Session Track
November 03 (Friday)
신뢰성부문 포스터
Poster,
3층 로비,
14:10~15:00
- 손영갑(안동대), 오현석(광주과기원)
Fr16D-9
14:10~15:00
영구자석 전동기 일체형 원심펌프 고장 인가법 개발
Fault diagnosis is critical to ensure the reliable and safe operation of permanent magnet (PM) motors used in mission-critical pump applications. For fault diagnosis, data-driven approaches with artificial intelligence techniques are widely accepted. Nonetheless, for implementing data-driven approaches, a sufficient amount of high-quality data from real systems in the field should be used for training classification/clustering models. However, it is difficult to obtain, in particular, faulty data compared with normal data. One of the main reasons is that faulty components of mission-critical pump systems in plants are immediately replaced with normal ones if any symptom of failure is revealed from the systems. To this end, this study attempts to develop a fault diagnostic technique for PM motors with motor current analysis. First, failure modes, mechanisms, effects analysis (FMMEA) is conducted to prioritize a dominant failure mechanism of PM motors. Second, a motor test bed is devised to emulate winding failure mode of PM motors. An artificial fault is seeded into the winding of the PM motors. Third, motor current signals are collected with high-performance current probes. Finally, current signals of faulty PM motors are compared to those of normal ones. We expect that this study will contribute to developing a sensor-free technique for fault diagnosis of PM motors in mission-critical pumps of engineering plants.
Keywords : Permanent Magnet Motor, Winding, Fault Diagnosis, Current Probe, Motor Current Signature Analysis
Paper : Fr16D-9.pdf
(사)대한기계학회, 서울시 강남구 테헤란로 7길 22 한국과학기술회관 신관 702호, Tel: (02)501-3646~3648, E-mail: ksme@ksme.or.kr