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CHEN Linghan,LU Jia
Abstract: As the hub node in the energy internet,the transformer can adjust and control power quality,thenormal and stable operation of transformer is of great significance to the safe and stable operation of the energyinternet. In order to accomplish this objective,status assessment of energy internet transformer b...
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Number of views:3596 Amount of downloads:6151
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DING Qiang,JIANG Yingxu,NI Tuocheng
Abstract: Firstly,the radial force mathematical model of central winding bearingless slice permanent magnetmotors was built. Subsequently,parameters tuning theory of displacement loop PID controller for bearingless motor suspension system was studied,and its inherent drawbacks of PID controller when used for bearing...
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Number of views:4253 Amount of downloads:6240
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WEI Wei,GE Qiongxuan,LI Yaohua,ZHAO Lu,ZHANG Bo
Abstract: The integrated gate commutated thyristor(IGCT)is an important element for efficient and reliableoperation of high power traction converters. The stability of high power converter system is significantly affected bythe voltage and current dynamic characteristics of the IGCT device during the turn-on and tur...
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Number of views:4116 Amount of downloads:6039
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MA Zhiyuan,HUANG Haihong
Abstract: With the increasing popularity of renewable energy sources such as photovoltaics and wind power,improving the reliability and stability of grid-connected system operation has become a key technology in thesystem. Affected by the dynamic characteristics of the grid,if the traditional droop control is still ...
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Number of views:3885 Amount of downloads:6992
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WEI Zhengyi,ZHANG Min,ZHOU Mingzhu,DING Xinping
Abstract: In practice,the parasitic parameters have a non-negligible effect on the performance of invertercircuit. The influence of the main parasitic parameters on a new type of switched-coupled-inductor quasi-Z-sourceinverter was studied. By the reasonable analysis of the influence of the parasitic parameters(para...
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Number of views:4125 Amount of downloads:7938
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YANG Shude1,ZENG Zikang,ZHANG Xinwen,GAO Xiongying,CAI Changhong,ZHOU Xin
Abstract: For the technical requirements of on-load voltage regulation based on power electronic switches,athyristor-based on-load voltage regulation unit topology was given based on the analysis of the possible conduction state of each switch in the steady state and the switching law of different states. Considerin...
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Number of views:4233 Amount of downloads:6315
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ZHANG Liuyang,XU Limei,HUANG Ying,WANG Yao
Abstract: In order to improve the load transient response speed of Buck LED constant current driver,acapacitive current ripple-controlled(CCRC) Buck LED constant current driver was proposed. Based on theoperating principle of Buck LED constant current driver,the state space averaging model of Buck LED constantcurren...
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Number of views:3942 Amount of downloads:7719
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ZHAO Ruochen,MEI Baishan,ZHANG Jinwei,FU Wenbo
Abstract: Active power filter(APF)has become an important measure for harmonic control because it cantrack and compensate reactive power and suppress harmonics adaptively,dynamicly,and in real time. APF wastaken as the research object,and on the premise of verifying the differential flatness of the system,a differen...
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Number of views:4047 Amount of downloads:7570
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LI Zhe,LI Chengyuan,YUAN Yuan,CHEN Yujie,WANG Ziman
Abstract: Insulated gate bipolar transistor(IGBT)is widely used in the industry,but the IGBT junctiontemperature is easily affected by changes in operating conditions and the heat dissipation environment in which it islocated. Poor heat dissipation channels will cause the IGBT module to remain in a high temperature ...
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Number of views:3906 Amount of downloads:6891
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YUE Yuanyuan,ZHANG Chao,YUAN Xingzhong,ZHU Anming, HUANG Zongjun,JIANG Bo,ZHANG Yuhan
Abstract: The spatial load of multi-power distribution network is easy to overload,which leads to thereduction of distribution network planning stability. A dynamic planning and optimization method of multi-powerdistribution network considering the spatial load layout was proposed. According to the equivalent topolo...
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Number of views:3629 Amount of downloads:6146
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ZHANG Hao,WANG Xuanyuan,NING Bo,LIU Zhen,LIUYa,HUANG Hongwei
Abstract: In order to improve the actual utility of power electricity package decision and avoid the default riskcaused by blind choice,the response stability of power users according to their purchase contract was studied ,apeak-valley power electricity package decision-making method considering response stability ...
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Number of views:4103 Amount of downloads:6194
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YANG Liping,WANG Haiyun,DING Dong,YU Xijuan,WANG Liyong,WU Honglin
Abstract: At present,there are some problems in line loss fault detection of electric quantity informationacquisition equipment,such as low detection rate,poor applicability and so on. An automatic line loss faultdetection method for electric quantity information acquisition equipment was proposed. By determining th...
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Number of views:3664 Amount of downloads:6729
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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 ...
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Number of views:5810 Amount of downloads:11899
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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...
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Number of views:5795 Amount of downloads:11480
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GAO Ruiteng,WANG Shuhong,WU Hao,LI Jiabin,CAO Jianwen,WU Pan,ZHANG Ailing
Abstract: A no-load grid-connected voltage phase control method of the brushless doubly-fed inductiongenerator(BDFIG)based on the control winding flux was proposed,the control system structure block diagram was constructed according to the mathematical model and control strategy of BDFIG. The hardware circuit of the...
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Number of views:3876 Amount of downloads:5738