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LI Mingbo,SUN Zhiyuan,ZHENG Kun,LIU Mosi,GAO Like
Abstract:With the increasing scale of new energy power generation and the continuous reduction of lithiumbattery cost,energy storage technology has gradually become an important supporting technology to achieve thegoal of "double carbon". However,the state of charge(SOC)of the energy storage system is too high or to...
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Number of views:2091 Amount of downloads:11320
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ZHANG Guoqiang,NIU Ben,YANG Hua,WANG Gaolin,XU Dianguo
Abstract: Maximum torque per ampere(MTPA)control is one of the important methods to improve theefficiency of sensorless drive system of permanent magnet synchronous motor(PMSM). In the sensorless drivesystem,the traditional calculation method deduces the analytical solution of the optimal current vector angleaccordi...
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Number of views:3168 Amount of downloads:11269
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LU Shanshan,LI Li,LI Lin,SUN Haibo,WU Runze
Abstract:In recent years,the large-scale access of a large number of new power distribution services such asdistributed power generation,electric vehicles,and flexible load control has led to a sharp increase in the operating pressure of the power cloud master station. To this end,an adaptive resource allocation met...
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Number of views:2609 Amount of downloads:11226
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YUAN Minxin,YIN Zhonggang,LUO Peien,ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor(IGBT)of the permanent magnet synchronousmotor(PMSM)drive system,an error current polarity method based on model predictive current control(M...
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Number of views:3146 Amount of downloads:11223
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ZHAO Weicheng,MA Haoyuan,HUANG Jinming,CAO Xin,KE Xingsi
Abstract:Voltage source converter(VSC)working as the interface of new energy stations connects to urbanmain network with long-distance AC line,which results a weak grid connected condition and has a risk of DCvoltage instability. To analyze the mechanism of DC voltage instability of weak grid connected VSC,a DC volt...
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Number of views:1800 Amount of downloads:11105
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WU Zuoping,WANG Hongyan,ZHANG Qianfu,XIE Qing
Abstract:Electricity theft by users is the main cause of non-technical loss of electric energy in power grids,which causes huge economic losses and resource wastage to the power system. Compared with a large number ofusers' normal electricity samples,electricity theft users belong to a minority class of samples,...
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Number of views:2845 Amount of downloads:11094
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LIU Kai,LI Gang,WANG Xin
Abstract: According to the 90 s regular breaking and 15 s emergency breaking requirement for 60 MW axialcompressor used in some large scientific facility,a control strategy of electric hybrid breaking in the convertor wasdesigned. The hybrid braking control strategy was analyzed and calculated,and the optimal brakin...
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Number of views:2591 Amount of downloads:11050
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LIU Tong,YIN Zhonggang,BAI Cong,YUAN Dongsheng
Abstract: In order to improve the position sensorless control performance of permanent magnet synchronouslinear motor(PMSLM),a position sensorless control method based on disturbance compensated flux observer(DCFO)was studied. This method treats the notch filter as a disturbance observer and combines it with a feedb...
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Number of views:3075 Amount of downloads:10986
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CUI Kaishun,ZHU Lan,WEI Linlin,TIAN Zeqing,LI Xiaojun
Abstract: Demand response to meet the power balance between supply and demand in the new generationresources without investing. The achievement of China's carbon neutrality goal by 2060 will surely bring aboutprofound changes in the structure of energy supply and demand. The effective development of demand-side ...
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Number of views:5771 Amount of downloads:10982
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LIANG Hong,QIAN Renjun,CHENG Yongjun,HU Jiangyu,ZHANG Man
Abstract:As a kind of winch driven by motor,electric winch has more excellent performance of cable control.However,in the process of retracting and releasing the cable,the drum inertia of the electric winch will change with the change of the cable stock. This unknown inertia change will lead to mismatching of motor ...
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Number of views:1407 Amount of downloads:10966
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LIU Xin,WEI Lixin,ZHANG Feng
Abstract:In addressing the issue of the electrical drive system of oil drilling rigs encountering instability inactuator output due to interference from multi-source random noise,a novel approach was proposed. The Fractaltheory was utilized to isolate random noise in the drilling rig electrical control system. The p...
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Number of views:2020 Amount of downloads:10812
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KONG Fanting,CHEN Jian,DI Meixian,FU Baoxin,WANG Jianquan
Abstract: Electric power system is becoming more and more power electronization with each passing day,additional losses of the power grid caused by the power quality problem is becoming more and more serious witheach passing day. Solving the power quality problem has become the new way to help the power grid to save...
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Number of views:3449 Amount of downloads:10800
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YANGYifan,YIN Han,LU Zhiye,YU Xueying
Abstract: In order to solve the problems of large volume and short service life of the traditional electrolyticcapacitor frequency converter,the thin film capacitor was used to replace the electrolytic capacitor to constitute theAC-DC-AC frequency converter without electrolytic capacitor. Aiming at the problem of bu...
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Number of views:2924 Amount of downloads:10791
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ZHANG Bin,LI Guoqing,LIU Dagui,SHI Wei,XIAO Guilian
Abstract:Reliability assessment of distribution systems is a crucial foundation for maintaining their powersupply continuity. For existing distribution network photovoltaic systems,solar irradiance modeling was limited toits exponential autocorrelation. To enhance the reliability assessment through accurate predicti...
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Number of views:2047 Amount of downloads:10739
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YUE Xuelei,WANG Lei,TIAN Di,XU Kelei
Abstract: Permanent magnet synchronous motor(PMSM)has become the development direction of the newgeneration of rail transit traction system due to its characteristics of high efficiency and high power density. Amongthem,the research on the identification method of the initial position and frequency of the motor roto...
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Number of views:2789 Amount of downloads:10712