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DI Ya，ZHANG Jinhua，QIAN Yang
Abstract：In DC power grid，when serious metallic short circuit fault occurs in the DC side line of voltagesource converter（VSC），the fault current has the characteristics of a fast rising speed and a large peak. The DCcircuit breaker is used to isolate the fault，which greatly increases the requirements for the quick a...
更多Number of views：426 Amount of downloads：323
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SI Dajun，WANG Jie，SHU Banggui，ZHANG Guangbin，SHU Hongchun
Abstract：The load of a submerged arc furnace has many advantages，such as large single-unit regulationcapacity，good communication conditions，easy control，and low economic retrofitting，making it an importantflexible regulation resource for the power grid. However，there is currently a lack of effective digital simulati...
更多Number of views：421 Amount of downloads：430
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FANG Lei，XU Jun，ZHAO Yi，XING Xiaofan，MAO Huan
Abstract：The traditional technical line loss prediction method of low voltage station area has some problems，such as relatively extensive calculation，requiring underlying physical topology，and relying on influencecharacteristic data. In recent years，a technical line loss and meter error joint estimation technical ro...
更多Number of views：420 Amount of downloads：306
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MA Zun，CHEN Haoying，DENG Can，CHEN Yong，GUAN Lin
Abstract：The development of modern power systems with wide span，low inertia，and complex structuremakes the frequency stability problem increasingly prominent，and the spatial-temporal distribution characteristicsof frequency are distinct. Taking the actual power grid as the object，the impacts of large-scale new energ...
更多Number of views：418 Amount of downloads：325
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ZHANG Xiaolian，WU Qichuan，HAO Sipeng，Qin Shiqiu，HU Qi，ZHANG Jinhua
Abstract：The participation of wind power and energy storage in primary frequency regulation of power gridcan make better use of the advantages of wind power and energy storage for frequency regulation，which hasgradually become a new trend. However，there are some problems in the coordination of wind power system ande...
更多Number of views：418 Amount of downloads：353
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CHU Wenchao
Abstract:Transmission line tower as the normal operation of the power system of the necessary equipment，itsgrounding resistance accurate detection for the safe and stable operation of the entire power system is particularlyimportant，especially in the judgment of lightning protection performance and other aspects. Th...
更多Number of views：417 Amount of downloads：451
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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...
更多Number of views：411 Amount of downloads：273
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LIU Zhen，ZHU Zimin，WANG Xiaoyun，NAN Dongliang，DUAN Yu，WU Xiaofang
Abstract：As the penetration of renewable energy in power systems increases，converter-based devices aregradually becoming dominant in the grid. In terms of system frequency stability support，grid-forming converters，which can provide both active inertia support and fast frequency response services，hold great potential...
更多Number of views：403 Amount of downloads：312
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LIU Yanlong，HAN Pingping，CHEN Xiaoguang，GUO Jialin
Abstract：With the increasing penetration of new energy equipment，while alleviating the environmentalproblems caused by fossil energy，it also increases the frequency instability of the system. Photovoltaic（PV）andother new energy equipment to participate in the grid frequency regulation is an effective way to improve ...
更多Number of views：400 Amount of downloads：370
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DING Chaohui，YAO Fei，JANG Jun,GAO Ang，SHAO Gao
Abstract：The traditional predictive current control for three-phase LCL grid connected inverters has theproblems of large steady-state ripple and unstable switching frequency，which is not conducive to the quality of grid connected current and the design of filters. Therefore，an improved three vector fixed frequency ...
更多Number of views：399 Amount of downloads：455
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YAO Ying，GU Bing，FANG Zhengnan
Abstract：With the wide application of solar photovoltaic panels，the detection of hidden dangers and faults ofphotovoltaic panels has become more and more important. In order to improve the inspection efficiency ofphotovoltaic panels and the accuracy of defect detection，a target detection algorithm based on attention...
更多Number of views：396 Amount of downloads：277
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BU Xianshuai，HE Shan
Abstract：In order to improve the accuracy and stability of short-term wind direction prediction，a winddirection prediction method based on lidar wind data and an improved nonlinear echo state network（NESN）model was proposed.First of all，wind direction data 100 meters ahead of the wind turbine was obtained by laser w...
更多Number of views：396 Amount of downloads：326
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YANG Zhaohui，WEI Huadong，HE Liuqing，ZHANG Hao，PENG Guoping，SHI Ben
Abstract：Aiming at the problem of large switching loss of modular multilevel converter（MMC），startingfrom the switching frequency optimization strategy，the existing switching frequency optimization strategy wasimproved，and the accurate analytical formula of sub-module capacitor voltage based on the real-time value of...
更多Number of views：392 Amount of downloads：419
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CHEN Yong，LI Jianbiao，CHEN Jianfu，PEI Xingyu，WU Hongyuan，HUANG Chunyu
Abstract：The characteristics of the DC side of the DC distribution network are multi bus cascades，multipleconverters，and strong coupling of the buses，which can easily cause harmonic resonance and threaten the safeoperation of system equipment.Aims at the problem of unclear resonance interaction and harmonic transmis...
更多Number of views：381 Amount of downloads：117
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XU Dacheng ，YIN Chunya ，ZHOU Jiayang ，LI Fengting ，LIU Jiangshan
Abstract：To mitigate the fatigue load generated by wind turbine participation in primary frequency regulation，a primary frequency regulation strategy considering the fatigue load of wind turbine was proposed based on themechanical dynamic response characteristics and control device operation characteristics of wind ...
更多Number of views：380 Amount of downloads：322
