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SUN Zhenqin,QU Jianhua,ZHANG Zhenzhen,QUAN Xiao,LI Hongbin,TAN Peng
Abstract: In order to improve the measurement accuracy of the position and speed closed-loop of the brushlessDC motor,which is currently used in the attitude control actuator,a new cumulative pulse M/T method wasproposed,based on incremental off-axis magnetic encoder(AS5304A)and TMS570 chip internal integratedenhance...
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Number of views:1195 Amount of downloads:1382
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YIN Zhenhuan
Abstract:Due to the advantages of faster dynamic performance and smaller torque ripple,high frequencypulse voltage injection(PSVI)is widely used in sensorless control of permanent magnet synchronous motor(PMSM)at low-speed range. Under low switching frequency,the dynamic and steady performance of thetraditional high...
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Number of views:1194 Amount of downloads:1459
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CHEN Xiaoru,HUANG Longyi,LAI Shengjie,YANG Mingjia,WANG Zeqing,XIA Chengjun
Abstract:The circulating current of metal sheath in high voltage cable is the superposition of induced currentcomponent and leakage current component. At present,the calculation of induced current component is relativelymature,but the calculation of leakage current component is insufficient,which affects the final c...
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Number of views:1193 Amount of downloads:1337
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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:1187 Amount of downloads:1300
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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:1184 Amount of downloads:1649
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YANG Tianxiang,CHENG Zhijiang,YANG Handi,TIAN Feng
Abstract: Aiming at the demand of intelligent coal mine and exit problem of underground coal mine powernetwork,an energy storage hybrid distribution transformer based on modular multilevel converter(MMC-HDT)was proposed. Firstly,the proposed energy storage MMC-HDT was modeled and four operation modes were givenconsi...
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Number of views:1181 Amount of downloads:1521
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TIAN Bin,SUN Quanhui
Abstract: AC/DC switching power supply is the main source of electrical system,its development trend islarge capacity,high power density,high efficiency,low power factor and low harmonic content. However,there are still some common problems with existing digital power supplies,including poor anti-interference abilit...
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Number of views:1180 Amount of downloads:1312
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LÜ Zhengyu,ZHOU Liang
Abstract: In the process of controlling the voltage of active distribution network,there are problems of poorvoltage control effect and low efficiency. A two-stage automatic voltage control method of active distributionnetwork considering load measurement was proposed. Using the probability density function (PDF) cu...
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Number of views:1178 Amount of downloads:962
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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:1174 Amount of downloads:1849
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ZHU Ye,CHEN Yuanrui,CHEN Yang,WANG Zhenlin
Abstract:The safe and efficient operation of lithium batteries depends on accurate state of charge(SOC)estimation. However,the traditional battery model and SOC estimation have poor robustness and reliability undernoise interference. Aiming at the problem of SOC cooperative estimation under noise interference,firstl...
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Number of views:1166 Amount of downloads:1103
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GUO Jiahao,YANG Xiong,FANG Xin,GUAN Jiamin
Abstract: The secondary voltage signal output by electronic capacitive voltage transformer in the primary andsecondary fusion equipment is very weak,which is easy to be interfered by high-order harmonics,resulting inunstable signal transmission. In order to solve these problems,a high-order and high-precision filter...
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Number of views:1164 Amount of downloads:1008
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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:1163 Amount of downloads:1207
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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:1159 Amount of downloads:904
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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:1158 Amount of downloads:1031
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LIU Hui,SU Jianhui,ZHANG Jian,LIU Shuo,SHI Yong,ZHANG Jie
Abstract:Wireless power transfer(WPT)load voltage,current and other state information need to be sent tothe original side for closed-loop control and monitoring processing,the secondary side to the original side of thecommunication is very important. Firstly,the topology and working principle of capacitive modulated...
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Number of views:1153 Amount of downloads:900