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ZHOU Ye,CUI Shuangxi,FAN Xiaochao,WANG Weiqing,WU Binbing
Abstract: When the grid voltage is unbalanced,the negative sequence current will seriously affect the qualityof the output power of the grid-connected inverter. The detection speed of the grid information is one of the mainfactors of negative sequence current compensation. Therefore,a control strategy without phase-...
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Number of views:2611 Amount of downloads:1128
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REN Wei,ZHAI Bohao,PENG Weisong
Abstract: With the improvement of computer operation level,data-driven technology is widely used inmetallurgical industry. Accurate prediction of rolling force is helpful to shorten the length of strip head and tail andimprove the yield of strip. In order to solve the problem of low prediction accuracy of data-drive...
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Number of views:2605 Amount of downloads:989
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LI Chengyuan,ZHANG Chao,LI Zhe,LIU Bochang,GAO Jing,JIN Pengfei
Abstract: Due to the small capacity and weak regulation energy of island grid,it is very easy to cause systemcollapse. When the isolated grid collapses,it is necessary to establish the grid through its internal black start powersupply without relying on the external public grid. In recent years,with the rapid develo...
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Number of views:2583 Amount of downloads:1136
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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:2532 Amount of downloads:1001
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ZHOU Jinghua,YAN Tianle,GUO Leixuan,ZHANG Xiaowei
Abstract: With the high penetration rate of new energy power generation in microgrids and the application ofhigh proportion of power electronic equipment,coupled with the access of a wide variety of loads such as unbalanced and non-linear loads and energy storage device,the power quality problems in microgrids have ...
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Number of views:2476 Amount of downloads:1517
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ZHANG Yexin,DENG Yunchuan,LIU Zhigang,ZHANG Yuting,CHEN Tao,HUANG Ke
Abstract: When the high-speed electric multiple units(EMUs)pass through the long downslope route,speedlimit is required to meet the safety of train operation,the regenerative braking energy generated in this process isreturned to the traction network and may threaten the safety of power supply. At present,there are ...
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Number of views:2472 Amount of downloads:1140
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LI Yanlei,ZHANG Xiaoyang,LI Xiaoling,LIU Wei,WANG Gang,ZHOU Gaowei
Abstract: Because traditional methods have problems such as poor control stability and low control efficiencyin the process of using unmanned aerial vehicle(UAV)to check obstacles in transmission channels,a transmissionchannel unmanned aerial vehicle motor auto-disturbance rejection control technology based on extre...
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Number of views:2448 Amount of downloads:1075
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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:2431 Amount of downloads:1056
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CAI Chunchen,MAO Xuefei,ZHAO Lei,CHEN Zhen,LI Zhen
Abstract: Aiming at the problems that the working efficiency of ultrasonic motor is too low,which limits theworking endurance of the system and affects the resonant and dynamic characteristics of the motor,a speed andefficiency optimization bivariate control method under dynamic conditions was designed. First,the tw...
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Number of views:2428 Amount of downloads:1135
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XU Qiongguo,ZHANG Weitao,LIU Guangwei,ZHOU Bin
Abstract: Independent DC microgrid with distributed power supply and energy storage system plays animportant role in improving power supply reliability. The energy scheduling optimization of DC microgrid underdifferent operating modes was discussed,including diesel generator,fuel cell,micro gas turbine,photovoltaic,...
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Number of views:2426 Amount of downloads:1085
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ZHOU Zhen,PENG Yuanxiu,LIU Bin,LI Xiaowen,ZHA Haitao
Abstract: In the isolated island operation mode of microgrid,the output power of distributed generation unitsin the system is difficult to distribute reasonably due to the difference of output line impedance,which affects thestability of the system. In order to realize the reasonable distribution of power according ...
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Number of views:2423 Amount of downloads:988
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MA Xiaolu,WANG Zhixiong,DUAN Yanmin,ZHANG Lei,WU Yi,QI Zhuoya,HOU Jue
Abstract: The significance of promote high-efficiency motor and motor system in China was analyzed bymeans of literature research,questionnaire survey and enterprise survey. Policies and measures for the promotion of high-efficiency motors and motor systems were sorted out. Conduct market research on high-efficiency...
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Number of views:2417 Amount of downloads:1348
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TIAN Kai,WANG Ziman,CHU Zilin,YU Zhibin,YUAN Yuan,SONG Peng
Abstract: A method to extract the equivalent thermal resistance parameters of double-sided water-cooledheatsink was proposed. Based on this method,the real-time calculation of junction temperature and overtemperature protection of integrated gate commutation transistor(IGCT)power device were implemented by the water...
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Number of views:2405 Amount of downloads:1103
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LI Qi,ZHANGTaoyun
Abstract: With the advancement of China's energy internet strategy,edge calculation has become an effectivemode to solve the data processing of energy internet. Aiming at the problems of chaotic storage and poor fusion ofheterogeneous power distribution and power data in energy internet,the multi-source data pro...
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Number of views:2396 Amount of downloads:960
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YAN Yuhao,ZHOU Buxiang,CHEN Shi,DONG Shen,LIU Zhifan,ZANG Tianlei
Abstract: At present,the focus of research on doubly fed induction generator(DFIG)high voltage ride through is a single high voltage fault.However,after DFIG low voltage ride through,due to the irrationality of the reactive power compensation strategy,a low/high voltage compound fault have be caused,which have a cer...
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Number of views:2390 Amount of downloads:1112