Affiliation:
1. Laboratory of Engineering of Industrial Systems and Renewable Energy (LISIER), National Higher Engineering School of Tunis (ENSIT), University of Tunis, 5 Avenue Taha Hussein, BP 56, 1008 Tunis, Tunisia
Abstract
The present paper addresses the problem of robust active fault tolerant control (FTC) for uncertain linear parameter varying (LPV) systems with simultaneous actuator and sensor faults. First, fault estimation (FE) scheme is designed based on two adaptive sliding mode observers (SMO). Second, using the information of simultaneous system state, actuator, and sensor faults, two active FTC are conceived for LPV systems described with polytopic representation as state feedback control and sliding mode control. The stability of closed-loop systems is guaranteed by mean of H∞ performance; sufficient conditions of the proposed methods are derived in LMIs formulation. The performance effectiveness of FTC design is illustrated using a VTOL aircraft system with both sensor and actuator faults as well as disturbances. In addition, comparative simulations are provided to verify the benefits of the proposed methods.
Subject
General Engineering,General Mathematics
Cited by
8 articles.
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