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SUN Jia,HAN Shuntian,NI Lianghua,LÜ Ganyun
Abstract:While a large number of distributed generator(DG)keep penetrating into distribution networks,the problems such as voltage violation and network power congestion become more and more serious. Soft open point (SOP)can quickly achieve flexible interconnection and accurate power flow control,effectively address...
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Number of views:2520 Amount of downloads:7252
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SUN Chuanjie,TIAN Kai,XU Wenyuan,LU Beibei,LI Nan
Abstract:A brake unit based on IGCT was designed for different applications of frequency converter inindustrial scenes,especially the medium voltage frequency conversion system without feedback function. IGCTwas used as the main power device,and the parameters and characteristics of IGCT was analyzed. According to t...
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Number of views:2518 Amount of downloads:10945
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LIU Zhijian,ZI Chao,LI Pengcheng,GUO Cheng,LIU Jie,HUANG Wei
Abstract: Aiming at ultra-low frequency oscillation in power system caused by hydraulic turbine governingsystem,an additional damping control strategy for governing side was developed. Firstly,according to the damping torque method,the negative damping generated by the hydraulic turbine governing system was regarded...
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Number of views:2517 Amount of downloads:6366
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JIANG Yang,CHEN Zhong,WU Yongkang
Abstract:The permanent magnet synchronous generator(PMSG)is prone to current overstep in unbalancedgrid,which affects the reliability of grid-connected system. To solve this problem,low-voltage ride-throgh controlstrategy based on direct power control was proposed. In this strategy,the direct power inner loop was us...
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Number of views:2516 Amount of downloads:8393
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AN Juan,HUANG Cunqiang,LI Junxian,LIU Xingwen,WANG Yusi
Abstract:The intermittency and uncertainty of large-scale distributed new energy bring great challenges to thestable operation of power system. Intelligent soft open point(SOP)and energy storage are effective ways to absorb distributed new energy in spatial and temporal dimension,and play an important role in improv...
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Number of views:2515 Amount of downloads:11252
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ZHANG Boyu,ZHANG Xiaoli,FENG Rui,ZHANG Zhaobo,CAI Siqi ,MA Xiaoxuan
Abstract:Based on the principle of magnetic coupling resonance technology,a bilateral LCC topologycompensation network parameter design method was adopted. Firstly,the mathematical model of the main circuitof the bilateral LCC topology was analyzed,and the inductance ratio of the coil self-inductance and the seriesc...
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Number of views:2513 Amount of downloads:8909
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PENG Yinzhang,WANG Chen,NAN Dongliang,XIAO Chao,YANG Shuai
Abstract:AC-DC hybrid power grid can balance the power flow during the operation of the power system ina large range,which is conducive to improving the access capacity and access range of large-scale access of newenergy to the power grid,which is an important trend in the development of modern power grid. In order ...
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Number of views:2513 Amount of downloads:8277
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CAO Dayou,LÜ Junmu,BAI Yansong,LI Guorong,ZHOU Yan
Abstract:In order to reduce the carbon emissions of large ships,photovoltaic(PV)power generationtechnology began to be applied to ship power systems. However,due to the limited capacity,low inertia and largeload difference of the ship power system,the traditional virtual synchronous generator(VSG)control strategy ca...
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Number of views:2511 Amount of downloads:12903
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ZHANG Pengcheng,TUSONGJIANG Kari,WANG Hailong,YILIHAMUYaermaimaiti,LU Haotan,RUAN Jiayang
Abstract: In order to improve the accuracy of automatic reading of tilted meter images,a novel algorithmbased on ORB and improved region growing method was presented. Firstly,the ORB algorithm was applied to detect the feature points of the target image and the template image,and the transformation matrix used to ac...
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Number of views:2507 Amount of downloads:8744
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PENG Yanlai,FAN Yong,YANG Xiaofeng,YANG Hongyu,WANG Zhixin
Abstract: Aiming at the problems that the amount of data in wind farm SCADA data is huge and it is difficultto classify the fast fault of wind turbine generator,a dynamic threshold AdaBoost algorithm(DTAdaBoost)wasproposed. Based on AdaBoost algorithm,the dynamic threshold was introduced to screen the sample set dat...
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Number of views:2507 Amount of downloads:7165
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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:2502 Amount of downloads:9703
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YUAN Shaowei,LI Yuxiang,JIANG Jie,ZHANG Bei,ZHU Qing
Abstract:In order to solve the problems of intermittent and fluctuating distributed energy,took three majorphysical entities in the demand response project,namely system operator,load aggregator and load end user,as the research object,the transactions between supply and demand within the power system composed by the...
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Number of views:2501 Amount of downloads:9101
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JIAO Jinghai,LI Jie
Abstract: To solve the problem of low identification accuracy of partial discharge(PD)for electric multipleunits ethylene propylene rubber(EPR)cable terminal defects,an on-board cable terminal defect identificationmethod based on improved residual network was proposed. Firstly,cable terminals with four typical insul...
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Number of views:2499 Amount of downloads:9776
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YANG He,CHEN Zhaoyu,ZHANG Jinhua,XU Jing,WANG Jingpeng,ZHU Shichang
Abstract:In response to the issues of large volume,high cost,and complex control algorithms associated withvoltage regulation equipment in new energy distributed power distribution areas,a two-stage voltage regulationcircuit topology based on a DC-link capacitor-free structure was proposed. Based on this topology,a ...
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Number of views:2497 Amount of downloads:14107
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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:2487 Amount of downloads:10489