Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
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Study on the Development of Diagnosis Algorithm for Induction Motor Using Current and Magnetic Flux Sensors

전류 및 자속센서를 이용한 유도전동기 예방진단 알고리즘 개발에 관한 연구

  • Han, Sang-Bo (Dept. of Electrical Engineering, Kyungnam University)
  • Received : 2019.10.24
  • Accepted : 2019.11.21
  • Published : 2019.12.31
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Abstract

This paper discussed the results of the development and application of the machine learning algorithm to the induction motor for the preventive diagnostic system using current and magnetic flux signals. The optimal 29 features were extracted for identifying faulted types of induction motor. In particular, any load rate was derived using the tendency of the difference value from the center of the 7th harmonic frequency to the sideband of the current signal, and the corresponding classification accuracy showed about 84.6% by the KPCA feature reduction technique and the k-NN determination algorithm.

본 논문은 전류신호와 자속신호를 이용한 유도전동기 예방진단시스템을 개발하기 위한 머신러닝 알고리즘의 개발 및 적용 결과에 대하여 논하였다. 유도전동기의 결함 종류를 판별하기 위한 최적 특징추출단계를 통하여 총 29개의 특징을 도출하였다. 특히, 전류신호의 제7차 고조파 중심으로부터 사이드밴드까지의 주파수의 차이가 부하율 증가에 따라서 증가되는 경향을 이용하여 임의의 부하율 상태를 반영할 수 있는 알고리즘을 도출하였으며, KPCA 특징 축소 기법, k-NN 판단 알고리즘에 의한 분류 정확도를 조사한 결과, 약 84.6%의 분류 정확도를 보였다.

Keywords

References

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