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YANG Yong，ZHANG Xujun，LIU Wenfei，NIU Haoming，ZHAO Jinguo，YANG Rui
Abstract：The integration of new energy units on a large scale has introduced numerous adverse effects on thestability of system operation. Analysis of mechanisms and identification of impedance characteristics in gridconnected inverter（GCI）for new energy units are key to effectively addressing these issues. Therefor...
更多Number of views：959 Amount of downloads：5644
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RUAN Bo，YI Bonian，YE Xuecheng，LE Jian，LANG Hongke，REN Yi
Abstract：The electricity power price setting mechanism will be fundamentally reformed with the continuousadvancement of a new round of electricity market-oriented reform. Presently，some provincial and regional powergrid enterprises are facing the problem of large fluctuations in electricity prices，which is not condu...
更多Number of views：959 Amount of downloads：2028
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LUO Meiling，HAN Zhongxiu，YU Xiaojun，WU Jianyun，HUANG Weibing
Abstract：The islanding detection method is a necessary method for grid-connected PV systems，but，thecurrent islanding detection method is prone to misjudgement when encountering grid operation states such as highresistance short-circuit ground faults and large-capacity load casting. For this reason，an islanding detec...
更多Number of views：949 Amount of downloads：2332
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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：946 Amount of downloads：2020
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HAN Shaohua，MAO Wangqing，GE Xuan，XU Lei，CHEN Ken，LIANG Rui
Abstract：Compared with large photovoltaic systems with isolation transformers，distributed photovoltaicsystems have small power and volume. In order to improve efficiency，non-insulated inverters are often used indesign，but photovoltaic leakage current endangering system safety is also generated. Taking the single-pha...
更多Number of views：945 Amount of downloads：2121
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LIU Xin，WEI Lixin，ZHANG Feng
Abstract：In addressing the issue of the electrical drive system of oil drilling rigs encountering instability inactuator output due to interference from multi-source random noise，a novel approach was proposed. The Fractaltheory was utilized to isolate random noise in the drilling rig electrical control system. The p...
更多Number of views：928 Amount of downloads：3588
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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：928 Amount of downloads：1808
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MIAO Haidong，ZHANG Qing，YAN Yong，ZHANG Lina，HUO Tingting，HAN Linjie
Abstract：In order to eliminate the problem of low inertia and large frequency fluctuation in wind power gridconnected system when power disturbance occurs，an improved virtual inertia control strategy was proposed. Acooperative control strategy of adaptive moment of inertia and damping coefficient was introduced in t...
更多Number of views：928 Amount of downloads：2011
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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：928 Amount of downloads：2170
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XU Deshu，LIU Yanfang，ZHAO Hao，MA Zhiqiang
Abstract：The integrated energy system contains adjustable resources and flexible operating modes，which to acertain extent play a supporting role in the power grid and assist in optimizing its operation. Based on this，anoptimal operation model of integrated energy system considering support capacity to power grid was...
更多Number of views：922 Amount of downloads：2276
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LIU Zhipeng，QU Zhe，YU Cong，WU Qian，CHEN Bo，FANG Yaqi
Abstract：Over the years，machine learning has made some breakthroughs in the insulation defects of gasinsulated switchgear（GIS），but the traditional methods have the disadvantages of incomplete information，excessive reliance on artificial feature extraction and low diagnosis rate. In order to solve these problems，adia...
更多Number of views：918 Amount of downloads：2004
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LU Lin，KONG Fanting，ZHANG Chunxiang，CHEN Jian，WANG Lianjie
Abstract：Static var generator（SVG）can governance power quality，energy conservation and reduceconsumption，furthermore it is an energy consumption product.The reasonable evaluation of the energy saving ofthe device has become an urgent problem to be solved. The power saving measurement technology of products wasstudie...
更多Number of views：906 Amount of downloads：1896
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FAN Peilin，HU Pengtao，XUE Jianli，LIU Zheng，HUANG Jinming
Abstract：Voltage source converter （VSC） is prone to low-frequency oscillations of 100~101Hz whenconnected to weak AC power grids. The mechanism of improving the control strategy of VSC on the traditionalinverter side to suppress low-frequency oscillations（LFO）in the AC power grid is to transfer the oscillations from...
更多Number of views：899 Amount of downloads：2339
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REN Juan，SONG Haiming，XIN Chaoshan，WEI Junchen
Abstract：Energy storage is a kind of high-quality flexible resource to deal with the uncertainty of powersystems with high penetration of new energy. It is of great significance to develop an optimized operation strategyfor energy storage that meets the uncertain demands of the system while considering the life loss...
更多Number of views：897 Amount of downloads：2145
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LI Wei，LI Yingqi，HOU Leihao，LI Junpeng，LIU Dejian
Abstract：The main circuit faults of the four-quadrant rectifier and the corresponding influences were analyzedand summarized，focusing on the analysis of the voltage and current parameter equations in the pre-chargingprocess of the intermediate DC link，and the estimation method of the converter input current and the ...
更多Number of views：888 Amount of downloads：1811
