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ZHAO Chencong,XIE Zhouhua,ZHOU Feihang
Abstract:Unbalanced grid voltage will affect the normal grid connection operation of the wind energyconversion system(WECS),resulting in fluctuations in system output power and distortion of output current. Inaddition,in the actual permanent magnet synchronous wind power system,there may be uncertainties in thenetwo...
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Number of views:601 Amount of downloads:910
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ZHOU Jun,XIAO Yuanbing,YAN Huamin,LU Jingjing,XU Tiefeng,ZUO Fanglin
Abstract:In order to improve the power coordination ability among microgrids in the microgrid group,it isnecessary to consider the correlation between renewable energy generation output and the difference in load timedistribution in different regions in the microgrid group planning. A scenario generation method that...
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Number of views:599 Amount of downloads:479
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QIN Gang,ZHANG Changqing,JIANG Xuejiao,ZHONG Lei,ZHOU Chaojun,WU Min
Abstract:During the operation of high-voltage DC power grid,due to factors such as load characteristics andvoltage fluctuations,the instantaneous power characteristics such as capacitor current and harmonics are morecomplex,which increases the difficulty of identifying faults in the power grid system. Therefore,a bi...
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Number of views:599 Amount of downloads:581
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BAI Yansong,LI Guorong,CAO Dayou,ZHOU Yan
Abstract:Owing to the influence of wave fluctuation,the output power of ship photovoltaic(PV)powergeneration system is in the state of fluctuation,which significantly affects the quality of electricity and thereliability of power supply,and the sun-tracking algorithm of the land-based PV system fails to adapt to theo...
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Number of views:598 Amount of downloads:660
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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:594 Amount of downloads:296
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XU Zhance,XU Wei
Abstract:Aiming at the problem that the photovoltaic grid-connected inverter system operates under multipledisturbances,an linear active disturbance rejection control(LADRC)grid-connected strategy combined withphotovoltaic system was proposed. Firstly,the dynamic process of PV grid-connected system was analyzed andm...
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Number of views:591 Amount of downloads:666
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PENG Fei,TIAN Xu,LIU Fei,XU Decao,FANG Shiwen,TIAN Xu
Abstract:The integration of large-scale wind power,photovoltaic and other renewable energy resources forthe power system will greatly change the power supply characteristics,reducing the inertia of power system andthreatening the stability of transient frequency. The virtual synchronous generator(VSG)technology can ...
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Number of views:591 Amount of downloads:604
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SUN Yueyue,LI Mengda,PEI Guangyao,ZHU Hanghang,NING Han
Abstract:Since the compressed air energy storage system grid-connected inverter voltage is always influencedby voltage fluctuations of the power grid with little problem,for the sake of ameliorating the dynamic and stableperformance of the DC bus voltage of the inverter on the side of the grid and the actual output ...
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Number of views:588 Amount of downloads:500
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QU Bo,LI Xin,XIANG Xingyao,ZHANG Ping,WANG Dan
Abstract:A microgrid optimization scheduling model considering dynamic network reconstruction wasproposed for the parallel and off grid scheduling problem of microgrids. The proposed model was based on Bendersdecomposition and decomposes the optimal scheduling problem of microgrids into a grid-connected operationmas...
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Number of views:582 Amount of downloads:592
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FANG Yong,SONG Tao,GUO Ziqiang,WANG Jian,GUO Jie
Abstract:With the continuous development of renewable energy sources and the increasing share ofrenewable energy in the grid,optimal coordination of maintenance work becomes increasingly important in order to ensure the safety of power supply in power systems considering renewable energy access. Current tools formai...
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Number of views:582 Amount of downloads:457
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KAN Chaohao,YAO Xiaojian,QI Ankang,WANG Zhisheng, WANG Pengcheng,CHEN Gong
Abstract:Three-phase asynchronous motor is one of the most frequently used motors. Inter-turn short circuitfault is a kind of fault with high probability. If the real-time monitoring of motor operation,health and safetyevaluation of the operation,will be able to timely stop losses,reduce losses. An inter-turn fault ...
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Number of views:580 Amount of downloads:501
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LIU Yawei,GUAN Peng,SUN Lunan,WANG Chunhui,WANG Hao
Abstract:The micro-grid solves the problem that the intermittent and fluctuating power generation hasadverse effects on the stable operation of the distribution network when the distributed generation is connected tothe distribution network. In order to meet the economic operation of micro-grid under grid connected ...
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Number of views:579 Amount of downloads:420
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ZHU Yuanzhe,WANG Ling,WU Zhengrong,LÜ Hong,XIAO Fan
Abstract:In order to further improve the output performance and efficiency of the converter,a grid-connectedconverter based on heterogeneous device mixing was proposed,referred to as heterogeneous grid-connectedconverter(HGCC). The HGCC consists of two half-bridge modules based on SiC MOSFET devices,which arecross-c...
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Number of views:577 Amount of downloads:599
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SHEN Yuming,GUI Xu,JIANG Guifen,XU Jiayin,FENG Peiru,LI Kun
Abstract:As the penetration rate of new energy in the power system continues to increase,the large-scale gridconnection of wind power is one of the important factors affecting the stable frequency operation of the powersystem. Configuring energy storage can provide transient frequency support for the system,improve ...
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Number of views:576 Amount of downloads:672
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CHEN Qian,FENG Yuan,LI Cheng,XU Yang,WANG Shuchun
Abstract:The proportion of new energy sources connected to the station area is increasing day by day,whichinevitably brings regulatory needs. Therefore,there is an urgent need for corresponding edge power flowalgorithms. In order to give consideration to accuracy,practicality and efficiency under the situation of we...
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Number of views:576 Amount of downloads:431