The work deals with application of Grey Wolf Optimization (GWO) algorithm in determining the optimal parameters of proportional-integral derivative(PID) controller for speed control of DC motor.GWO is a bio inspired heuristic algorithm. Here, integral of time multiplied absolute error (ITAE) has been taken as an objective function for tuning the parameters of PID controller by GWO. Comparison of proposed GWO/PID schemewith other existing techniques has also been shown. It has been observed that proposed GWO/PID approach with ITAE as an objective function gives comparable overshoot and other parameters such as; settling and rise times are lesswhen compared with existing approaches in the literature.The robustness analysis of proposed GWO/PID approach has also been carried out with variations in the parametersof DC motor and the results are compared.
DC Motor, PID-Controller, Grey Wolf Optimization, Optimal Control, ITAE