可再生能源2024，Vol.42Issue(10)：1363-1370,8.
并联改进VSG功率环流的分析与抑制策略研究
Analysis and suppression strategy of parallel improved VSG power circulation
摘要
Abstract
An improved virtual synchronous generator(VSG)control strategy for multi-inverter parallel system is proposed in this paper to suppress the circulating current caused by the impedance difference of transmission lines between PV microgrid inverters in islanded mode.Firstly,based on the traditional VSG control block diagram,each inverter counteracts the power loss on the transmission line by introducing the line power feedback,so as to improve the active and reactive power sharing accuracy,reduce the output voltage drop,and improve power quality.Then,the synchronous controller is introduced to reduce the instantaneous current and suppress the instantaneous circulating current between the multi-inverter parallel system.Finally,the effectiveness of the proposed control strategy is verified by simulation and experiment.关键词
孤岛模式/多逆变器并联系统/虚拟同步发电机/环流抑制Key words
island mode/multi-inverter parallel system/virtual synchronous generator/circulation suppression分类
能源科技引用本文复制引用
周子淳,何国锋,董燕飞,林俊芳..并联改进VSG功率环流的分析与抑制策略研究[J].可再生能源,2024,42(10):1363-1370,8.基金项目
河南省自然科学基金面上项目(222300420400). （222300420400）
