中文说明：
三相LCL滤波型PWM逆变器仿真模型，内附相关文献。采用并网电流外环电容电流前馈内环的双闭环控制结构，可以参考用于光伏和风力发电网侧变换器中。
English Description：
The simulation model of three-phase LCL filter PWM inverter is attached with related literature. The double closed-loop control structure of grid connected current outer loop and capacitor current feedforward inner loop can be used in grid side converters of photovoltaic and wind power generation.