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HU Qingjun,CAO Xinhui,FENG Yu,ZHU Lipeng,ZHAO Wenjing,WEI Yushan
Abstract: The process automation control system L2 of an aluminum zinc plating production line wasexplored. In response to potential production faults on the production line,a process data control module of theprocess automation control system was provided. Through the analysis of process data,the fault location of ...
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Number of views:583 Amount of downloads:590
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LI Yunwang,CHEN Junde,ZHANG Daping,SANG Yun,HAN Xiaolei
Abstract:An adaptive active arc suppression method based on S-transform correlation degree for distributionnetwork unidirectional grounding was proposed to effectively eliminate single-phase grounding fault arc indistribution network and improve power system stability. The time series data of zero-sequence current o...
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Number of views:578 Amount of downloads:373
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YANG Zhenyu,WANG Wei,XU Wenzheng,ZUO Zhiling,CHEN Changqing
Abstract:The telecommunication power supply applied in 5G base stations can save energy consumption byreducing the output voltage when the equipment works in standby state. Nevertheless,frequent and rapid outputvoltage regulating of the converters is challenging. To solve this problem,the concept of partial power co...
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Number of views:573 Amount of downloads:580
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KE Ting,TIAN Songlin,ZHOU Hai
Abstract:In order to solve the problem of low accuracy of small substation fault diagnosis,a small substationfault diagnosis model based on cooperative game and cloud model was proposed. By analyzing the characteristicsand causes of faults,the diagnosis index system was established. Entropy method and expert weighti...
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Number of views:573 Amount of downloads:752
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WANG Chunhui,QU Xiaowei,WANG Mingyue,HAN Song,LI Teng
Abstract:In order to improve the debugging and fault monitoring and analysis capabilities of inverterproducts,the design scheme of network version process data acquisition and analysis software was proposed.Thecomposition and implementation of the software system were discussed,and the technical means such as multit...
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Number of views:571 Amount of downloads:555
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CHEN Ling
Abstract: With the large increase of load users,the load side adjustable resources gradually increase,and theload side demand response(DR)resources are used to participate in microgrid scheduling to improve the level ofnew energy consumption. In order to give full play to the scheduling potential of DR resources and...
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Number of views:568 Amount of downloads:663
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XIA Tao,LIU Liang,ZHANG Yangfei,LIU Haitao,MENG Gaojun
Abstract:Aiming at the problem of large output voltage fluctuation and long recovery time of three-phasepulse-width modulation(PWM)rectifiers when the load changes,an improved single-neuron gradient learningcontrol strategy was proposed. Due to the poor adaptability of the traditional PI controller parameters when t...
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Number of views:566 Amount of downloads:577
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LÜ Yi,LIANG Wenbo,WANG Qing,LIU Entao
Abstract: The traditional active distribution network location and capacity determination ignores the multienergycomplementary coordination characteristics of the energy system,which led to high cost. Therefore,anactive distribution network location and capacity determination method based on energy interconnection w...
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Number of views:566 Amount of downloads:476
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LIANG Zhen,WANG Yong,BAI Haibin,ZHANG Zhiyu,SUN Qianhao,CUI Bin
Abstract: Based on full-bridge(FB)and half-bridge(HB)sub-modules(SMs),the conventional hybridmodular multievel converter(MMC)is a typical topology of MMC with DC fault clearing ability. However,theproportion of FB SMs in conventional hybrid MMC is usually greater than 50%,so as to increase the cost andlosses. To sol...
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Number of views:557 Amount of downloads:632
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CHEN Xiaoru,HUANG Longyi,YANG Mingjia,LAI Shengjie,CHI Zibin,XIA Chengjun
Abstract:In view of the lack of flexibility in the input and exit of the current metal sheath loop suppressiondevice for high voltage cables,the problems such as excessive induced voltage of the sheath and excessive powerloss were not considered when determining the suppression impedance value,a loop suppression dev...
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Number of views:556 Amount of downloads:474
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HUANG Licai,YANG Xu,ZHANG Jing,LUO Chuanxian,CHEN Jia,ZHANG Guozhi
Abstract:In view of the frequent occurrence of omissions and false alarms of partial discharge insulationdefects in on-site gas insulated switchgear(GIS),the partial discharge multi-source detection test platform was built by using true GIS to carry out the intermittent discharge test of metal contamination defect o...
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Number of views:554 Amount of downloads:499
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ZHANG Xudong,WANG Yangyang,LI Xiaolong,LÜ Jin
Abstract:Aiming at the problem that the ripple content of current and voltage in cycloconverter speed controlsystem is large and the ripple period is time-varying,the real-time sampling value is not suited for feeding back tothe speed control system directly,a variable period mean sampling algorithm was proposed. Fi...
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Number of views:546 Amount of downloads:495
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YU Jialin,GUO Jinrui,TU Xiaodong,LIU Weiliang,ZHONG Weidong
Abstract:To address the issue of over/under voltage in the distribution network due to the scale access ofdistributed generators and flexible loads under the "double carbon" target,an active distribution networkscooperative voltage control strategy based on the active support of electric vehicles(EVs)aggregation wasp...
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Number of views:544 Amount of downloads:516
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WANG Yingjie,ZHOU Hailan,CHEN Yongfa,BAI Feiying
Abstract:When the switching frequency of the four-quadrant rectifiers in different multiple units deviates,thecurrent will experience low-frequency oscillation,which is not conducive to the operation of the traction powergrid. Therefore,a matrix small-signal modeling method for SPWM comparators was proposed to analy...
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Number of views:531 Amount of downloads:640
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ZHANG Rui,XIAYan,HUANG Guiping,CHEN Renzhao,YANG Yili
Abstract:Aiming at the poor robustness and system vibration problem of asynchronous motors under thetraditional sliding mode control,a variability coefficient power exponent reaching law(VCPERL)was proposed todynamically change the control coefficients according to the position of the sliding mode surface,and the sl...
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Number of views:530 Amount of downloads:545