At present,electric energy industry in China is developing rapidly.In order to implement the concept of energy conservation and environmental protection,the scale of wind power generation,water power generation and photovoltaic power generation in various regions has been expanding,and its power generation efficiency has also been significantly improved.This paper discusses the grid-connected technology in photovoltaic power generation,expounds the principle of photovoltaic power generation system,the key technology of grid-connection and the optimization countermeasures for photovoltaic power generation system,so as to promote the optimization and upgrading of photovoltaic power generation system and continuously improve its power generation efficiency and stability.
photovoltaic power generation systemgrid-connected technologycountermeasure analysis