The average inductancecurrent can be calculated by input voltage and output voltage to use in PI regulator.
通过采样输入输出电压以获取电感的平均电流，从而代替了实际的采样电流，以进行PI调节。
2
We can use SPWM to control power tube on or off, can use the double-loop control with the inductancecurrent inner loop and capacitor voltage outer loop is introduced.
可采用SPWM控制功率管的关闭与导通，采用外环电压环，内环电流环的双环控制。
3
The result is that open circuit fault does not affect output voltage of the system, but it apparently affects inductancecurrent and output current of single module inverter.