Performance Investigation of Dc Motor Angular Velocity using Optimal and Robust Control Method

Control system

In this paper, comparison of Dc motor angular velocity have been analyzed using PID, H∞ and μ –synthesis controllers for a step, impulse and sine wave desired velocity inputs. The H∞ controller is designed using H∞ approach while the μ –synthesis controller is designed using D-K iteration method. The step input simulation result shows that the Dc motor with μ –synthesis controller have small settling time and exact steady state value while the Dc motor with PID controller have small rise time and the Dc motor with H∞ Controllers have small percentage overshoot. The impulse input simulation result shows that the Dc motor with μ –synthesis controller have small peak response while the Dc motor with H∞ controllers have small settling time. The sine wave input simulation result shows that the Dc motor with μ –synthesis controller responds as the sine wave input signal. Finally the comparative results prove that the Dc motor with μ –synthesis controller is the effective controller for this design.

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