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ZHAO Hao,LU Jinke,ZHU Yidi,ZHOU Ziniu,DU Weixi
Abstract:Junction-case thermal resistance has always been a highly concerned thermal parameter of powersemiconductor devices,which is also the standard to weight the heat sink performance of power semiconductordevices. Heat-sink design should be considered in order to prevent device overheating damage. Therefore,acc...
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Number of views:1559 Amount of downloads:1791
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CAO Min,YU Wenjin,BAI Zeyang,YI Xin,JU Jian
Abstract:In order to ensure the minimum carbon emission and optimal power distribution of the hybridenergy storage microgrid under the constraint of carbon footprint,a distributed coordinated control algorithm of the hybrid energy storage microgrid under the constraint of carbon footprint was proposed. Based on the ...
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Number of views:1303 Amount of downloads:1786
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WANG Ru,WANG Haiyun,FAN Tianyuan,ZHANG Shengnan
Abstract: University buildings are major energy users,and there are two main forms of energy use:electricityand heat. Making full use of the roof resources of university buildings to develop solar energy projects andrationally allocate energy storage can effectively improve the energy economy. In order to improve th...
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Number of views:1431 Amount of downloads:1786
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LIANG Zhen,WANG Yong,BAI Haibin,ZHANG Zhiyu,SUN Qianhao,CUI Bin
Abstract: Based on full-bridge(FB)and half-bridge(HB)sub-modules(SMs),the conventional hybridmodular multievel converter(MMC)is a typical topology of MMC with DC fault clearing ability. However,theproportion of FB SMs in conventional hybrid MMC is usually greater than 50%,so as to increase the cost andlosses. To sol...
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Number of views:1055 Amount of downloads:1785
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ZHANG Xiangqian,CHE Chaochang,LI Fengsheng,YU Shipeng,LEI Hui
Abstract: As an important part of power electronic power conversion device,auxiliary power supply is facedwith the application demand of high voltage and wide range in DC transmission,solar power station,wind powerstation and other systems. Aiming at the problems of switch stress,cost and efficiency caused by high v...
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Number of views:1270 Amount of downloads:1784
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YAO Yan,GAO Feilin,ZHOU Ziwang
Abstract: Aiming at the problems of increased network loss and node voltage deviation of the traditionaldistribution network after the distributed generations(DGs)is connected to the network,an optimization strategythat takes into account the reactive power output of DGs grid-connected inverter was proposed. Firstly...
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Number of views:1435 Amount of downloads:1784
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DONG Lizhi,ZHAI Bingcong,WANG Kaifeng,JIA Xuecui
Abstract:When multiple energy storage units are connected to an energy storage station by the powerelectronic converter,the interaction and coupling effect bring challenges to the stable operation of the system. Thesmall-signal model of the parallel storage system was established. The stability analysis was carried ...
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Number of views:1042 Amount of downloads:1783
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ZHANG He,CAO Tianbi,LI Xianyun
Abstract: In view of the complex transient characteristics of short-circuit faults in DC power network and thedifficulty of fault identification,the short-circuit faults in DC power network can be identified by detecting the change of capacitance voltage through the analysis of the VSC topology and switch characteri...
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Number of views:1803 Amount of downloads:1783
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ZHOU Zhifeng,ZHU Wen,XIAWei,FANG Wenchong,HE Chaolin
Abstract: Under the background of energy internet,due to the access of massive sensor nodes,the amount and types of data in energy internet have increased dramatically,and centralized data processing has a great impact on the updating of substation drawing model. Therefore,a control measure of automatic updating of ...
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Number of views:1268 Amount of downloads:1782
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MIAO Yuntao,WANG Chengxian,LI Junda,GU Jiateng,ZHANG Zhenbin
Abstract:Model predictive control(MPC)is an effective control strategy for permanent magnet synchronousgenerators(PMSG)due to its fast dynamic response and multi-objective optimization capabilities. However,MPCrelies on accurate system models and sensor measurements. In practical conditions,parameter mismatch caused...
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Number of views:967 Amount of downloads:1781
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WANG Yuqi,WANG Yufeng,GUO Yubao
Abstract: The equipotential switching algorithm of the traditional mechanical static compensator(MSC)device had many limitations in the operation of the single machine,such as the long operation time of themicrocontroller control chip,the poor convergence of the calculation results had been affected by the hardware,...
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Number of views:1533 Amount of downloads:1780
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ZHANG Di,HUANG Lu,CUI Jing,SONG Zhiwei
Abstract: The AC voltage sensors are used to measure the grid voltage,which brings high hardware cost,difficult installation and low reliability. In order to realize that grid voltage sensors are not necessary,virtual fluxwas introducted to model prediction power control algorithm for cascaded H-bridge rectifier. Th...
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Number of views:1242 Amount of downloads:1779
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MAYuefeng,ZHAO Suqi,WANG Kai
Abstract:Microgrid is an effective method to integrate a large number of distributed generators into the powergrid. Aiming at the optimal dispatch problem of microgrid,an optimal dispatch method based on proximal policyoptimization algorithm was proposed. Firstly,the optimal diapatch model of microgrid was construct...
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Number of views:1154 Amount of downloads:1776
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ZHANG Jianwei,YANG Zaixin,WANG Yunhui,LIU Guangchen
Abstract:In order to alleviate the intensive computational burden in the model predictive contro(l MPC)of the matrix converter,the MPC of the matrix converter was divided into the predictive control of the virtual rectifier and virtual inverter based on the equivalent indirect modulation of the matrix converter. Com...
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Number of views:961 Amount of downloads:1774
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YUAN Yisheng,HUANG Yikun,CAO Hui,HUANG Zhimin
Abstract:A bidirectional isolated resonant converter with variable mode and wide voltage range wasproposed. The proposed converter has the advantages of BOOST circuit and flyback current feed topology. Byreusing the pre-storage and flyback energy feedback of the resonant inductor,it can improve the gain from thebatt...
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Number of views:1032 Amount of downloads:1770