Robust relay control for buck converters : experimental application

Aboubacar Ndoye (1, 2) , R Delpoux , L Hetel , Alexandre Kruszewski (3) , J.-F Trégouët , X Lin-Shi

1 CRIStAL - Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189
2 INSA Lyon - Institut National des Sciences Appliquées de Lyon
3 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201

In this paper, a robust relay control of a buck converter is proposed. The controller is synthesized based on the design of a continuous controller for the average model of a buck converter usually used when Pulse Width Modulation (PWM) is considered. To deal with parameter uncertainties, the controller implements an integral action. In this paper, local stability is proven for the hybrid system, thereby ensuring zero steady state error on the voltage output. A subset of the robust basin of attraction is explicitly constructed. The effectiveness of this control is illustrated experimentally.

Domaines: Automatique / Robotique; Energie électrique

Aboubacar Ndoye, R Delpoux, L Hetel, Alexandre Kruszewski, J.-F Trégouët, et al.. Robust relay control for buck converters : experimental application. Conference on Decision and Control, Dec 2019, NICE, France. ⟨hal-02344388v1⟩