DC Motor Speed Control via a DC to DC Buck Power Converter

This paper presents a hierarchical control system designed for permanent DC motor powered by a DC/DC Buck converter. Hierarchical controller based on differential flatness property of the plant system is meant to control the angular speed for tracking trajectories applications. This controller provides the voltage profiles that have to be tracked by the Buck converter and consequently a low hierarchy controller is designed to ensure the aforementioned. The low hierarchy controller goal is accomplished by using another control law based on differential flatness that controls the Buck converter. The contribution is validated through numerical simulations.