Harmonic suppression of LCL grid-connected inverter based on PI control

摘要

In recent years, energy issues have become more prominent. To solve energy problems, distributed power generation has received great attention. Therefore, distributed power generation has also received extensive attention and rapid development. This puts higher requirements on the quality of the output power of the inverter. How to control the LCL type grid-connected inverter to achieve the goal of better output power quality is a hot and difficult point that needs to be overcome in recent years.In this paper, a simulation model of the LCL grid-connected inverter is established in the MATLAB/Simulink environment, the advantages of PI control are analyzed, and the LCL grid-connected inverter based on PI control is designed. Finally, simulation verification was performed under Simulink.