Simultaneous Design of Fault Tolerant Controller and Fault Detector for Linear Continuous-Time Systems with Actuator Outage Faults

摘要

The paper studies the problem of simultaneous design of fault tolerant controller and fault detector for a class of linear continuous-time systems with bounded disturbances and nonzero external constant inputs. A dynamic output feedback controller and a fault detector are designed simultaneously, where the output feedback controller stabilizes the closed-loop system for both normal and faulty cases and attenuates the effects of disturbances. By manipulating the steady-state values of the system states with the fault detector, a residual is then generated, through which the actuator outage faults can be detected effectively. An F-18 aircraft model is studied to illustrate the effectiveness of the proposed methods.