PD, PI, PID CONTROLLER TUNING ANALYSIS FOR SPEED CONTROL OF DC MOTOR USING DIFFERENT OPTIMIZATION TECHNIQUE

Abstract

Speed control of DC motors plays a very significant role in numerous industrial applications such as steel mills, rolling mills, locomotives etc. This research work aims to derive robust and efficient speed control technique based on Proportional-Derivative (PD), Proportional Integral (PI) and Proportional-Integral-Derivative (PID) controller. Moreover, the optimization of all the mentioned controller parameters is carried out using PSO, GA, BWO and Coot techniques. PID controller is used for control applications to regulate speed and other process variables. It uses a control closed loop feedback to keep the practical output as close as the target output. However, selecting suitable parameters for the controller is challenging and therefore, this study uses PSO, GA, BWO and Coot optimization techniques to derive appropriate controller parameters. Different methodologies are proposed with the combination of PD, PI and PID controller with PSO, GA, BWO and Coot optimization technique through MATLAB simulations. The simulation demonstrates a comparative analysis of all the controllers with different optimization techniques and hence we can derive the best controller-optimization technique for speed control of DC motor.