基于复合控制的单相光伏逆变电源的研究

Composite control based one-phase photovoltaic inverter

基于光伏发电系统对逆变电源有较高效率和波形失真度低的要求,通过分析采用了两级逆变器结构,给出了逆变器数学模型。提出了将传统PID和重复控制相结合的复合控制来控制逆变器输出波形,通过仿真证明了该方法的有效性。

To meet the needs of inverter efficiency and low total harmonic distortion（THD） for the Photovoltaic power system,The paper adopts the two-stage structure inverter by analying,build the mathematical model for the inverter.The repetitive control and PID are combined check the output of inverter and the simulation results show that the method is effective.