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자료유형
학술저널
저자정보
오웅진 (경상대학교) 이연찬 (경상대학교) 최재석 (경상대학교) 윤용범 (한전) 김찬기 (한전) 임진택 (한국국제대)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제67권 제1호
발행연도
2018.1
수록면
8 - 15 (8page)

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New methodology for probabilistic reliability based grid expansion planning of HVDC in power system including Wind Turbine Generators(WTG) is developed in this paper. This problem is focused on scenario based ptimal selection technique to decide best connection bus of new transmission lines of HVDC in view point of adequacy reliability in power system including WTG. This requires two kinds of modeling and simulation for reliability evaluation. One is how is reliability evaluation model and simulation of WTG. Another is to develop a failure model of HVDC. First, reliability evaluation of power system including WTG needs multi-state simulation methodology because of intermittent characteristics of wind speed and nonlinear generation curve of WTG. Reliability methodology of power system including WTG has already been developed with considering multi-state simulation over the years in the world. The multi-state model already developed by authors is used for WTG reliability simulation in this study. Second, the power system including HVDC includes AC/DC converter and DC/AC inverter substation. The substation is composed of a lot of thyristor devices, in which devices have possibility of failure occurrence in potential. Failure model of AC/DC converter and DC/AC inverter substation in order to simulate HVDC reliability is newly proposed in this paper. Furthermore, this problem should be formulated in hierarchical level II(HLII) reliability evaluation because of best bus choice problem for connecting new HVDC and transmission lines consideration. HLII reliability simulation technique is not simple but difficult and complex. CmRel program, which is adequacy reliability evaluation program developed by authors, is extended and developed for this study. Using proposed method, new HVDC connected bus point is able to be decided at best reliability level successfully. Methodology proposed in this paper is applied to small sized model power system.

목차

Abstract
1. 서론
2. HLII 유효부하 및 신뢰도 지수평가
3. 풍력발전기(WTG) 신뢰도 평가모델
4. HVDC의 신뢰도 평가모델
5. 계산 흐름도
6. 사례연구
7. 결론
References

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