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《Renewable Energy Resources》 2017-03
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Analysis for stability of the grid-connected multi-inverter system

He Guofeng;Zhu Genghui;Chu Xiaonan;Han Yaofei;Lan Qixun;Zhang Xiaojie;College of Electrical and Control Engineering, Henan University of Urban Construction;School of Mathematics and Physics, Henan University of Urban Construction;  
With the rapid development of microgrid, the Photovoltaic(PV) permeability has been increasing gradually. Under the condition of paralleled multi-inverter, the control method by virtual damping is usually used to suppress the grid resonance. In order to analyze the stability of Multi-inverter parallel under the circumstance with the same hardware and different software parameters, the dynamic locus of closed-loop zero-poles is adopted to analyze the effect of damping coefficient on the multi-inverter grid system, which is based on the closed-loop damping mathematical model. Finally, Matlab/Simulink is adopted to verify the proposed control strategy.The simulation results show that the presented control strategy can effectively suppress the resonance among paralleled inverters, meanwhile can guarantee the system stability.
【Fund】: 国家自然科学基金项目(61503122);; 河南省科技攻关计划项目(172102210179)
【CateGory Index】: TM464;TM712
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Chinese Journal Full-text Database 6 Hits
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【Co-citations】
Chinese Journal Full-text Database 9 Hits
1 LIU Jian;HUANG Wei;Shanxi Electric Power Research Institute;School of Electrical and Control Engineering,Xi'an University of Science and Technology;;Analysis about access capacity of distribute photovoltaic power generation under uncoordinated control[J];电工电能新技术;2017-03
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