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SONG Zhuoran,LI Jianfeng,JIANG Tao,DENG Xinyang,LIU Yu
Abstract: There are parameter identification errors in the process of distribution network synchronousmeasurement configuration. The optimal configuration method of distribution network synchronous measurementdevice based on parameter identification accuracy was studied. Based on the measurement data of the synchron...
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Number of views:4482 Amount of downloads:6935
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LUO Ke,WU Shuanglong,REN Chao,LIU Yuan
Abstract: Aiming at the electromagnetic noise problem of the permanent magnet synchronous motor for electric vehicle,the causes of noise were analyzed from the perspective of current harmonic and electromagnetic force. It has shown that current harmonics control is an effective method for motor electromagnetic noise...
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Number of views:5183 Amount of downloads:6932
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HUANG Xu,LIU Yichao,ZHU Hanqing,LIU Yang
Abstract: The DC fault current calculation method of modular multilevel converter(MMC)is the key to studythe DC fault transient characteristics and isolate the fault point rapidly in VSC-HVDC grid. Firstly,aiming at twotypical MMC fault equivalent models,the topology and the capacitor voltage characteristics when th...
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Number of views:4585 Amount of downloads:6930
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YANG Fan,HUANG He,LI Haiying,LI Dongdong,ZHAO Yao
Abstract: There are a lot of equipment operation rules in power equipment defect text,which can be mined bynatural language processing technology to provide guidance for equipment maintenance. Aiming at this situation,a defect text mining method based on enhanced representation through knowledge integration(ERNIE)pr...
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Number of views:4395 Amount of downloads:6923
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WANG Xing,TAN Peixiao,CHENG Zhijiang,MAWanqing,TIAN Bo
Abstract: Retired power batteries have poor parameter consistency,when they are used for energy storageafter series and parallel connections,the barrel effect is obvious and the failure rate is high. So the improved modular multilevel H-bridge converter(MMHC)distributed energy storage based on modular multilevel con...
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Number of views:4567 Amount of downloads:6918
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LI Dexiang,LU Jiayu,GE Wenqing,LI Bo,TAN Cao
Abstract: Aiming at the problems of high control performance and long design cycle of electromagnetic linearactuator control parameters,a multi-objective optimization design method of control parameters was proposed.Based on electromagnetic linear actuator system,a robust controller was designed. The controller para...
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Number of views:5151 Amount of downloads:6914
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YANG Shuying, WANG Qishuai, DONG-YE Yalan, XIE Zhen
Abstract: For interior permanent magnet synchronous motor(IPMSM) , accuracy of its discrete-time model isusually at the cost of complexity. To find out a way out of the dilemma, stator flux is chosen as the state variable,allowing its model be represented in the complex form and resulting in a concise model in appear...
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Number of views:5456 Amount of downloads:6909
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QIN Changfeng,YIN Jiang,SONG Shijie
Abstract:In order to solve the problem of parameter estimation in the high-performance control of squirrelcage asynchronous motor,a method for joint parameter identification of asynchronous motors with dual modelsbased on improved whale algorithm was proposed. This method can effectively identify the stator resistan...
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Number of views:2099 Amount of downloads:6900
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WU Han,HUANG Xinghua,QIAO Zhendong,FAN Yuanliang,ZHU Junwei,CHEN Jinyu
Abstract:Accurately estimating the state of health(SOH)of lithium-ion batteries is a crucial prerequisite forensuring the safe and stable operation of energy storage systems. The key to improving the accuracy of SOHestimation lies in the rational selection of health characteristics that can effectively reflect the s...
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Number of views:1877 Amount of downloads:6893
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YU Jia,Wang Xiaorong,Dai Yuesheng,LI Xuan
Abstract: With the advance of smart power grid construction,the terminal laying rate of intelligent acquisitionequipment has been greatly improved,and the demand-side terminal electrification has become an irreversible trend.In recent years,the problems of users' default power supply and private overlapped lines...
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Number of views:5754 Amount of downloads:6893
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LUO Lan,WANG Yuhong,SONG Ruihua,BI Jingtian,CHEN Shiyu,WAN Liangbin
Abstract: In the multi terminal flexible direct current(DC)transmission system,the flexible direct inner andouter loop control can not provide inertial support for the receiving end passive network. Traditional virtualsynchronous generator(TVSG)control can provide inertia support for passive network,but it can only ...
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Number of views:4256 Amount of downloads:6879
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SONG Wenxiang,REN Hang
Abstract: Six phase inverter provides abundant voltage vector resources for dual three-phase permanentmagnet synchronous motor,which can make predictive current control more accurate. However,more voltagevectors cause the problem of too much calculation. At the same time,the harmonic current of dual three-phase motor...
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Number of views:5642 Amount of downloads:6875
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SU Jichen
Abstract: Due to the low efficiency of data processing and high export delay of intelligent measurementequipment in substation engineering,the construction progress of substation engineering is slow. Therefore,the data batch export system of intelligent measurement equipment in substation engineering was designed. T...
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Number of views:5080 Amount of downloads:6871
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CHEN Qun,ZHOU Jiemin,HONG Feng,ZHENG Gang,XI Zhiyang
Abstract: The solid-state power controller,which integrates the functions of traditional power distributiondevices such as circuit breakers and relays,is the core component of the all-electric aerospace vehicle powerdistribution system.Among them,the inverse time overcurrent protection technology is one of the key t...
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Number of views:3649 Amount of downloads:6868
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GU Laiqiang
Abstract:The traditional three-phase pulse width modulation(PWM)rectifier requires six power switches.Due to the shoot-through problem between two switches on the same bridge arm,the control difficulty is increasedand overall system design becomes more complicated. A half-controlled three-phase PWM rectifier topolog...
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Number of views:1914 Amount of downloads:6867