Design of fractional PIλDμ controller via modified firefly algorithm

This paper presents implementation of an optimization method based on Firefly algorithm (FA) for better tuning of the parameters of Fractional PID Controller (FOPID). The values of all the parameters of FOPID are computed using Modified Firefly Algorithm with random initial conditions. Numerical results obtained from simulations illustrate the performance of the proposed configuration. The results of the examples exhibit that the proposed Modified FA converges significantly faster. It outperforms in terms of overshoot, settling time for the plant and integral square error (ISE).