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Transient Negative-sequence Component Calculation for Large Generator Based on Wavelet Transform

첫 페이지 보기
  • 발행기관
    보안공학연구지원센터(IJSIP) 바로가기
  • 간행물
    International Journal of Signal Processing, Image Processing and Pattern Recognition 바로가기
  • 통권
    Vol.8 No.10 (2015.10)바로가기
  • 페이지
    pp.81-90
  • 저자
    Wu Guo, Bao-jun Ge, Jian Guo, Yun-peng Gao
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A255752

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원문정보

초록

영어
The current in frequency domain can not be analyzed at the same time because of the limitations of the Fourier transform algorithm. Hence, the wavelet transform method is used to analyze the short circuit transient current and calculate the negative-sequence component in this paper. Then, the non-periodic component and periodic component fundamental wave of the transient current are obtained, and the high harmonic components and decreased periodic component are removed. The non-periodic component is seriously considered in the transient negative-sequence component calculation. The calculation results indicate that the transient negative-sequence component contains two parts, the equivalent negative-sequence component of non-periodic component and the negative-sequence component of negative-sequence current. The world's first AP1000 third generation 1250 MVA nuclear half-speed (4-pole) turbo-generator is adopted as the calculation model. The transient parameters of the large generator are calculated on the principle of transformed current waveform in the internal short circuit fault condition. Furthermore, the transient negative-sequence component of the large-capacity generator is also calculated and the negative-sequence ability is deeply discussed in this work, which provides a theoretical basis for the large generators’ protection and design.

목차

Abstract
 1. Introduction
 2. Fault Analysis of Large Generator Model
 3. Application of Wavelet Transform in Transient Current Analysis
 4. Transient Parameters Calculations
 5. Transient Negative-sequence Component Calculation
 6. Conclusions
 Acknowledgements
 References

키워드

negative-sequence component transient current analysis large generator wavelet transform internal short circuit fault

저자

  • Wu Guo [ Collage of Electrical and Electronic Engineering Harbin University of Science and Technology, Harbin, China ]
  • Bao-jun Ge [ Collage of Electrical and Electronic Engineering Harbin University of Science and Technology, Harbin, China ]
  • Jian Guo [ Collage of Architecture and Civil Engineering Qiqihar University, Qiqihar, China ]
  • Yun-peng Gao [ Collage of Electrical and Electronic Engineering Harbin University of Science and Technology, Harbin, China ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    보안공학연구지원센터(IJSIP) [Science & Engineering Research Support Center, Republic of Korea(IJSIP)]
  • 설립연도
    2006
  • 분야
    공학>컴퓨터학
  • 소개
    1. 보안공학에 대한 각종 조사 및 연구 2. 보안공학에 대한 응용기술 연구 및 발표 3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최 4. 보안공학 기술의 상호 협조 및 정보교환 5. 보안공학에 관한 표준화 사업 및 규격의 제정 6. 보안공학에 관한 산학연 협동의 증진 7. 국제적 학술 교류 및 기술 협력 8. 보안공학에 관한 논문지 발간 9. 기타 본 회 목적 달성에 필요한 사업

간행물

  • 간행물명
    International Journal of Signal Processing, Image Processing and Pattern Recognition
  • 간기
    격월간
  • pISSN
    2005-4254
  • 수록기간
    2008~2016
  • 십진분류
    KDC 505 DDC 605

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