Implementation and Experimental Validation of Robust Numerical Control for DC-DC Buck Converter

Abdivall Maouloud (1) , Moussa Boukhnifer (2) , Cherif Larouci (2) , Hichame Maanane (3) , Fabien Simon (3)

1 IETR - Institut d'Électronique et des Technologies du numéRique
2 ESTACA - École Supérieure des Techniques Aéronautiques et de Construction Automobile
3 Thales Air Systems

This paper deals with a global study of numerical control implementation applied to a DC-DC buck converter with two techniques, classical control technique (PI control) and robust control technique (H-infinity loop-shaping control). The H-infinity loop-shaping control is applied to improve the performance and the stability robustness of this power converter based on pulse-width-modulation (PWM) techniques. The experimental results are very promising. They show that Hinfinity loop-shaping control performs better than PI control. Hinfinity loop-shaping control reject disturbance and noise produce by the DC-DC power converter. In addition to experimental validation, the other added value of this paper is to demonstrate the feasibility of easily implementing robust numerical controls allowing rejecting disturbances without real impact on computing time, which is very important for embedded power converter applications.

Mots clés: DC-DC buck converter; PI control; Hinfinity loop-shaping control; numerical control

Domaines: Electronique; Automatique

Abdivall Maouloud, Moussa Boukhnifer, Cherif Larouci, Hichame Maanane, Fabien Simon. Implementation and Experimental Validation of Robust Numerical Control for DC-DC Buck Converter. 2019 6th International Conference on Control, Decision and Information Technologies (CoDIT), Apr 2019, Paris, France. pp.912-917, ⟨10.1109/CoDIT.2019.8820464⟩. ⟨hal-03246252⟩