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ZHOU Jun,XIAO Yuanbing,YAN Huamin,LU Jingjing,XU Tiefeng,ZUO Fanglin
Abstract:In order to improve the power coordination ability among microgrids in the microgrid group,it isnecessary to consider the correlation between renewable energy generation output and the difference in load timedistribution in different regions in the microgrid group planning. A scenario generation method that...
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Number of views:404 Amount of downloads:337
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CHU Wenchao
Abstract:Transmission line tower as the normal operation of the power system of the necessary equipment,itsgrounding resistance accurate detection for the safe and stable operation of the entire power system is particularlyimportant,especially in the judgment of lightning protection performance and other aspects. Th...
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Number of views:300 Amount of downloads:336
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MIAO Yuntao,WANG Chengxian,LI Junda,GU Jiateng,ZHANG Zhenbin
Abstract:Model predictive control(MPC)is an effective control strategy for permanent magnet synchronousgenerators(PMSG)due to its fast dynamic response and multi-objective optimization capabilities. However,MPCrelies on accurate system models and sensor measurements. In practical conditions,parameter mismatch caused...
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Number of views:344 Amount of downloads:334
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ZHOU Yi,FANG Wei,GONG Min,XIA Xuesong,CHEN Yanling,HAN Ni
Abstract:Despite bringing several benefits to modern power systems,distributed generation(DG)andmicrogrids cause a significant impact on the operation of power distribution networks,especially with regard to theprotection system. In this new scenario,the adoption of smart protection systems capable of incorporating ...
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Number of views:411 Amount of downloads:332
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KAN Chaohao,YAO Xiaojian,QI Ankang,WANG Zhisheng, WANG Pengcheng,CHEN Gong
Abstract:Three-phase asynchronous motor is one of the most frequently used motors. Inter-turn short circuitfault is a kind of fault with high probability. If the real-time monitoring of motor operation,health and safetyevaluation of the operation,will be able to timely stop losses,reduce losses. An inter-turn fault ...
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Number of views:422 Amount of downloads:330
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YANG Zhaohui,WEI Huadong,HE Liuqing,ZHANG Hao,PENG Guoping,SHI Ben
Abstract:Aiming at the problem of large switching loss of modular multilevel converter(MMC),startingfrom the switching frequency optimization strategy,the existing switching frequency optimization strategy wasimproved,and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
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Number of views:246 Amount of downloads:325
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YANG Yan,LIU Tong,JIN Panlong,QI Caijuan
Abstract:In order to solve the problem that the time-of-use price is not taken into account in the calculation ofthe peaking cost in the case of a large number of renewable energy sources,a method of calculating the peakingcost of power system with time-of-use price was proposed. First,the key scenarios of power gri...
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Number of views:320 Amount of downloads:325
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SI Dajun,WANG Jie,SHU Banggui,ZHANG Guangbin,SHU Hongchun
Abstract:The load of a submerged arc furnace has many advantages,such as large single-unit regulationcapacity,good communication conditions,easy control,and low economic retrofitting,making it an importantflexible regulation resource for the power grid. However,there is currently a lack of effective digital simulati...
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Number of views:245 Amount of downloads:323
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HAN Shaohua,MAO Wangqing,GE Xuan,XU Lei,CHEN Ken,LIANG Rui
Abstract:Compared with large photovoltaic systems with isolation transformers,distributed photovoltaicsystems have small power and volume. In order to improve efficiency,non-insulated inverters are often used indesign,but photovoltaic leakage current endangering system safety is also generated. Taking the single-pha...
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Number of views:330 Amount of downloads:323
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MA Junchao,WANG Chenxu,SUN Dan,PENG Yan,ZHANG Zeyu,YANG Ying
Abstract:In response to the potential frequency secondary drop problem of direct-drive wind power systemsin the scenario of continuous frequency drop faults in the power grid,the principle of primary frequency regulationof direct-drive wind power systems was analyzed. A primary frequency regulation control strategy ...
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Number of views:326 Amount of downloads:321
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LIU Jinwei,ZHOU Jie,LI Chuan,XIAO Xiao,WU Huicheng
Abstract:In order to improve the accuracy of intelligent diagnosis of reactor mechanical fault,according tothe correlation characteristics between reactor vibration signal and mechanical state,a vibration diagnosis methodof reactor mechanical fault based on stacked auto-encoder(SAE)was proposed. Firstly,the original...
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Number of views:419 Amount of downloads:321
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CHEN Biao,HAN Zhongxiu,MA Liqiang,ZHANG Renhe
Abstract:The back-to-back active neutral-point-clamped(ANPC)converter,as the core component of theunified power flow controller of the distribution network,is widely used for the flexible closed-loop operation.However,the ANPC converter has more switching devices and commutation paths,which significantly increasesth...
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Number of views:261 Amount of downloads:320
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FANG Yong,SONG Tao,GUO Ziqiang,WANG Jian,GUO Jie
Abstract:With the continuous development of renewable energy sources and the increasing share ofrenewable energy in the grid,optimal coordination of maintenance work becomes increasingly important in order to ensure the safety of power supply in power systems considering renewable energy access. Current tools formai...
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Number of views:326 Amount of downloads:320
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ZHANG Xuyang,ZHANG Maosong,WANG Xiuqin,CHEN Zhong,WANG Qunjing
Abstract:In view of the problem that the transfer branch of the current high-voltage DC circuit breaker mostlyadopts uncontrollable full-bridge transformer coupling energy supply,which is not conducive to controllable andstable power supply,and low energy utilization,a combined DC circuit breaker energy supply metho...
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Number of views:303 Amount of downloads:315
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YANG Lei,WANG Xianjun,WANG Zijian,ZHAO Weihua,LI Peng,LI Mengxi
Abstract:As the penetration rate of household distributed PV in China's low-voltage distribution networkcontinues to increase,the power flow of the distribution network has changed,leading to more serious problemssuch as node voltage overruns and three-phase imbalance,which poses a serious threat to the safe and...
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Number of views:296 Amount of downloads:313