The application of compound control in digital SVPWM inverter based on DSP

The control strategy is the main fact to determines output wave quality of the sine wave inverter, Both the PID control of the traditional and modern control theory are difficult to realize good control effects to inverter. This paper brings forward a kind of control strategy adopting active disturbance rejection control and PID control through the analysis of different control methods. Meanwhile, MS320F28335 DSP was adopted as the main control core. Not only simulating system through MATLAB2007B, demonstrating the trials ashibit the inverter circuit of hardware. Simulation and trial results show this design can realize the high precision steady output, it has a simple arithmetic, well dynamic response performance and the wonderful application prospect.