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This paper proposes a scheme to achieve fault tolerant control to elevator failure of large aircraft. Meanwhile, the model of aircraft is expressed by linear-parameter-varying (LPV), and an LPV controller is designed. The approaches of H-infinity and pole assignment using linear matrix inequalities (LMIs) tools are used to design the states feedback controller, keeping the stability, rapidity and robustness. Moreover, an additional scheduling parameter of effectiveness of the elevator is introduced to the model and controller, keeping the desired performance when elevator failure happens by the nominal controller, avoiding the retuning the controller. The simulation are shown to prove the method.
Inspec keywords: fault tolerant control; nonlinear control systems; linear systems; robust control; scheduling; fault tolerance; stability; linear matrix inequalities; control system synthesis; state feedback; pole assignment
Subjects: Nonlinear control systems; Linear control systems; Control system analysis and synthesis methods; Algebra; Stability in control theory