Analysis and implementation of sliding mode control for full bridge inverter

A sliding mode control scheme for the full bridge buck inverter is analyzed, including modeling the variable structure system, selecting the switching line and control law, and deriving reaching conditions and sliding domain. The criterions of selecting switching surface coefficients and switching frequency for practical implementation are considered and a corresponding design procedure are presented. Simulations are carried out and an experimental prototype has been built up. The simulations and experimental results show that the output voltage of the sliding mode control inverter tracks the reference sinusoidal signal fast, and exhibits good dynamic property and robustness under load perturbations.