The Transactions of the Korean Institute of Electrical Engineers C (대한전기학회논문지:전기물성ㆍ응용부문C)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Development of On-Line Monitoring System for Pumped Storage Generator/Motor

양수발전소 발전-전동기 운전중 감시 시스템의 개발

  • Published : 2004.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

On-line monitoring system(OMS) has been developed for the pumped storage generator/motor The OMS is applied to diagnosis of the PD(partial discharge) activity of stator insulation, the shorted-turn of rotor winding and the variation of the air-gap between stator and rotor. The OMS consists of DAS(data acquisition system), main server system, gateway and display PC. The DAS measures the PD, the shorted-turn and air-gap from three sensors installed on the generator/motor. The gateway controls the data which sent by DAS. The main server system saves the data, analyzes the data and conducts the diagnostic algorithm. The display PC shows the diagnostic results of partial discharge, shorted-turn and air-gap. Field tests were conducted using PDA(partial discharge analyzer). The results of the OMS and PDA measurements can be directly correlated with normalized quantity number(NQN), PD magnitude(Qm) and PD pattern.

Keywords

References

  1. H. G. Sedding et al, 'On-Line Partial Discharge Measurements on Turbine Generator : Experience with Stator Slot and Bus Coupler Measurements', CIGRE, Paris, 1998
  2. W. McDermid and J. C. Bromley, 'Experience with Directional Couplers for Partial Discharge Measurements on Rotating Machines in Operation', IEEE Trans. on Energy Conversion, Vol. 14, No 2, pp. 175-184, 1999 https://doi.org/10.1109/60.766981
  3. 김희동, 이영준, 박종정, 주영호, '발전기 회전자 권선의 운전중 층간단락 탐지', 대한전기학회 논문지, Vol. 48C, pp. 192-199. 1999
  4. E. Woschangg, 'Turbogenerator Field Winding Shorted Turn Detection by AC Flux Measurement', IEEE Trans. on Energy Conversion, Vol. 9, No 2, pp. 427-431, 1994 https://doi.org/10.1109/60.300127
  5. G. C. Stone, Partial Discharge Seminar, Iris Power Engineering Inc., Vol. 1, pp. 56-78, 2001
  6. I. M Culbert, H. Dhirani, and G. C. Stone, Handbook to assess the Insulation Condition of Large Rotating Machines, EPRI, EL-5036, Vol. 16, pp. 3-25-3-28, 5-13-5-14, 1989
  7. G. C. Stone, B. A. Lloyd and S. R. Campbell, 'On-Line Monitoring for Condition Assessment of Motor and Generator Stator Windings', IEEE Pulp and Paper Industry Techanical Conference, pp. 94-103, 1994 https://doi.org/10.1109/PAPCON.1994.324503
  8. V. Warren, G. C. Stone and M. Fenger, 'Advancements in Partial Discharge Analysis to Diagnose Stator Winding Problems', IEEE International Symposium on Electrical Insulation, pp. 497-500, 2000 https://doi.org/10.1109/ELINSL.2000.845557
  9. G. C. Stone, 'Importance of Bandwidth in PD Measurement in Operating Motors and Generators', IEEE Trans. on Dielectrics and Electrical Insulation, Vol. 7, No. 1, pp. 6-11, 2000 https://doi.org/10.1109/94.839335
  10. Hee-Dong Kim, 'Analysis of Partial Discharge to High Voltage Motor Stator Windings', IEEE Conference on Electrical Insulation and Dielectric Phenomena, pp. 340-343, 2001 https://doi.org/10.1109/CEIDP.2001.963552