Robust Nonlinear Constraint Fractional order PID controller: PSO Approach
کد مقاله : 1234-CFIS (R1)
محمد فیوضی *
مربی دانشگاه سید جمال الدین اسدابادی
چکیده مقاله:
in this paper Fractional Order PID (FOPID) is utilized for stabilizing a class of fractional order system. In this paper the policy for determining the FOPID controller by considering saturation, output constraint and stability analysis has been derived. In fact nonlinearity presented by saturation. At first tries to formulate all equation by LMI, and then based on the constraints, cost function and decision variable, PSO solves Lagrangian equation in order to find the optimal solution by inequality. A bounded optimization problem that guarantees the robust stability of the closed loop system is solved to calculate the stabilization law. The efficiency of the proposed algorithm is confirmed by an example of simulation.
کلیدواژه ها:
Keywords: FOPID, Stability, LMI, Constraint Optimization, PSO.
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