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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:4936 Amount of downloads:5741
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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:4934 Amount of downloads:5253
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LIU Jinchao,DUAN Hongmin,WU Letao,LIU Ligang,XU Chao
Abstract: Aiming at the phenomenon of pressure relief and deflagration caused by the faults of oil-immersedtransformer,a logic was proposed that the transformer can keep self-maintained running when faults occurred,and according to the logic,a scheme of oil circuit equipment was designed. The above logic and the sch...
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Number of views:4931 Amount of downloads:4577
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LI Xuan,DONG Yongle,HAI Hongye,JIN Zhao
Abstract: Under the background of smart grid,higher requirements are put forward for the management level of distribution network,and the traditional static model can not meet the application requirements of refined line loss and real-time scheduling. Based on low-voltage power grid topology identification and broad...
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Number of views:4929 Amount of downloads:6089
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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:4927 Amount of downloads:4297
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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:4915 Amount of downloads:6049
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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:4911 Amount of downloads:5764
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MA Tao,XIAO Zhiyun,ZHANG Yonghong,DAI Zehui,WANG Zhiqiang
Abstract: In order to improve the reliability of LCL-filtered grid-connected three-phase inverter when using asliding mode controller,a novel sliding mode control strategy with less sensors in the abc natural frame was designed.Firstly,the sliding surface functions of phase a and phase b in the abc natural frame wer...
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Number of views:4887 Amount of downloads:5905
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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:4882 Amount of downloads:5597
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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:4880 Amount of downloads:5685
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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:4857 Amount of downloads:5803
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CHEN Lu,WANG Can,HU Hao,ZHOUYANG Junran,YANG Wentao,MA Xin
Abstract: With the increasing utilization rate of electric vehicles(EVs)in China,high permeability EVs makethe three-phase imbalance rate of urban distribution network increase day by day,which causes problems such asvoltage fluctuation and network loss increase,and the distribution network with high three-phase imb...
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Number of views:4839 Amount of downloads:6419
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GU Ming,XING Meng,GE Xianjun
Abstract: Aiming at the complex problem of weight factors tuning when the induction motor driving systemadopts the finite set model predictive control,an optimal finite set model predictive controller without weightdistribution for induction motor driving system was designed. In the new scheme,the form of sequential...
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Number of views:4834 Amount of downloads:5269
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FU Lulu,ZHAO Hong
Abstract: The classical model prediction algorithm of three-level grid-connected converter has manydisadvantages,such as large computation,unfixed switching frequency and difficulty in selecting weight factors,which limit its development in grid-connected converter field. To solve above problems,a modified control a...
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Number of views:4831 Amount of downloads:6209
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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:4815 Amount of downloads:5681