基于太阳能发电系统的分布式电网并网研究

Study on grid connection based on solar power system

实现分布式发电系统的有效并网是分布式电网主要的一个发展方向。以太阳能发电系统为例对分布式电网的并网系统展开研究。着重分析了在光伏并网过程中出现的孤岛效应,同时在远程智能孤岛检测设计中提出了基于电力系统同步相量检测单元(PMU)的孤岛效应检测方案。最后给出了光伏并网流程,提高分布式电网并网的安全性与稳定性。

The effective connection of distributed power generation system is the main development direction of distributed power grid.In this paper,the solar power generation system was taken as an example to study the grid-connected system of distributed power grid.The islanding effect in the process of PV grid connection was analyzed,and the islanding detection scheme based on the synchronous vector detection unit(PMU)of the power system was proposed in the remote intelligent island detection design.Finally,the PV grid connection process was put forwarded to improve the security and stability of the grid connection of distributed power grid.