Research on grid-connected photovoltaic system based on cascaded H-bridge converter
The research on multilevel H-bridge converter has entered a relatively deep stage of development,which is a stable and mature technology.Based on the basic principle of a single H-bridge converter,this article analyzes the development,working principle,and related topology structures of multilevel cascaded H-bridge converter.In order to study the grid-connected photovoltaic system based on cascaded H-bridge converter,the grid-connected photovoltaic power generation system model is built and the operation principle of the system is analyzed in this paper.Furthermore,the working principle of the Boost converter is analyzed,and the maximum power point tracking algorithm is introduced.This paper simulates and analyzes the two-stage three-phase grid-connected photovoltaic system.It is verified that the cascaded H-bridge converter can achieve good power generation efficiency.The proposed research provides a good support for the application of photovoltaic power generation system.
grid-connected photovoltaic systemBoost convertermaximum power point trackingcascade H-bridge converter
万方数据
维普
