Research of Single-phase SPWM Inverter Based On PIC SCM

In this paper, the model of single-phase inverter is analyzed. Against load disturbance,the double closed loop control,which output voltage is used as out ring and the capacitor current as inner,is used to improve dynamic and static properties of the inverter. The control of inverter centers on PIC16F877A. The SPWM algorithms is used. The experiment results show that the single-phase SPWM inverter based on PIC SCM has good stability and high control precision. It meets the needs of output voltage quality.