Study of nonlinear integral sliding mode fault-tolerant control

Chih Chiang Chen*, Sendren Sheng Dong Xu, Yew-Wen Liang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

This paper studies an active fault-tolerant control (FTC) design based on an integral sliding mode control (ISMC) strategy for a class of uncertain nonlinear systems. It is shown that under the proposed scheme, the closed-loop system can tolerate certain allowable actuator faults whenever fault detection and diagnosis information is available, and the scheme also retains the main advantages of the ISMC technique. These advantages include robustness, rapid response, and ease of implementation. Moreover, the state response of the resulting closed-loop system under normal operation and different fault conditions is predictable from the response of a preselected fault-free certain system, which can be determined by the designer. Consequently, the engineer has the flexibility in selecting an (optimal) control law for the preselected system according to the system requirements. The analytical results obtained are also applied to the attitude control of a spacecraft. The simulation results clearly demonstrate the benefits of the proposed scheme.

Original languageEnglish
Article number7229367
Pages (from-to)1160-1168
Number of pages9
JournalIEEE/ASME Transactions on Mechatronics
Volume21
Issue number2
DOIs
StatePublished - 1 Apr 2016

Keywords

  • Fault-tolerant control
  • Nonlinear systems
  • Robustness
  • Tegral sliding mode control

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