시스템 식별론 이용한 모터 드라이브 시스템에서의 전해 콘덴서 결함 진단

An electrolytic capacitor is widely used in a motor drive system Therefore, the deterioration diagnosis of an electrolytic capacitor is needed fo preventive maintenance of the system. In tills paper, we propose a new diagnosis method for the electrolytic capacitor by using the system identification method, which presents the information about the capacitor's interna parameters in on-line operation and use fuzzy algorithm for the deterioration decision We demonstrated the effectiveness of the proposed control scheme by using computer simulation.