능동댐핑 영-극점 상쇄 BLDC모터 속도 제어기를 위한 경사 하강법 기반 자동 동조 알고리즘 설계

Abstract

This paper presents an auto-tuning mechanism for major design factors adopted for the active damping pole-zero cancellation Brushless DC Motor (BLDCM) speed controller. The proposed auto-tuner is designed to seek the minimum point of the steepest gradient method-based controlled error’s cost function. Moreover, the proposed solution employs the compensation term (σ-modification) to assign the stable pole to the auto-tuner dynamics. The prototype dynamo system, which includes the 500W BLDCM as the test motor, verifies the effectiveness of the closed-loop system driven by the proposed auto-tuner.