Prescribed-Time Control for DC-DC Buck Converters

This paper proposes the prescribed-time control strategy for DC-DC buck converters. First, DC-DC buck converters are modeled as a nonlinear system in lower-triangular form. A state-feedback controller is then designed for such system by using the backstepping method and a prescribed-time adjustment function. It is proved that the designed controller can well stabilize the closed-loop system to ensure all the signals prescribed-time stability, and render the output voltage error converge to the origin in an arbitrarily prescribed time. Finally, the simulation results are provided to demonstrate the effectiveness of the designed scheme.