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YU Shengcan,YU Tao,FENG Miaoyong
Abstract:Accurately and quickly identifying the fault types of traction transformers is a key technology forintelligent operation and maintenance. Aiming at the problems of single model deviation in the current traditionalalgorithm and the constraints between the iteration rate of complex models and the deployment o...
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Number of views:920 Amount of downloads:648
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LI Yunwang,CHEN Junde,ZHANG Daping,SANG Yun,HAN Xiaolei
Abstract:An adaptive active arc suppression method based on S-transform correlation degree for distributionnetwork unidirectional grounding was proposed to effectively eliminate single-phase grounding fault arc indistribution network and improve power system stability. The time series data of zero-sequence current o...
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Number of views:877 Amount of downloads:589
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SUN Lunan,ZHOU Yong,LIU Xiaodong,LIU Yawei,WANG Haoyu
Abstract:Combined with the current software features and the requirements for function expansion of thecurrent test equipment engineering project,a set of test data analysis system was designed. The system includes the functions of remote test data monitoring,historical data playback,test data analysis,data predicti...
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Number of views:878 Amount of downloads:1416
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ZHOU Jinwei,DING Dawei,JIANG Xuexiang,REN Zhaoting,LI Xizhi
Abstract:Maximum torque per ampere(MTPA)control can effectively improve system efficiency throughreducing copper loss,which is suitable for air conditioning permanent magnet compressor system. However,due to the inverter non-ideal characteristics,the tracking accuracy of the optimal current vector angle decreases. T...
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Number of views:1219 Amount of downloads:1091
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LOU Bin,HAI Ying
Abstract:Harmonic loss is one of the main causes of safety accidents in excitation transformers. If the lossvalue is too large,it can easily affect normal substation and transmission. Therefore,a method based on waveletpacket decomposition and reconstruction was proposed to calculate the additional loss of rectifica...
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Number of views:999 Amount of downloads:1221
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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:1072 Amount of downloads:1023
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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:1256 Amount of downloads:1439
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FU Chen,FEI Fei,WANG Jianjun,GUO Mingxing,LIN Shunfu,ZHANG Qi
Abstract:Making full use of the regulation of flexible resources can effectively suppress the fluctuation ofrenewable energy generation and ensure the economic and safe operation of power system. An optimal dispatchingmethod for power system considering the flexibility of battery energy storage systems(BESS)and pump...
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Number of views:1087 Amount of downloads:844
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QIAN Junjie,LI Haoquan,LI Guanghua,XU Dongli,LÜ Ganyun
Abstract:Aiming at the problem of power quality deterioration caused by a large number of high-permeabilitydistributed generation connected to the distribution network,a power quality assessment method based oncombination weights and vlsekriterijumska optimizacija i kompromisno resenje(VIKOR)method was proposed.Firs...
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Number of views:1056 Amount of downloads:744
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WANG Yuhao,LIU Haitao,ZHU Kangkai,ZHONG Cong,MA Jiayi
Abstract:With the increased penetration rate of new energy year by year,it is difficult to accurately predictthe randomness and fluctuation characteristics of its output,causing a severe challenge to the operation,planningand scheduling of electrical power system. Therefore,modeling for the uncertainty of new energy...
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Number of views:1181 Amount of downloads:1216
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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:939 Amount of downloads:977
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SU Yanlong,YANG Jun,WENG Yuyou,WANG Yuling,HU Yu,PAN Shitong
Abstract:In order to improve the stability and economy of photovoltaic-storage combined power station,acapacity optimization method of photovoltaic-storage system based on the whole life cycle was proposed. The basicmodel of the station was analyzed. The capacity optimization model of energy storage system was estab...
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Number of views:958 Amount of downloads:711
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WANG Yanjie,LIN Chaobin,XU Guozhi,LI Qingyao,ZHANG Zhenye,HU Kun
Abstract:To adapt to the construction of a novel power system with new energy as the main body,it isnecessary to continuously improve the new energy consumption capacity of various voltage-level power grids.Through the research on the influencing factors and improvement methods of new energy consumption capacity ofd...
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Number of views:877 Amount of downloads:769
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LI Xinhai,LUO Qifeng,ZENG Qingzhu,ZENG Xinxiong,YAN Chao
Abstract:The detection of composite insulator defects in substations still relies on inspection by operators,which is a heavy workload and prone to leakage due to visual fatigue. To reduce the computational resourceconsumption and shorten the training time,the region convolutional neural networks(RCNN)was improved b...
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Number of views:631 Amount of downloads:624
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QIN Gang,ZHANG Changqing,JIANG Xuejiao,ZHONG Lei,ZHOU Chaojun,WU Min
Abstract:During the operation of high-voltage DC power grid,due to factors such as load characteristics andvoltage fluctuations,the instantaneous power characteristics such as capacitor current and harmonics are morecomplex,which increases the difficulty of identifying faults in the power grid system. Therefore,a bi...
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Number of views:598 Amount of downloads:581