Dynamic Output Feedback Fault Tolerant Controller for a Harvested Fish Population System
نویسندگان
چکیده
This paper addresses the problem of robust fault estimation and fault tolerant control of a continuous age structured model of a harvested fishery system. The harvested fish population is represented by TakagiSugeno fuzzy systems, where the effort is used as a control term, the age classes as a states and the quantity of captured fish per unit of effort as a measured output. Under some biological satisfied assumptions, we design a fuzzy augmented fault estimation observer to achieve fault estimation with actuator faults. Furthermore, based on the information of fault estimation, an observer based dynamic output feedback fault tolerant controller is designed to compensate for the effect of faults by stabilizing the closed loop system. The simulation results demonstrate the effectiveness of the proposed method. Key-Words: Dynamic output feedback, harvested fish population, Takagi-Sugeno multimodel, fault-tolerant control.
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