中文说明：
该仿真模型基于重复控制算法，对逆变器的并网控制进行了详细的仿真，方便熟悉该算法的工作原理及逆变器的工作原理。
English Description：
The simulation model is based on repetitive control algorithm, and the grid connected control of inverter is simulated in detail. It is convenient to be familiar with the working principle of the algorithm and inverter.