Design a Controller Based on Smith Predictor by Direct Synthesis for Speed Control DC Motor

Abstract

The modified Smith predictor is designed for a speed control DC motor. A speed controller of a DC motor by selection of PID parameters using a direct synthesis method. Here, the model of a DC motor is considered as a second-order system for speed control. The PID and PD controller structure reported recently decouples set-point tracking from disturbance rejection. The aim of this work is to design a speed controller of a DC motor by selection of proper PID. Simulation examples show that improved servo and regulatory performances are achieved by the proposed method as compared to the normal tune PID method, and also check by perturbed performance. When used for regulatory/servo purposes, a controller optimized for servo/regulatory application significantly degrades performance.