Fault‐tolerant control with control allocation for linear time varying systems: an output integral sliding mode approach. Issue 2 (1st January 2017)

• Record Type: Journal Article
• Authors: Galván‐Guerra, Rosalba; Liu, Xinyi; Laghrouche, Salah; Fridman, Leonid; Wack, Maxime
• Is Part Of: IET control theory & applications. Volume 11:Issue 2(2017)
• Page Start: 245
• Page End: 253
• Publication Date: 2017-01-01
• Subjects: variable structure systems -- linear systems -- time‐varying systems -- fault tolerant control; linear time varying systems -- output integral sliding mode approach -- fault‐tolerant control scheme -- fixed control allocation strategy -- fault effect -- critical control channels -- computer simulations; Control theory -- Periodicals; Automatic control -- Periodicals; 629.8312
• DOI: 10.1049/iet-cta.2016.0453
• Languages: English
• ISSNs: 1751-8644

Abstract

Abstract : A fault‐tolerant control scheme with a fixed control allocation strategy for linear time varying systems is proposed. The effects of the faults in the critical control channels are compensated theoretically exactly and the remaining effects are minimised by using an output integral sliding mode technique. Both aspects are achieved right after the initial time by using only output information. This approach allows dealing with total failures in some actuators under the assumption of redundancy. The effectiveness of the proposed scheme considering time varying faults is validated by computer simulations.