# An integrated design for robust actuator fault accommodation based on $H_\infty$ proportional-integral observer

Abstract : The main contribution of this paper is an integrated design of robust fault estimation (FE) and fault accommodation (FA), applied to uncertain linear time invariant (LTI) systems. In this design, the robust H-infinity proportional-integral (PI) observer allows a precise estimation of actuator fault by dealing with system disturbances and uncertainties, while the feed-back controller compensates the actuator fault, and therefore assuring the closed-loop stability. Thanks to the application of majoration and Young inequalities, the observer-controller decoupling problem is solved and both above objectives are combined into only one linear matrix inequalities (LMI) allowing a simultaneous solution for both observer and controller. Finally, an example of vehicle suspension system is illustrated to highlight the performance of the proposed method.
Keywords :
Type de document :
Communication dans un congrès
57th IEEE Conference on Decision and Control, CDC 2018, Dec 2018, Miami, United States. 2018

https://hal.archives-ouvertes.fr/hal-01900049
Contributeur : Didier Maquin <>
Soumis le : samedi 20 octobre 2018 - 18:50:17
Dernière modification le : jeudi 25 octobre 2018 - 10:10:15

### Identifiants

• HAL Id : hal-01900049, version 1

### Citation

Manh-Hung Do, Damien Koenig, Didier Theilliol. An integrated design for robust actuator fault accommodation based on $H_\infty$ proportional-integral observer. 57th IEEE Conference on Decision and Control, CDC 2018, Dec 2018, Miami, United States. 2018. 〈hal-01900049〉

### Métriques

Consultations de la notice