Study of nonsingular fast terminal sliding-mode fault-tolerant control

Sendren Sheng Dong Xu, Chih Chiang Chen, Zheng Lun Wu

Research output: Contribution to journalArticlepeer-review

120 Citations (Scopus)


This paper studies fault-tolerant control (FTC) designs based on nonsingular terminal sliding-mode control and nonsingular fast terminal sliding-mode control (NFTSMC). The proposed active FTC laws are shown to be able to achieve fault-tolerant objectives and maintain stabilization performance even when some of the actuators fail to operate. In comparison to existing slidingmode control (SMC) fault-tolerant designs, the proposed schemes not only can retain the advantages of traditional SMC, including fast response, easy implementation, and robustness to disturbances/uncertainties, but also make the system states reach the control objective point in a finite amount of time. Moreover, they also resolve the potential singularity phenomena in traditional terminal and faster terminal SMC designs; meanwhile, the proposed NFTSMC fault-tolerant scheme also possesses the benefit of faster state convergence speed of NFTSMC. Finally, the proposed analytical results are also applied to the attitude control of a spacecraft. Simulation results demonstrate the benefits of the proposed schemes.

Original languageEnglish
Article number2399397
Pages (from-to)3906-3913
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Issue number6
Publication statusPublished - 2015 Jun 1

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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