基于LCL滤波的光伏并网控制研究

In this paper, a control method of state feedback control and repetitive control is proposed, based on a combination of photovoltaic grid-connected inverter. The control strategy of the closed-loop poles at desired positions, and a satisfactory dynamic characteristics; and the use of repetitive control to improve the steady state performance of the state feedback control, improve the quality of the grid-connected current waveform, the system has good dynamic and steady state performances, good output quality of electric energy, meet the performance of photovoltaic grid-connected control requirements. Which can provide a reference for the grid-connected photovoltaic power supply.