Tuning of PID controller for position control of DC servo motor using Luus-Jaakola Optimization

This paper presents an efficient and fast tuning method of controller parameters for position control of DC servo motor. A control scheme for PID controller tuning is proposed here which is based on Luus-Jaakola Optimization. Luus-Jaakola optimization procedure is used to optimize large scale nonlinear optimization problems. The tuning of PID controllers is accomplished by minimizing the Integral-Square-Error (ISE). The ISE is minimized using the Luus-Jaakola (LJ) optimization algorithm. LJ optimization procedure is a simple, yet powerful method for optimization available in literature. The results of PID control using LJ method are compared with the Ziegler-Nichol's (ZN) tuning. The simulation results show that the LJ method performs better results than the ZN technique and can successfully be used for tuning of PID controllers for DC servo motor.