Performance Assessment of Tuning Methods for PID Controller Parameter used for Position Control of DC Motor

In this paper, a comparison is made for tuning methods of PID controller to improve the performance of the position control system of DC motor.Firstly, the PID controller is tuned using conventional Ziegler -Nichols method and then by using Simulink Response Optimization tool box available in MATLAB software.Further, Fuzzy gain scheduling of PID controller is investigated in which fuzzy rules are utilized on-line to adapt the PID controller parameters based on the error and its first time derivative.The result shows that the gain scheduling scheme for DC motor position control system have presented superior performance compared to other methods.