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KONG Lingqing，HE Shan，DONG Xinsheng，LI Ji，YANG Dingqian，HU Shuai
Abstract: In order to solve the problem of voltage and frequency fluctuations at the grid-connected point of thepermanent magnet wind turbine during high and low voltage ride-through，a virtual synchronous generator（VSG）was proposed to control the grid-side converter to improve the inertia and damping of the permanen...
更多Number of views：1226 Amount of downloads：1285
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CHENG Shiwei，ZHAO Shiwei
Abstract: To cope with the increasing demands of the application of high step-up DC-DC conversion，such asthe absorption of renewable energy，electric vehicles and aerospace，a high step-up DC-DC converter based onthree-winding coupled inductor with low voltage stress was proposed by utilizing magnetic coupling technol...
更多Number of views：1224 Amount of downloads：934
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WANG Yuqi，WANG Yufeng，GUO Yubao
Abstract: The equipotential switching algorithm of the traditional mechanical static compensator（MSC）device had many limitations in the operation of the single machine，such as the long operation time of themicrocontroller control chip，the poor convergence of the calculation results had been affected by the hardware，...
更多Number of views：1216 Amount of downloads：850
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YIN Xiang，ZHANG Xiaojun，FENG Xinjia，CHENG Shi，TAO Yuxin，XIAYuande
Abstract：As the penetration rate of new energy and power electronic equipment increases，the inertia anddamping of the power system decrease，and the stability decreases.The grid-forming control technology builds avoltage source to support the stable operation of the large power grid through the converter，so as to pla...
更多Number of views：1212 Amount of downloads：939
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XIAO Longhai，FU Ming，JIN Hai
Abstract: Aiming at the problem of power deviation caused by uncertain influence of renewable energy andelectric heating and cooling loads in the integrated energy system（IES）to realize integrated energy system optimaldispatch，a double-layer IES optimal dispatch strategy was proposed by combining the stochastic mode...
更多Number of views：1212 Amount of downloads：1075
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GONG Yanchao，YANG Haiyun，MIAO Junjie，GAO Zhi
Abstract: Parallel capacitor banks can effectively improve the efficiency and quality of power transmission inthe application process of power distribution network. However，due to some unreasonable factors in the switchingmode of power capacitors，it will also generate overvoltage，thus affecting the power grid. stabi...
更多Number of views：1211 Amount of downloads：879
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YAN Chengshan，QIU Mingquan，ZHANG Lijun，ZHANG Guorui，WANG Chunlei
Abstract: Aiming at the problems of regional large-scale photovoltaic construction and access，as well as thelack of control of existing distributed energy，the construction and operation control method of microgrid groupwere put forward，which extracted a three-level and two-stage coordination and interaction system s...
更多Number of views：1209 Amount of downloads：2166
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WU Xiangyu，XUN Chao，XIAO Fen，LIN Keyao，LIN Chaoqun，CHEN Bojian
Abstract: Existing long-term electricity consumption prediction methods are difficult to solve the problem ofvariable selection，which leads to inaccurate prediction results of power consumption. Therefore，combining theradio frequency variable selection in random forest（RF）algorithm with long short-term memory（LSTM）r...
更多Number of views：1209 Amount of downloads：1179
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SONG Hui，YUAN Longxiang
Abstract: Aiming at the problem of single hot spot temperature under average state and long response timeunder different load states，in order to improve the response speed，a 10 kV transformer load state detection method based on K-means algorithm was designed. The 10 kV transformer load model was established，the ove...
更多Number of views：1209 Amount of downloads：1087
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YUAN Minxin，YIN Zhonggang，LUO Peien，ZHANG Yanqing
Abstract: To address the problem of the long detection time of the current detection method during the opencircuit fault diagnosis of inverter insulated gate bipolar transistor（IGBT）of the permanent magnet synchronousmotor（PMSM）drive system，an error current polarity method based on model predictive current control（M...
更多Number of views：1202 Amount of downloads：869
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LI Wei，LUO Cheng，YANG Kai，WANG Xuming，QIU Lingfeng，HUANG Yuhao
Abstract：When the permanent magnet assisted synchronous reluctance motor（PMaSynRM）runs at highspeed with flux-weakening control，the DC bus voltage utilization is not high，and the efficiency and torque output capacity of the motor are low. Therefore，a flux-weakening control strategy of permanent magnet assistedsynchr...
更多Number of views：1193 Amount of downloads：706
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GUAN Wei，DONG Lei
Abstract：Among the junction temperature monitoring methods of insulated gate bipolar transistor（IGBT），the temperature-sensitive parameter method has attracted wide attention because of its fast response speed，low cost and easy on-line detection. Previous studies have shown that the gate threshold voltage（VTH）among t...
更多Number of views：1191 Amount of downloads：1284
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ZENG Jiang，XIONG Taojun，XIE Baoping，ZHAO Benqiang，MA Haijie
Abstract: Aiming at the deficiency that the traditional active power filter（APF）can only control the localharmonic source，a harmonic active defense system（HADS）based on virtual harmonic resistance was proposed.The principle of harnessing harmonics in distribution network by HADS was analyzed，the HADS simulationmodel...
更多Number of views：1183 Amount of downloads：923
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WANG Xuming，LUO Cheng，XIONG Zhi，YANG Kai，XU Zhijie，LI Yinbin
Abstract：In response to the complex working environment of pumped storage energy units，wheredisturbances such as temperature variations are prominent，and considering the insufficient control precision oftraditional vector control for brushless doubly-fed machine（BDFM），a study was conducted on a control strategybased...
更多Number of views：1179 Amount of downloads：859
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YANG Fan，WANG Huanmin
Abstract：With the development of power electronics technology，microgrid type energy storage inverters withvirtual synchronous generator（VSG）function have also been widely used. In VSG technology，due to the presenceof inertial frequency regulation loop and voltage regulation loop，the inverter can realize the grid fre...
更多Number of views：1175 Amount of downloads：765
