Fault-tolerant control for a class of T-S fuzzy systems via delta operator approach

  • Authors:
  • Hongjiu Yang;Peng Shi;Xuan Li;Zhiwei Li

  • Affiliations:
  • -;-;-;-

  • Venue:
  • Signal Processing
  • Year:
  • 2014

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Abstract

This paper studies a fault-tolerant control scheme for T-S fuzzy models based on delta operator approach. A fuzzy fault detection observer is constructed by means of T-S fuzzy delta operator systems. Moreover, a new approach is established for the estimation of faults in a class of nonlinear systems. The proposed fault-detection observer can be obtained in terms of the solvability of linear matrix inequalities. Then, an active fault-tolerant controller is designed to compensate for the effect of the faults and makes the closed-loop fuzzy delta operator system stable. A numerical example is provided to illustrate the effectiveness of the proposed design techniques.