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research-article

Actuator fault estimation based on proportional integral observer for discrete-time switched systems

[+] Author and Article Information
Abdellah Benzaouia

LAEPT, Physics Dep. Faculty of Sciences Semlalia, Cadi Ayyad University, PoBox. 2390, Marrakesh, Morocco
benzaouia@uca.ac.ma

Kenza Telbissi

LAEPT, Physics Dep. Faculty of Sciences Semlalia, Cadi Ayyad University, PoBox. 2390, Marrakesh, Morocco
kenza.telbissi@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4041639 History: Received February 19, 2018; Revised September 28, 2018

Abstract

This paper presents a new approach of actuator fault estimation (FE) for discrete-time switched systems against unknown disturbance. The proposed fault estimation approach uses a new switching observer methodology which allows to obtain fast and exact fault information. Sufficient conditions are achieved by using multiple Lyapunov functional. These conditions are manipulated in a simple way in order to obtain a new LMI with slack variables and observer gains matrices. Finally, Two illustrative examples are performed to prove the effectiveness of the proposed method.

Copyright (c) 2018 by ASME
Topics: Actuators
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