System uncertainties estimation based adaptive robust backstepping control for DC DC buck converter

This paper proposed a novel adaptive robust backstepping control scheme for DC-DC buck converter subjected to external disturbance and system uncertainty. Uncertainty in the load resistance input voltage represent big challenge control. In this work, an estimator matched mismatched uncertainties based is applied converter. The updating laws are determined on lyapunov theorem. Thus, difference between estimated parameters actual converges zero. method compared with conventional sliding mode integral Simulation results demonstrate effectiveness robustness of controller.