access icon free Fault-tolerant control design for uncertain Takagi–Sugeno systems by trajectory tracking: a descriptor approach

This study considers the problem of fault-tolerant control (FTC) by trajectory tracking for uncertain non-linear system described by Takagi–Sugeno models. The considered faults are constant, exponential or polynomial. The provided results are easily formulated in terms of linear matrix inequalities by employing the descriptor redundancy property. This latter introduces ‘virtual’ dynamics both in the active FTC control law scheme and in the output error allowing to decouple the gains of the active FTC controller, the observer gain matrices and the system ones. Numerical examples are given to illustrate the efficiency of the proposed approach.

Inspec keywords: control system synthesis; fault tolerance; linear matrix inequalities; trajectory control; nonlinear control systems; uncertain systems

Other keywords: trajectory tracking; linear matrix inequalities; uncertain nonlinear system; FTC; fault-tolerant control design; uncertain Takagi-Sugeno systems; descriptor approach

Subjects: Nonlinear control systems; Algebra; Spatial variables control; Control system analysis and synthesis methods

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