지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.2
- 수록면
- 40 - 48 (9page)
- DOI
- 10.5207/JIEIE.2024.38.1.40
이용수
이 논문의 연구 히스토리 (8)
2023
2022
2021
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- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
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초록· 키워드
오류제보하기
Many studies have been conducted around the world to reduce carbon emissions. In the power sector, a policy is being implemented to reduce the proportion of coal power generation and convert to new and renewable energy. However, unlike synchronous generators, renewable power sources vary in power generation depending on environmental changes such as weather. And the increase in distributed generator means that the number of inverter-based power generator in the grid increases and the proportion of synchronous generators decreases. Therefore, the inertia and reserve power of the system are reduced, which poses a threat to system frequency stability. Generally, when analyzing frequency response, the lowest frequency (Frequency Nadir) and Rate of Change of Frequency (RoCoF) are used as representative indicators. To improve frequency stability, many studies have focused on grid-forming converters using inverters and virtual inertial control of wind power. In this paper, we propose a variable frequency transformer (VFT) method to improve the frequency stability of the power grid. VFT allows frequency variations and bidirectional power transmission by controlling the rotation direction and speed of the rotor and has rotational inertia. Using this feature, the grid frequency stability can be improved with VFT. The performance of the proposed scheme was verified through Matlab Simulink simulation.
목차
Abstract
1. 서론
2. 회전형 변압기 개요
3. 회전형 변압기 계통연계 시스템의 주파수 안정도 분석
4. 결론
References
참고문헌 (19)
참고문헌 신청
Ministry of Trade, “Industry and energy, the 10th basic electricity supply and demand plan,” 2022.
Energy Focus, “Impact and implications of solar and wind power generation on the power system,” 2020.
NERC, “Fast frequency response concepts and bulk power system reliablity needs,” 2020.
Hyeong-Jun Yoo, Gyeong-Hun Kim, and Jin Hong Jeon, “Transient response characteristics analysis of distributed generation based on virtual inertia,” The Transactions of the Korean Institute of Electrical Engineers, vol. 69, no. 5, pp. 664-670, 2020.
Yong Ha Kim, et al., “A study on estimation of ESS capacity for inputting wind and solar power in frequency stability,” Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, vol. 33, no. 2, pp. 53-59, 2019.
Energy Focus, “Impact and implications of solar and wind power generation on the power system,” 2020.
NERC, “Fast frequency response concepts and bulk power system reliablity needs,” 2020.
Hyeong-Jun Yoo, Gyeong-Hun Kim, and Jin Hong Jeon, “Transient response characteristics analysis of distributed generation based on virtual inertia,” The Transactions of the Korean Institute of Electrical Engineers, vol. 69, no. 5, pp. 664-670, 2020.
Yong Ha Kim, et al., “A study on estimation of ESS capacity for inputting wind and solar power in frequency stability,” Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, vol. 33, no. 2, pp. 53-59, 2019.
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