Design of Fuzzy Fault-Tolerant Control System with Multi-Indices Constraints

Studies the problem of fuzzy fault-tolerant controller design for fuzzy nonlinear systems with regional pole index, steady variance index and H_∞ constraints. Based on the decomposition and equivalence principle, the problem of reliable control for fuzzy nonlinear systems is converted to extreme subsystems fault-tolerant controllers design. Through linear matrix inequality theory, a new linear fault-tolerant control system design method is set up, and the range of consistent indices is analyzed in detail. The design step of fault-tolerant controller with multi preformance indeces constraints is provided. A simulation example showed the efficiency of the design method.