Flatness Based Control of a Buck-Converter/DC-Motor Combination

This paper shows a control law designed for a DC/DC Buck-Power-Converter and DC-motor system by using the differential flatness property of the plant model. This approach is meant to perform angular speed control for tracking trajectory applications. The flatness property of the DC motor model is exploited in order to propose a high hierarchal control system, which allows the angular speed to track a desired trajectory. This controller provides the voltage profiles that must be tracked by the Buck converter and a low-hierarchical control is designed in order to ensure the aforementioned. This is accomplished using another flatness based control. The findings are verified through numerical simulations with Mat lab-Simulink software.