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FU Xuhui,FANG Chun'en,XUE Tao,HUANG Leichao,CHEN Junping
Abstract: In order to ensure that the thyristor valve body can be accurately conducted during the solid state switch switching,a solid state switch trigger control unit was designed. Firstly,the structure and working principle of the solid state switch and the structure and function of the trigger control unit were ...
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Number of views:3710 Amount of downloads:1510
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ZHOU Jiabin,CHEN Yufe,GU Zhaoliang,YONG Jun,ZHAO Wenbin,JIANG Pengliang
Abstract: The influence of magnetic bias current on the excitation characteristics of near-field transformers inthe DC grounding electrode from bipolar to unipolar earth mode was discussed. Based on the principle of field-circuit coupling,the DC magnetic bias co-simulation model of transformer was established and an...
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Number of views:3707 Amount of downloads:1630
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HU Bo,YANG Chao,TIAN Xiaolei,LI Yunlu,YANG Junyou,CUI Jia
Abstract: When the internal parameters and topology of grid-connected power converter is unknown in somepractical applications,the existing frequency scanning based impedance modeling method can only maintain thedynamic equivalence at one operating point. To ensure the effectiveness of dynamic model in a wide operat...
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Number of views:3680 Amount of downloads:1608
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FU Wenqi,HUANG Yongzhang,YANG Xin,GUAN Fei,GU Yujun
Abstract: The integration of large-scale renewable energy source causes the reduction of rotational inertia inpower systems. A motor-generator pair(MGP)can provide a real inertial response(IR)capability without delay forrenewable energy generations. The electrical-mechanical model of the MGP was established based on...
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Number of views:3679 Amount of downloads:1584
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GAO Fengliang,HUANG Xiongfeng,FAN Hongxing,ZHANG Xuankun
Abstract: The failure rate of IGBT devices caused by excessively high temperature is as high as 55%.Improving the heat dissipation efficiency of the heat sink is the basis for ensuring the safe and reliable operation ofIGBT devices. Through theoretical analysis of IGBT module water cooling and heat dissipation,a tem...
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Number of views:3670 Amount of downloads:1592
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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:3665 Amount of downloads:1489
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LIU Xiaodong,SUN Lunan,LIU Yawei,GUAN Peng,RONG Xifeng
Abstract: In order to meet the needs of the testing laboratory's task scheduling and process design functions,the new applications were developed based on the existing laboratory information management system,such asscheduling system and process designer. According to the type and priority of the test task,the t...
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Number of views:3663 Amount of downloads:1469
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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:3658 Amount of downloads:1420
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ZENG Xiaotong,WANG Rongmao
Abstract: The Vce method and the Vth method are two recommended junction temperature measurement methods in the IGBT thermal resistance test standard. However,the relationship and equivalence of the junction temperature measured by the two methods are not explained. Firstly,the voltage composition of Vce and Vth was...
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Number of views:3653 Amount of downloads:2060
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MAO Shufan
Abstract: An automatic compensation method was presented based on adaptive capacitance regulationtechnology and the principle of controlling capacitor charging and discharging voltage. Based on the turn off ability of the self-turn off device,a switch circuit composed of two self-turning off devices connected in rev...
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Number of views:3652 Amount of downloads:1681
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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:3652 Amount of downloads:1502
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SUN Lihua,ZHANG Lin,SUN Huiqin,GUO Yingjun,LI Zheng,GUO Tianliang
Abstract: The switched reluctance motor control system for electric vehicles includes motor drive and batterycharging circuit,which reduces system integration and power density. Based on the asymmetric half-bridge powerconverter of switched reluctance motor,an integrated power converter for electric vehicle was desi...
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Number of views:3648 Amount of downloads:1526
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LIU Dongchao,XIONG Muwen,GAO Sen,ZHAO Senlin,ZHU Herong,LI Haitao
Abstract: Different types of partial discharge (PD) in gas insulated switchgear (GIS) cause different damage toGIS insulation. Correctly identifying the type of partial discharge is very important to evaluate the insulation statusof GIS. In order to simplify the process of feature extraction and improve the recognit...
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Number of views:3626 Amount of downloads:1545
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HU Changsheng,LI Yang,SHAN Qiang,LIU Hui
Abstract: The fault-tolerant control of active power filter(APF)has component redundancy,which leads to the increase of fault-tolerant control error,the decrease of execution efficiency and fault-tolerant rate. Aiming at these problems,a fault-tolerant control method ofAPF based on component redundancy was proposed....
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Number of views:3612 Amount of downloads:1549
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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:3611 Amount of downloads:1610