A fault estimation and fault accommodation-based PI observer for switched systems with time delay

Kenza Telbissi , Abdoualaziz Benbraim , Abdellah Benzaouia (1)

1 MIS - Modélisation, Information et Systèmes - UR UPJV 4290

This paper deals with the problem of fault-tolerant control (FTC) for switched systems in continuous-time case. A switched proportional integral observer is designed to estimate the state and the fault simultaneously. According to the fault estimation information, a fault-tolerant control strategy is built to automatically accommodate faults while maintaining system performances such as stability. Delay-dependent conditions are derived using a multiple Lyapunov–Krasovskii functional while respecting the average dwell time constraints in the objective to obtain less conservative results. A switched electrical circuit is studied to illustrate the applicability of the suggested FTC technique.

Domaines: Automatique / Robotique

Kenza Telbissi, Abdoualaziz Benbraim, Abdellah Benzaouia. A fault estimation and fault accommodation-based PI observer for switched systems with time delay. International Journal of Dynamics and Control, 2022, ⟨10.1007/s40435-022-01018-z⟩. ⟨hal-04009480⟩