Ant Colony Optimization based Optimal Tuning of Fractional Order (FO) PID Controller for controlling the Speed of a DC Motor

This paper deals with the use of a FOPID Controller for direct current motor speed controlling process. consists fractional integral-derivative terms along integer order proportional terms. It is specific controller in which orders derivative and integral lie between fractions 0 1. Mathematical model DC presented whose field has been excited by an external source. In this paper, simulation part its using performed. There are five degrees freedom contrary to traditional PID have only three. The values parameters (Kp, Ki, Kd, λ, μ) improved reducing ITAE (Integral Time Absolute Error) cost best possible value ACO i.e. Ant Colony Optimization Technique. closed loop ZNT (Ziegler-Nichols Tuning) method used tuning motor. Simulink proposed system developed simulated find out minimum cost. intensification steady transient behaviors system. results also exhibit significant improvement rise time, settling time peak overshoot as compared other optimization methods.