On-Line Vibration Monitoring Techniques for Synchronous Generators by Flux Measurement

자속측정에 의한 동기발전기의 운전중 진동 감시기법

  • Kim, Ji-Hyun (Industry Applications Research Center, Korea Electotechnology Research Institute (KERI)) ;
  • Hwang, Don-Ha (Industry Applications Research Center, Korea Electotechnology Research Institute (KERI)) ;
  • Chang, Ki-Chan (Industry Applications Research Center, Korea Electotechnology Research Institute (KERI)) ;
  • Kim, Yong-Joo (Industry Applications Research Center, Korea Electotechnology Research Institute (KERI)) ;
  • Kwon, Young-An (Advanced Electronic Technology Co. Ltd.) ;
  • Song, Sang-Ock (Advanced Electronic Technology Co. Ltd.)
  • 김지현 (한국전기연구원 산업전기연구단) ;
  • 황돈하 (한국전기연구원 산업전기연구단) ;
  • 장기찬 (한국전기연구원 산업전기연구단) ;
  • 김용주 (한국전기연구원 산업전기연구단) ;
  • 권영안 ((주)선진전자기술) ;
  • 송상옥 ((주)선진전자기술)
  • Published : 2002.07.10

Abstract

The effort for measuring the rotor vibration caused by the short of rotor winding or air-gap eccentricity has been carried on. This paper introduces on-line vibration monitoring technologies using search coils to measure flux for synchronous generators. A 3,300/6,600 (V), 150 [kW] synchronous generator is built, and search coils are designed and inserted in the wedges. Furthermore, air-gap eccentricity is analyzed by finite element method and compared with experiment tests. Induced voltages caused by different air-gap eccentricity on the search coils are compared as well.

Keywords