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DAI Yemin,LI Yukun,LIN Shunfu,BIAN Xiaoyan,LI Dongdong
Abstract: With the wide application of new energy grid connection technology,a large number of powerelectronic devices are connected to the power grid,and the power quality is affected by harmonic interaction. Aiming at the harmonic interaction problem of multi-inverter grid-connected system,the multi-input and mult...
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Number of views:4587 Amount of downloads:8969
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LIU Tao,CAI Xu,SUN Guoqi,WEI Xiaobin,CAO Yunfeng,ZHANG Lingyan
Abstract: As traditional condenser is replaced by static var generator(SVG),the dynamic reactive powercompensation can be provided by SVG. However,compared with traditional condenser,SVG lacks rotational inertia.Traditional research of SVG mainly focused on reactive power compensation and fault ride-through,and ther...
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Number of views:4998 Amount of downloads:8967
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YIN Xiang,WU Chaoqun,LIU Yan,CHENG Shi,ZHAI Liang,LI Xing
Abstract:Wind power and other fluctuating renewable energy sources pose serious challenges to the safe andstable operation of the power grid. Integrating energy storage technology with wind power can effectively mitigatethe volatility of wind power output and enhance grid frequency security. A dual adaptive particle...
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Number of views:1440 Amount of downloads:8956
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SHAYuheng,MEI Xin,LAN Jiao,HAN Fangxu,ZHAO Xuechen
Abstract: In view of the problems that the lack of unified data source,unified information standard,unifiedsupport platform for common services caused by multi system parallel in each stage of power grid enterprise projectmanagement,and resource and information "isolated island" caused by "chimney" system architectu...
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Number of views:4408 Amount of downloads:8936
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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:2853 Amount of downloads:8906
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LONG Zhengyu,WANG Xuhong,FAN Shaosheng
Abstract: In view of the traditional wind tower cleaning,painting,maintenance and other operations,therewas a high risk of artificial aerial work. In order to ensure the personal safety of workers and improve workefficiency,a wheeled climbing robot based on load balancing adjustment was designed. By analyzing the fo...
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Number of views:2863 Amount of downloads:8906
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WANG Zhifu,SUN Qingle,LI Haolong,WANG Xu,GUO Yifeng,LIANG Changchun,WANG Rui
Abstract: With the development of motor drive system of new energy vehicle and the increase in complexity and integration,testing of motor drive system has become an important part of vehicle development. But high-power motor drive testing is more difficult and has higher risks,especially for motor control system,tr...
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Number of views:6520 Amount of downloads:8878
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ZHANG Yuanbo,JI Wei,ZHANG Yun,DAI Zhihui,HE Jingyuan
Abstract:The traditional fault calculation method in the case of distribution network with multi-point Tconnected inverter interfaced distributed generator(IIDG)has the problems of complicated calculation process and large calculation amount. Therefore,a fault calculation method for new distribution systems with T-c...
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Number of views:1882 Amount of downloads:8862
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GUO Leilei,ZHU Linqiang,CAO Lingzhi,LI Yanyan,WANG Pengshuai
Abstract: The accurate estimation of rotor angle is an important prerequisite for realizing speed sensorless highperformance vector control of permanent magnet synchronous wind generator. In the speed sensorless control ofpermanent magnet synchronous wind generator based on disturbance observer,the traditional angle...
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Number of views:4499 Amount of downloads:8817
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WU Haoting,LIN Song,XIAO Feng,KE Lingqiang
Abstract: The research of virtual machine in substation plays an important role in many fields. In view of thelow maintenance efficiency of virtual machine substation,a virtual machine substation maintenance system based on virtual reality(VR)technology was designed. Using VR technology,the three-dimensional operati...
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Number of views:3501 Amount of downloads:8802
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TAO Jiagui,HU Shengnan,DAI Jianzhuo,ZHANG Sicong
Abstract: Aiming at the problems of complex feature extraction and low classification accuracy of traditionalmethods in human behavior recognition(HAR),a behavior recognition model based on deep belief network-support vector machine(DBN-SVM)was proposed. Firstly,in order to better capture the periodic changes of use...
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Number of views:2027 Amount of downloads:8775
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ZHANG Chunli,LIU Hongwen,FANG Pengxing,CHAI Chenchao,ZHANG Wenqiong
Abstract:Incidents such as the burning of electromagnetic voltage transformers(PT),damage to primaryharmonic suppressors,and fuse tripping occur frequently in low and medium voltage distribution systems due toferroresonance,severely affecting the safe and stable operation of the system. Therefore,through theoretical...
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Number of views:2473 Amount of downloads:8755
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LI Lingxin,JIAO Yuping,SUN Jiacheng,DENG Fujin,ZHANG Qi,REN Biying
Abstract: High voltage converter is often used in high voltage direct current(HVDC)transmission system tocontrol power supply nearby at high potential. However,the high bus voltage and its wide range fluctuation in themodule pose a challenge to the high reliability design of power supply. To solve this problem,a hig...
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Number of views:3398 Amount of downloads:8735
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MAO Fang,MIAO Xinzhao,LIANG Qianyuan,TANG Fangwen
Abstract:Compared to partial life cycle assessment,the full life cycle assessment is more complex anduncertain,with the difficulty of comprehensively considering carbon emissions and their multiple influencingfactors at each stage,resulting in fuzzy assessment boundaries and dynamic repetition of the process. To thi...
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Number of views:2416 Amount of downloads:8725
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JI Liang,XU Jun,GUAN Ya,CUI Jingxia,HE Jie,PAN Yihang
Abstract:The three-core underground cable in the distribution network works in a harsh environment. Due tothe influence of aging,external force,high temperature and humidity,the insulation of long-term live operation iseasily damaged and causes faults. Aiming at the single-phase grounding fault of cable in distribut...
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Number of views:2333 Amount of downloads:8698