in a power factor corrector(PFC),ripples on the DC side can cause grid current harmonics. To solve this problem,a novel DC voltage nonlinear PI control strategy was proposed,which could reduce the harmonic content of fast voltage closed-loop in power factor corrector. Base...
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Number of views:5175 Amount of downloads:5586
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LIU Mengmeng,LI Ruifang,MIAO Weili
Abstract: In order to optimize the controller structure of the permanent magnet synchronous motor(PMSM),a simplified speed control strategy for the PMSM based on genetic algorithm(GA)was proposed.The new controller mainly includes a direct voltage controller,which uses the motor model to achieve accurate speed track...
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Number of views:5170 Amount of downloads:5514
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CHEN Hu,WANG Yangyang,PAN Yuedou
Abstract: In order to overcome the drawback of direct torque control of induction motor which has largetorque ripples at low speed,a generalized predictive control method was proposed and be used in the direct torque control of induction motor. The method was directly used in speed control,and didn' t depend on ...
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Number of views:5160 Amount of downloads:6399
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SHI Zhibo,MENG Jie,HAN Yong,LI Xueping
Abstract: Due to the application of a large number of power electronic equipments on the aircraft,the aircraftpower supply network tends to be complicated,and thus there is an urgent need to effectively evaluate the powerquality of the power supply network. In order to evaluate AC power quality of aircraft,a compreh...
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Number of views:5160 Amount of downloads:5578
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PAN Ling,FENG Qian,ZHANG Peng,SHEN Bing,ZHOU Jian,CHEN Ran,ZHAO Jinshuai
Abstract: Due to the high cable ratio of city grid,the harmonic pollution is aggravated. For the buses with high harmonic voltage content,it is necessary to evaluate the harmonic emission level of the utility side and customer side. Most of the existing evaluation methods are based on two assumptions:1)the harmonic ...
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Number of views:5159 Amount of downloads:5964
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LI Dexiang,LU Jiayu,GE Wenqing,LI Bo,TAN Cao
Abstract: Aiming at the problems of high control performance and long design cycle of electromagnetic linearactuator control parameters,a multi-objective optimization design method of control parameters was proposed.Based on electromagnetic linear actuator system,a robust controller was designed. The controller para...
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Number of views:5148 Amount of downloads:6914
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YANG Zhaowen,YANG Guochao,LIU Jianjun,WANG Hongwei,BAI Xinyu
Abstract: A second order filtering power dividing frequency control strategy based on virtual impedance wasproposed. The different frequency power compensation among different storage units by building invisible passfilters was achieved. The invisible pass filters including high pass filter and low pass filters were...
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Number of views:5115 Amount of downloads:7191
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YANG Chongwei,LIANG Xu,MAO Lan
Abstract: After a large-scale and high proportion of photovoltaic power generation is connected to the lowvoltage distribution network system,it will most likely cause the system power flow reversal,resulting in the out of limit voltage of each node of the system and the increase of system loss. First,using the line...
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Number of views:5113 Amount of downloads:6952
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ZHAO Jianyong,ZHANG Zhenxiao,DING Yuanjie,YU Ziwei,HAN Junyao, WANG Shenghong,NIAN Heng,LI Xuerong
Abstract: Aiming at the problems of small regulation range and slow speed of traditional voltage regulators such as compensation capacitors in distribution network line voltage compensation,a voltage compensation scheme of distribution network in sparse area was proposed,the voltage hierarchical coordinated control ...
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Number of views:5095 Amount of downloads:6650
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CHEN Zhixiu,LIU Yang,ZHANG Hanshu,XIAYe,WANG Hao,LIU Xin
Abstract: In the period of high and new technology development,the application of SiC and other newsemiconductors promotes the development of PCB design toward integration and high efficiency. The new ideas were provided for PCB design optimization from two aspects of high frequency and high density. Among them,ther...
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Number of views:5076 Amount of downloads:7050
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SU Jichen
Abstract: Due to the low efficiency of data processing and high export delay of intelligent measurementequipment in substation engineering,the construction progress of substation engineering is slow. Therefore,the data batch export system of intelligent measurement equipment in substation engineering was designed. T...
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Number of views:5076 Amount of downloads:6870
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ZHANG Tingting,ZHAO Jinbin,DENG Ping,QU Keqing,ZHANG Junwei
Abstract: Aiming at the problems of low input voltage and high demand on driving voltage frequency andamplitude of the traffic sign power supply using smart electroluminescent(S.E.L)technology,a high rise ratio highfrequency inverter drive circuit based on the cascade connection of the Boost circuit with soft switch...
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Number of views:5050 Amount of downloads:7739