Auto-Tuning PI control using limitted step response for brushless DC motor speed control

브러시리스 직류전동기 속도 제어를 위한 한계스텝응답 특성을 이용한 Auto-tuning PI 제어

This paper describes the procedure of getting information about auto-tuning of PID regulator by the injection of high step input, called limited input, during a transient time of control. The key point is that system identification and control could be continuously executed. This means that the system information obtained by limited input despite of system uncertainty can be continuously applied to the PI regulator. Simulation and experiment result of brushless DC motor system having monotone increasing step response demonstrate the usefulness of proposed auto-tuning algorithm.