Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Motor Fault Monitoring using Instantaneous Frequency

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  • Kwak, Ki-Seok (Dept. of Electrical & Electronic Engineering, Yonsei Univ.) ;
  • Yoon, Tae-Sung (Dept. of Electrical Engineering, Changwon National Univ.) ;
  • Park, Jin-Bae (Dept. of Electrical & Electronic Engineering, Yonsei Univ.) ;
  • Kho, Jae-Won (Dept. of Computer Aided Control Engineering, Yuhan College)
  • 곽기석 (연세대학교 전기전자공학과) ;
  • 윤태성 (창원대학교 전기공학과) ;
  • 박진배 (연세대학교 전기전자공학과) ;
  • 고재원 (유한대학 컴퓨터제어과)
  • Published : 2005.07.18
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Abstract

Instantaneous frequency(IF) has important physical meaning for nonstationary signal. Motor current is well known that to be a nonstationary signal whose properties vary with respect to the time-varying normal operating conditions of the motor, particularly with load. Time-frequency methods can overcome the shortcomings of the traditional spectral analysis techniques, nonstationary signal analysis approaches have been introduced. We examine the concept of IF as a potential candidate for condition monitoring of motors.

Keywords