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논문 기본 정보

자료유형
학술저널
저자정보
Taiying Zheng (Chonbuk National University) Seung-Tae Cha (Technical University of Denmark) Yeon-Hee Kim (Chonbuk National University) Peter A. Crossley (University of Manchester) Sang Ho Lee (Korea Electrotechnology Research Institute) Yong Cheol Kang (Chonbuk National University)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.8 No.5
발행연도
2013.9
수록면
1,029 - 1,039 (11page)

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초록· 키워드

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To avoid undesirable disconnection of healthy wind generators (WGs) or a wind power plant, a WG protection relay should discriminate among faults, so that it can operate instantaneously for WG, connected feeder or connection bus faults, it can operate after a delay for inter-tie or grid faults, and it can avoid operating for parallel WG or adjacent feeder faults. A WG protection relay based on the positive- and negative-sequence fault components is proposed in the paper. At stage 1, the proposed relay uses the magnitude of the positive-sequence component in the fault current to distinguish faults requiring non-operation response from those requiring instantaneous or delayed operation responses. At stage 2, the fault type is first determined using the relationships between the positive- and negative-sequence fault components. Then, the relay differentiates between instantaneous operation and delayed operation based on the magnitude of the positive-sequence fault component. Various fault scenarios involving changes in position and type of fault and faulted phases are used to verify the performance of the relay. This paper concludes by implementing the relay on a hardware platform based on a digital signal processor. Results indicate that the relay can successfully distinguish the need for instantaneous, delayed, or non-operation.

목차

Abstract
1. Introduction
2. WPP Model and WG Relay Functions
3. Protection Relay for a WG based on Positiveand Negative-sequence Fault Components
4. Case Studies
5. Hardware Implementation
6. Conclusions
References

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