Checking the robustness of a PWM sliding mode controlled DC/DC buck-boost converter using its Matlab/Simulink model

The modelling of sliding mode (SM) based controlled DC-DC buck-boost converter operating in continuous conduction mode (CCM) with pulse-width modulation (PWM) based is represented in this paper. The model is simulated by Matlab/Simulink software package. The system is modelled and the SM equations for the PWM implementation are illustrated. The performances of the system are tested for the static and dynamic performance is investigated. The simulation results show good and accepted values for voltage regulation which makes the model suitable for common DC-DC conversion purposes.