沈阳工业大学学报2017，Vol.39Issue(4)：366-370,5.DOI:10.7688/j.issn.1000-1646.2017.04.02
基于虚拟同步发电机的光伏并网逆变器控制策略
Control strategy of photovoltaic grid-connected inverter based on virtual synchronous generator
摘要
Abstract
Aiming at the problem that the photovoltaic grid-connected inverter in conventional constant power control mode lacks the dynamic adjustment ability of voltage and frequency, a control strategy of photovoltaic grid-connected inverter based on virtual synchronous generator (VSG) was proposed.According to the principle of synchronous generator, the grid-connected equivalent circuit and vector relation expression of synchronous generator were established, the active frequency control algorithm and reactive voltage control algorithm were designed, and the photovoltaic power generation system based on the control strategy of VSG was established.The 10kW photovoltaic grid-connected system was established in Matlab/simulink environment.The simulated results show that the photovoltaic grid-connected inverter based on VSG has the similar frequency and voltage regulation characteristics with the synchronous generator, and can well adapt the requirements of grid operation.关键词
光伏逆变器/虚拟同步发电机/等效电路/矢量关系/有功频率/无功电压/调频/调压Key words
photovoltaic inverter/virtual synchronous generator/equivalent circuit/vector relation/active frequency/reactive voltage/frequency regulation/voltage regulation分类
信息技术与安全科学引用本文复制引用
朱更辉,陈国振,韩耀飞..基于虚拟同步发电机的光伏并网逆变器控制策略[J].沈阳工业大学学报,2017,39(4):366-370,5.基金项目
河南省科技厅科技攻关项目(162102210098). （162102210098）
