A comparison study of disturbance rejection property of motion controllers

摘要

This paper presents a comparison study of performance of three motion controllers such as conventional PID controller, LQR(Linear Quadratic Regulator) and RIC(Robust Internal-loop Compensator). All of comparison studies were verified by using a Industrial Servo Emulator(Model 220) made by ECP Corp. To evaluate the disturbance rejection feature, the various disturbances are applied into a motion system.