Journal of the Korean Institute of Illuminating and Electrical Installation Engineers (조명전기설비학회논문지)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Integrated Simulation and Condition Monitoring Scheme for a PMSG-Based Variable Speed Grid-Connected Wind Turbine System under Fault Conditions

PMSG 적용 가변속 계통연계형 풍력발전 시스템의 통합 시뮬레이션 및 스위치 개방고장 진단기법 연구

  • Kim, Kyeong-Hwa (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology) ;
  • Song, Hwa-Chang (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology) ;
  • Choi, Byoung-Wook (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology)
  • 김경화 (서울과학기술대학교 전기정보공학과) ;
  • 송화창 (서울과학기술대학교 전기정보공학과) ;
  • 최병욱 (서울과학기술대학교 전기정보공학과)
  • Received : 2012.12.03
  • Accepted : 2013.01.25
  • Published : 2013.03.31
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Abstract

To analyze influences under open fault conditions in switching devices, an integrated simulation and condition monitoring scheme for a permanent magnet synchronous generator (PMSG) based variable speed grid-connected wind turbine system are presented. Among various faults in power electronics components, the open fault in switching devices may arise when the switches are destructed by an accidental over current, or a fuse for short protection is blown out. Under such a faulty condition, the grid-side inverter as well as the generator-side converter does not operate normally, producing an increase of current harmonics, and a reduction in output and efficiency. As an effective way for a condition monitoring of generation system by online basis without requiring any diagnostic apparatus, the estimation schemes for generated voltage, flux linkage, and stator resistance are proposed and the validity of the proposed scheme is proved through comparative simulations.

Keywords

References

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