Tuning of a PID Controller by Bacterial Foraging Algorithm for Position Control of DC Servo Motor

Abstract

Controlling the position of Direct Current servo motor is the first aim of this paper, by Bacterial Foraging Algorithm (BFA), the best Proportional-Integral-Derivative (PID) controller parameters were obtained through Mat-Lab application, including the simulation and modeling of Direct Current servo motor, BFA controller and conventional PID Controller as benchmark to the performance of BFA. Proportional-Integral-Derivative controller is a closed loop system, the error made by the Direct Current motor was corrected and determine the correct position to the desired point were controlled By integrating the Proportional-Integral-Derivative controller. K p , K i and K d parameters was tuned to the find best values, which make the Direct Current Motor reached quickly the accurate position without any mistake.