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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 2,812 - 2,820 (9page)
- DOI
- https://doi.org/10.1016/j.net.2020.05.018
이용수
초록· 키워드
오류제보하기
House load operation (HLO) occurs when the generator supplies power to the house load withouttriggering reactor trips during grid disturbances. In Korea, the HLO capability of optimized power reactor1000 (OPR1000) plants has prevented several reactor trips.
Operational experiences demonstrate the difference in the reactor trip incidence due to grid disturbances between OPR1000 plants and Westinghouse plants in Korea, attributable to the availability of theHLO capability. However, probabilistic safety assessments (PSAs) for OPR1000 plants have not consideredtheir specific design features in the initiating event analyses.
In an at-power PSA, the HLO capability can affect the initiating event frequencies of general transients(GTRN) and loss of offsite power (LOOP), resulting from transients within the grid system. The initiatingevent frequencies of GTRN and LOOP for an OPR1000 plant are reduced by 17.7% and 78.7%, respectively,compared to the Korean industry-average initiating event frequencies, and its core damage frequencyfrom internal events is reduced by 15.2%. The explicit consideration of the HLO capability in initiatingevent analyses makes significant changes in the risk contributions of the initiating events. Consequently,for more realistic at-power PSAs in Korea, we recommend incorporating plant-specific HLO-relateddesign features when estimating initiating event frequencies.
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
International Atomic Energy Agency / 2018 / Non-Baseload Operation in Nuclear Power Plants: Load Following and Frequency Control Modes of Flexible Operation
Nuclear Energy Agency / 2009 / Defence in Depth of Electrical Systems and Grid Interaction
Nuclear Energy Agency / 2017 / Probabilistic Safety Assessment Insights Relating to the Loss of Electrical Sources
https://www.kepco-enc.com/eng/contents.do?key¼1532
S.W. Sohn / 1998 / Evaluation of load rejection to house load test at 100% power for UCN 3 / Proceedings of the Korean Nuclear Society 1998 Autumn Conference
Nuclear Energy Agency / 2009 / Defence in Depth of Electrical Systems and Grid Interaction
Nuclear Energy Agency / 2017 / Probabilistic Safety Assessment Insights Relating to the Loss of Electrical Sources
https://www.kepco-enc.com/eng/contents.do?key¼1532
S.W. Sohn / 1998 / Evaluation of load rejection to house load test at 100% power for UCN 3 / Proceedings of the Korean Nuclear Society 1998 Autumn Conference
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