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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:2467 Amount of downloads:1272
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QIAN Xiao,MA Xiang,LÜ Leiyan,ZHANG Wenjie,WANG Ning,ZHI Yuemei
Abstract: Traditional power grid dispatching alarm algorithm has low alarm instruction operation efficiency,low power grid dispatching failure burst rate and high alarm error alarm rate,so the power grid dispatching alarmassociation rules and decision tree algorithm based on knowledge graph were proposed. The associ...
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Number of views:2108 Amount of downloads:1270
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XU Changbao,DING Jian,SONG Hongjian,PAN Chengda, SUN Pengbo,WANG Qihua,CHEN Hui
Abstract: An optimization method was proposed to layout electric vehicle charging facilities consideringpower quality constraints. A comprehensive power quality index model considering the average value of nodalthree-phase unbalance degree and the maximum value of nodal voltage deviation was established. Meanwhile,t...
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Number of views:2142 Amount of downloads:1258
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ZHANG Mingke,QIU Xiaoyan,SUN Xu,ZHANG Zhirong,REN Hao
Abstract: The growing electric vehicle(EV)charging load will produce significant impact on safe operationof distribution networks. The accommodation capability of EV charging load in traditional AC distributionnetworks is limited. AC/DC distribution networks with multi-terminal voltage source converter interconnecti...
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Number of views:2563 Amount of downloads:1257
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CHEN Bojian,XUN Chao,LIN Chaoqun,XIAO Fen,LIN Keyao,WU Xiangyu
Abstract: The loss rate is an important indicator to measure the technical operation level and economicoperation level of the power system. In response to the actual needs of the distribution network in management andtechnical loss reduction,based on loss statistics and theoretical calculations,a short-term loss cha...
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Number of views:2453 Amount of downloads:1253
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DONG Yi,ZHOU Yufei,LIU Shuai,WANG Yingying
Abstract: The coupling coefficient of the loosely coupled transformer in the inductively coupled wirelesspower transmission(ICPT)system is a key parameter affecting the conversion efficiency of the wireless energytransmission system. To improve the coupling coefficient,an equivalent magnetic circuit model was establ...
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Number of views:1588 Amount of downloads:1249
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王德明,李英量,贾俊辉,解晨,王语园
Abstract: The conventional overcurrent protection is ineffective in isolating faults in microgrids due to the lowfault current level contributed by distributed generations(DGs). Because of its high agility and adaptability,themeasured impedance-based protection schemes are considered as common alternatives to detect...
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Number of views:1966 Amount of downloads:1249
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ZHANG Feifei,ZHANG Jun,WU Long,WU Xiaohui,XUE Zhanbo
Abstract: In order to solve the problems of false alarm rate and missing alarm rate in the traditional faultdetection method of substation primary equipment,a fault detection method of substation primary equipment based on deep convolution neural network was proposed. The substation primary equipment image and scene...
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Number of views:2039 Amount of downloads:1243
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HU Xiaoyu,ZHOU Yuanxiang,CHEN Jianning,ZHAO Yunzhou,LIU Jun
Abstract: As a new type of insulating oil in the power industry,natural gas insulating oil is excepted to solvethe bottleneck problem of high-quality transformer oil's insufficient supply in the future. However,its electricalparameters including partial discharge withstand strength and sweep frequency spectrum c...
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Number of views:1990 Amount of downloads:1243
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LI Jiangcheng,CHEN Xiaohua,LI Haitao,ZHU Zhixu
Abstract: Because the current method does not optimize the control parameters of flexible AC transmissiondevice,resulting in unsatisfactory control results,control delay and loss rise,a flexible AC transmission devicecontrol method based on multi-objective optimization was proposed. The basic working principle of fl...
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Number of views:1743 Amount of downloads:1237
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DING Qiang,ZHU Jie,JIANG Yingxu
Abstract: Direct-drive electrically excited synchronous motor(EESM)is obtained widespread utilization inwind power generation system due to its advantages of simple construction and low cost. Firstly,a mathematicalmodel of EESM was derived and the direct torque control(DTC)algorithm for EESM was introduced based on ...
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Number of views:1907 Amount of downloads:1235
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XU Binbin,CHEN Chang,ZHANG Aoyu,WANG Yongqiang
Abstract: In order to study the distribution of magnetic field and temperature field of dry-type transformeriron core more accurately,analyze the influence of different excitation on the magnetic field loss and hot spottemperature rise of dry-type transformer core,firstly,Maxwell was used to calculate the transient ...
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Number of views:889 Amount of downloads:1233
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SU Le,CHENG Jing,WANG Weiqing
Abstract: In recent years,the broadband oscillation of power system caused by new energy grid-connectedoccurs frequently. As an important part of new energy,photovoltaic power station can't be ignored. In order toexplore the broadband oscillation of photovoltaic grid-connected,a detailed linear mathematical mode...
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Number of views:771 Amount of downloads:1229
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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:2431 Amount of downloads:1216
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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:2385 Amount of downloads:1209