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NIU Zongxian,FAN Bo,FU Yulin,WANG Chunguang,WU Xiaodan,YANG Chenhui
Abstract: Under traditional PI parallel control strategies,synchronous control systems of multi-motor rigidconnection structure have the problem of unbalanced motor torque output,and there is even a serious risk of shaftbreakage. Taking the rigid connection structure of multi-motor gear transmission as the research ...
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Number of views:2125 Amount of downloads:5991
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PENGTao
Abstract: The local leakage signal of high-voltage insulation equipment is weak and its characteristics are notobvious,which can only explain whether there is discharge. There is a phenomenon of missing judgment andmisjudgment in the actual positioning process,which is difficult to accurately locate the high-voltage...
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Number of views:2125 Amount of downloads:4893
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LI Zhijuan,WU Dan,LEI Ting,WANG Ning,DUAN Yan,MA Hongen
Abstract: Aiming at the problems of frequent failures and untimely maintenance of DC charging pile,a faultearly warning method of DC charging pile based on soft classification model was proposed. Based on the currentsequence and voltage sequence of the charging pile in the charging process,the differential sequence o...
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Number of views:2124 Amount of downloads:5979
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ZHANG Xing,LIU Pingfei,ZHANG Liuli,ZHANG Yuwei,JIN Yu,XIAO Qian
Abstract:Under the promotion of carbon peak and carbon neutrality,in order to effectively reduce the carbonemissions of distributed generators in islanded AC/DC hybrid microgrid clusters,a distributed low-carbon controlstrategy was proposed. Firstly,the topology of the islanded AC/DC hybrid microgrid cluster was giv...
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Number of views:2114 Amount of downloads:9525
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HE Kuiyuan,YU Jiangtao,ZHU Qi,CAI Hui,GUO Qian,WEI Dong
Abstract:Aiming at the adverse effects of large-scale electric vehicle charging load on the distributionnetwork,based on vehicle to grid(V2G)technology,a V2G reactive dispatching strategy combining the nondominated sorting genetic algorithm and the local optimization of global objectives algorithm was proposed. The ...
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Number of views:2113 Amount of downloads:6834
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WU Ning,CAI Jie,LIANG Gonghao
Abstract: As an important part of smart grid monitoring system,the security of power wide area measurementsystem is very important. Therefore,in order to ensure the integrity and confidentiality of communication data inpower wide area measurement system and the communication security between terminal devices in the ...
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Number of views:2113 Amount of downloads:6287
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SHI Xuelei
Abstract:Under the power grid dispatch mode of "source follows load",different AC power supply modes arerequired in the market. To meet market demand,an uninterruptible power supply(UPS)system compatible withvarious AC power supply modes was designed. The modes of the system were selected by switching devices.Accord...
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Number of views:2112 Amount of downloads:5758
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QIU Guihua,TANG Zhirui,CHEN Yuting
Abstract:Aiming at the challenges of data heterogeneity and multi-source in distribution networks,a selfsupervised multi-source measurement data fusion method based on coding-decoding attention mechanism wasproposed. This method automatically captured the correlation between data through self-supervised learning,and...
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Number of views:2111 Amount of downloads:7771
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SHI Mingming,LIU Ruihuang,WANG Xinda,WANG Jiaming,ZHANG Chenyu
Abstract:To address the parameter dependency issues present in traditional model predictive controlalgorithms,a novel model predictive control method that employed an ultra-local model and updated its parameters in real-time using the recursive least squares (RLS)method was proposed. This approach eliminated the dep...
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Number of views:2110 Amount of downloads:9583
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LI Hongqiang,LU Guangming,ZHOU Lei,WEI Yawei,ZHANG Hanhua,MA Jing
Abstract: In order to improve the inertia support ability of grid-connected converter of new energy based onDC capacitor energy virtual inertia control to the power system,an adaptive virtual inertia control method based onlinear quadratic regulator(LQR)was proposed. On the basis of analyzing the dynamic characteris...
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Number of views:2110 Amount of downloads:6710
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LIU Fang,XU Yunyu,HE Guoqing,LI Guanghui,LIU Shiquan,LIU Wei
Abstract: With the increasing permeability of distributed generation,the grid becomes weaker and weaker. Itis very important to help the system achieve low voltage ride through(LVRT)when the grid voltage drops underweak grid. Aiming at a series of problems such as over-current,voltage collapse and system oscillation...
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Number of views:2110 Amount of downloads:6548
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GUO Jiajun,XU Zhi,ZHAI Baoyu,CHEN Yutian,CHEN Junru
Abstract:Aiming at the low voltage ride through(LVRT)problem of the combined grid-connected systemwith new energy-energy storage under the control of the grid-forming converter,an additional voltage limitercontrol scheme based on the traditional LVRT was proposed. Firstly,the shortcomings of the traditional LVRTstra...
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Number of views:2109 Amount of downloads:6952
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QU Chenming,GUO Kunli,BAI Yang,LI Hang,ZHU Tinghua,MA Peng
Abstract:Considering the influence of grid voltage background harmonics in weak current networks,reverseharmonic peaks appear in the grid-connected current under weighted average current control(WACC),making itimpossible for the system to achieve zero pole cancellation and thus affecting the stability of the grid-co...
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Number of views:2108 Amount of downloads:7676
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DENG Jiahao,LIN Lingxue,ZHU Lin,WU Zilong
Abstract:Up to now,the distribution network planning project optimization method rarely considered theimpact of the speed of load growth on the power supply efficiency of the project and the year when the project isselected,and rarely considered the urgency,technical benefit and economic benefit of the project at th...
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Number of views:2107 Amount of downloads:5243
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ZHANG Di,HUANG Lu,CUI Jing,SONG Zhiwei
Abstract: The AC voltage sensors are used to measure the grid voltage,which brings high hardware cost,difficult installation and low reliability. In order to realize that grid voltage sensors are not necessary,virtual fluxwas introducted to model prediction power control algorithm for cascaded H-bridge rectifier. Th...
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Number of views:2107 Amount of downloads:6910