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GUAN Wei,DONG Lei
Abstract:Among the junction temperature monitoring methods of insulated gate bipolar transistor(IGBT),the temperature-sensitive parameter method has attracted wide attention because of its fast response speed,low cost and easy on-line detection. Previous studies have shown that the gate threshold voltage(VTH)among t...
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Number of views:2303 Amount of downloads:5979
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SONG Zhuoran,DOU Wenlei,LI Jianfeng,JIANG Tao,LU Sichen,JI Hansong
Abstract: In order to improve the operation economy of the distribution system with multiple industrial parksand restrain the power fluctuation of the distribution-micro tie line,a multi-time scale optimization schedulingstrategy for the distribution system with multiple industrial parks was proposed based on the ro...
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Number of views:2301 Amount of downloads:6642
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WANG Mingyue,HE Yongpeng,YU Zhiqiang,ZHANG Zhonglei,YU Hongze
Abstract:Because of crystal oscillator error,inter-symbol interference and baseline drift in industrial opticalfiber communication,the optical fiber receiver has the problem of high error rate of data recovery. In long-distanceindustrial communication,the electrical level jitter of serial data at the receiver will i...
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Number of views:2300 Amount of downloads:8372
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GAO Chong,PAN Xianxian,XU Zhiheng,ZHANG Junxiao,HUANG Ye,DENG Wenyang
Abstract: The effective evaluation of microgrid is an important reference for the planning,construction andoperation of microgrid. The comprehensive evaluation index system of microgrid planning was constructed step bystep from three aspects of composition structure evaluation,technical evaluation and benefit evalua...
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Number of views:2299 Amount of downloads:6770
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WANG Wenyuan,LUO Zhiwei,XIA Huan,CHEN Jie
Abstract:The modeling of distributed power sources in DC microgrids serves as the foundation for large-scalepower system simulations. However,the difficulty in obtaining electromagnetic parameters of diesel generatorshampers the accuracy of their electrical characteristic modeling. To address this issue,a data-drive...
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Number of views:2291 Amount of downloads:8021
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CHE Zihang,WU Jiahui,WANG Weiqing,ZHANG Hua,YANG Jian,PEI Yufeng,ZHANG Jingang
Abstract:To further improve the economy of integrated energy system(IES)capacity allocation,an IESoptimization configuration model based on supply-demand collaborative response was proposed,aiming todetermine the optimal comprehensive capacity of various equipment in the system. First of all,based on thecharacterist...
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Number of views:2286 Amount of downloads:10207
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JI Huancong,XIA Chengjun,WANG Zeqing,LAI Shengjie
Abstract: Aiming at the problems of high cost and poor voltage quality in the conventional power distributionscheme of long-distance electrical equipment of rail transit,a technical scheme of DC power distribution for longdistance electrical equipment was proposed to achieve the purpose of improving voltage quality ...
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Number of views:2280 Amount of downloads:6503
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HU Dong,HU Jingtao,ZHANG Wentao,LÜ Feichun,WU Xu
Abstract: Photovoltaic(PV)power generation is an important power generation method to achieve the goal ofcarbon neutrality. During the grid connection of PV power generation system,due to the characteristics of inverterand the influence of nonlinear load,high-order harmonics are generated,the power quality of the po...
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Number of views:2275 Amount of downloads:7169
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WANG Yihan,FENG Chuanxin,JIN Tao
Abstract:To solve the problem of neutral point voltage imbalance when the three-level neutral point clamped(NPC)inverter works,an improved neutral balance model predictive control(INB-MPC)algorithm was proposed.The proposed method used a two-stage voltage vector selection method with no weighting factors,deleted the...
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Number of views:2274 Amount of downloads:7901
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ZHANG Junlin,NI Lianghua,SUN Jia,LÜ Ganyun,ZHANG Jinhua
Abstract:In order to intervale evaluate saddle node bifurcation points(SNB)in a power system during loadgrowth quickly and accurately,a quadratic approximation method to directly calculate the power system voltagecollapse point of was proposed. Based on the approximate quadratic PV-curve of output PQ nodes in the sy...
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Number of views:2273 Amount of downloads:6620
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SONG Weiqiong,GUO Shuai,HAN Liu,XU Chaoqun,SONG Wei,LÜ Fengming
Abstract:In order to monitor current distribution state of parallel silicon carbide(SiC)devices in photovoltaicinverter,a contactless monitoring solution based on anisotropic magnetoresistive sensor was proposed. Accordingto practical position of SiC devices on PCB board,multiphysics simulation tool COMSOL was emplo...
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Number of views:2271 Amount of downloads:6075
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TAO Li,YANG Xiaxi,GU Jinhui,WEI Bingbing,ZHANG Lin,WANG Jianing
Abstract: Virtual power plant(VPP)can integrate distributed energy resource(DER)to participate in theoperation of power market and auxiliary service market,and provide management and auxiliary services fordistribution network and transmission network. Its operation and control have been widely concerned. Aiming at t...
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Number of views:2271 Amount of downloads:6447
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WANG Jianglei,FAN Xiaochao,SHI Ruijing,WANG Weiqing,LI Wenliang,XIONG Ruifeng
Abstract: The "double carbon" goal promotes the development of China's energy sector in the direction ofgreen,low-carbon,safe and efficient. In order to improve the penetration of renewable energy such as scenery,stabilize the diversified load fluctuation on the user side,improve energy utilization efficiency an...
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Number of views:2263 Amount of downloads:6903
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TANG Junyi,DING Biwei,YANG Qi
Abstract: The integration of high proportion of wind power intensifies the uncertainty of power systemoperation. The sufficient flexibility is vital for the safe and reliable operation of the power system. An evaluationmethod of power system flexibility considering wind power prediction interval was proposed. First,...
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Number of views:2263 Amount of downloads:7024
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YAN Yulin,XIAYankun,LIU Liyou
Abstract: In order to achieve equal current, a constant current source should be used to drive the LEDs. Aconstant current source based on two output Cuk improved circuits was proposed. The circuit structure, workingmode and constant current principle were analyzed, and the voltage, current and power expressions wer...
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Number of views:2257 Amount of downloads:6050