Abstract
This paper focuses on the fault tolerant control (FTC) approach using model reference adaptive control (MRAC). The fault in flight control system will lead to destructive accident. Firstly a new general post-fault system model of both additive and multiplicative actuator faults was presented. The new strange of MRAC will overcome the disadvantages of the previous ones, that is, the fault information will be used to compose the control law so that this method will process more fault situations. The performance effectiveness of the proposed control approach is illustrated through studying the control of Boeing 747 numerical model and simulation results validate the effectiveness of the proposed AFTC approach could guarantee the longitudinal control system stability and acceptable performance degradation under typical lock in and loss of effectiveness actuator faults.
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