分布式光伏并网逆变器电压控制策略研究
Research on voltage control strategy for distributed photovoltaic grid-connected inverters
安科旭 1高一帆2
作者信息
- 1. 国网陕西省电力有限公司榆林市科创新城供电分公司,陕西 榆林 719000
- 2. 国网陕西省电力有限公司佳县供电分公司,陕西 榆林 719000
- 折叠
摘要
为解决分布式光伏系统电压控制不稳、并网逆变器精度问题,提出一种改进的自适应虚拟同步发电机(VSG)控制系统,用于改进逆变器电压控制算法.试验结果表明:改进后的自适应VSG控制策略能够有效改善分布式光伏系统中并网逆变器电压与频率波动问题,提高系统运行稳定性与响应速度,对分布式光伏系统在智能电网中的推广具有重要意义.
Abstract
To solve the problems of unstable voltage control and grid-connected inverter accuracy in distributed PV systems,this paper proposes an improved adaptive virtual synchronous generator(VSG)control system by studying and optimizing the VSG control strategy.The experimental results show that the improved adaptive VSG control strategy can effectively cope with the volt-age and frequency fluctuation problems of the grid-connected inverter in the distributed PV system,improve the stability of the system operation and response speed,and is of great significance for the promotion of distributed PV system in the smart grid.
关键词
分布式光伏/并网逆变器/电压控制Key words
distributed photovoltaic/grid-connected inverter/voltage control引用本文复制引用
出版年
2024
NETL
NSTL
万方数据