Earticle

초록

영어

To analyze responses under open fault conditions in switching devices, a performance investigation and condition monitoring scheme are presented through an integrated simulation study of a permanent magnet synchronous generator (PMSG) based variable-speed grid-connected wind power system. Among various faults in power electronics components, the open fault in switching devices may arise due to the destruction of switches by an accidental over current or the forced disconnection for protection. When the switch open fault occurs in the generator-side converter, the grid-side inverter as well as the generator-side converter does not operate normally, resulting in an increase of the current harmonics and a reduction in generated output and efficiency. As an effective way of the condition monitoring for the generation system by online basis without requiring any diagnostic apparatus, the estimation schemes for the generated voltage, flux linkage, and stator resistance are proposed in this paper and the validity of the proposed scheme is proved through comparative simulations.

목차

Abstract
 1. Introduction
 2. Modeling of Wind Power Generation System
 3. PMSG-based variable-speed grid-connected Wind Power Systems
 4. Fault Model and Condition Monitoring of PMSG-based Variable-speedWind Power Systems
 5. Simulation result
 6. Conclusions
 Acknowledgements
 References

키워드

저자

• Kyeong-Hwa Kim [ Department of Electrical and Information Engineering Seoul National University of Science and Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605