Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Method for Rotor Vibration Detection of Induction Motor by Air-gap Flux Measurement

공급자속 측정에 의한 유도전동기의 회전자 진동 검출기법

  • 황돈하 (한국전기연구원 전력설비진단연구그룹) ;
  • 한상보 (한국전기연구원 전력설비진단연구그룹) ;
  • 선종호 (한국전기연구원 전력설비진단연구그룹) ;
  • 강동식 (한국전기연구원 전력설비진단연구그룹)
  • Published : 2007.05.10
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Abstract

In this paper, a new method for detecting rotor vibrations in a squirrel-cage induction motor is proposed. The air-gap flux variation analysis was done using search coils inserted in stator slots when rotor vibration conditions occurs. An accurate modelling and analysis of air-gap flux variation in the induction motor are developed using finite-element (FE) software packages, and treasuring the flux are made using search coils. In the FE analysis and experiment, the three-phase squirrel-gage induction motor with 380 [V], 7.5 [kW], 4 Poles, 1,768 [rpm] ratings is used. The simulation and experiment results can be useful for detecting rotor vibration of the induction motors.

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