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PANG Bo,MENG Jing,ZHANG Yang,TA Na,WANG Haibo,DU Jing
Abstract:The accurate identification of hidden danger for power utilization in low-voltage substations plays animportant role in improving the quality of power supply and reducing the risk of accidents.To improve the accuracyof identifying hidden danger in low-voltage substations,a low-voltage user hidden danger for...
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Number of views:1559 Amount of downloads:3591
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ZHOU Qun,XIA Haogang,CAI Xiyu,LIN Dong,YAN Tiesheng
Abstract:The amplitudes of strong pull-in current and hold-on current passing through the high speedsolenoid valve were regulated accurately by using hysteresis control to realize pulse width modulation of thevoltage of fast solenoid valve,the duty cycle of the current pulse passing through the high speed solenoid v...
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Number of views:1374 Amount of downloads:3588
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FANG Biwu,XIAO Liang ,SUN Cheng,CHEN Yiping,XUE Yanjun,ZHANG Deliang
Abstract: In order to improve the absorption capacity of clean energy and make full use of the peak regulationresources of each province,the peak regulation capacity of different types of power sources was studied,and aregional power grid optimization dispatching method considering the mutual aid of peak regulation ...
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Number of views:4021 Amount of downloads:3585
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FU Wenqi,HUANG Yongzhang,YANG Xin,GUAN Fei,GU Yujun
Abstract: The integration of large-scale renewable energy source causes the reduction of rotational inertia inpower systems. A motor-generator pair(MGP)can provide a real inertial response(IR)capability without delay forrenewable energy generations. The electrical-mechanical model of the MGP was established based on...
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Number of views:4657 Amount of downloads:3583
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GUO Dengke,MI Wentao,ZHUANG Feihu,XU Yiduan,FAN Ruini
Abstract: According to the requirements of quickly and reasonably formulating load transfer measures afterdistribution network failure at this stage,a reliability evaluation scheme for fault transfer based on K-fold verification was introduced. Square up various power supply modes,according to the energy balance equ...
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Number of views:4326 Amount of downloads:3583
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ZHANG Zhi,WANG Xinyu,WANG Lin
Abstract: At present,the most commonly used methods for identifying photovoltaic cell parameters areanalytical methods and intelligent optimization algorithms. The sparrow search algorithm(SSA)is a newlyproposed intelligent optimization algorithm. It has the advantages of traditional intelligent optimization algorit...
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Number of views:4135 Amount of downloads:3580
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ZHAN Chengkang,LI Xiaolu,LU Yiming,LIU Riliang,LI Congli
Abstract: With the access of large-scale distributed energy resources in active distribution network,thetraditional centralized control architecture system will not effectively deal with a large number of distributed unit,so it is necessary to study the optimal scheduling of distributed resource cluster in active di...
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Number of views:2502 Amount of downloads:3571
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ZHAO Jingjing,CHEN Linghan
Abstract: The penetration rate of renewable energy in the island AC microgrid was relatively high,and itssystem inertia was relatively low. The primary frequency regulation during island operation mainly relies onequipment such as diesel engines and energy storage. Using the fast adjustment characteristics of energy...
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Number of views:2085 Amount of downloads:3565
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LIU Mengmeng,LI Ruifang,MIAO Weili
Abstract: In order to optimize the controller structure of the permanent magnet synchronous motor(PMSM),a simplified speed control strategy for the PMSM based on genetic algorithm(GA)was proposed.The new controller mainly includes a direct voltage controller,which uses the motor model to achieve accurate speed track...
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Number of views:4747 Amount of downloads:3563
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CHI Yuhang,ZHAO Lu,GE Qiongxuan,LIU Xue,CHENG Shi
Abstract:Taking the switch tube open-circuit fault of dual bridge series resonant DC-DC converter(DBSRC)as the research object. Firstly,the basic working principle of DBSRC was summarized,and the open circuit faultcharacteristics of DBSRC converter were introduced. On this basis,the fault characteristics that can be...
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Number of views:1084 Amount of downloads:3558
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TONG Zhan' anxin,SU Jianhui,ZHANG Jian,DU Yan
Abstract: The requirements for wireless charging of automated guided vehicle(AGV)batteries are low voltageand high current,full-wave-synchronous-rectification(FWSR)can improve efficiency and reduce costs. Firstly,AGV wireless charging topology and working principle were introduced in detail. Secondly,aiming at the p...
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Number of views:2754 Amount of downloads:3557
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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:4229 Amount of downloads:3557
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YANG Ming, ZHANG Ruhao, ZHANG Jun,ZHU Haotian,SUN Yongping, CHEN Yangyang, XU Dianguo
Abstract: SCARA robot is especially suitable for assembly work because of its high speed, high precision and mechanism characteristics, so it is widely used in 3C, food and drug, automobile industry and other production processes, such as assembling circuit boards and components. First, the trajectory planning, incl...
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Number of views:6109 Amount of downloads:3549
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WANG Chao,CAO Wei,ZHANG Xuhang,QIU Chunfeng,CHEN Wei,LI Yun
Abstract:Based on the low-speed communication network,a multi-energy storage operation method of DCmicrogrid with improved power droop control was proposed so as to realize the balanced control in three aspects:state of charge(SOC)balance,rational power distribution among energy storage units and stable bus voltage....
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Number of views:2621 Amount of downloads:3547
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LI Yangyang,HU Jinlei,LAI Junju,WANG Wei,YANG Fan
Abstract: Aiming at the on-site live detection data of switchgear,a mean-shift clustering algorithm based onmulti-dimensional feature quantity was proposed to identify the abnormal partial discharge of switchgear. Theswitchgear partial discharge detection data which include dispersion,average distance percentage,con...
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Number of views:4258 Amount of downloads:3547