전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2014년도 전력전자학술대회 논문집
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- Pages.341-342
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- 2014
모듈형 멀티레벨 컨버터로 구성된 고압직류 송전시스템의 제어
Control of a VSC-HVDC Transmission System based on Modular Multilevel Converters
- Cui, Shenghui (Department of Electrical and Computer Engineering, Seoul National University) ;
- Sul, Seung-Ki (Department of Electrical and Computer Engineering, Seoul National University)
- 발행 : 2014.07.01
초록
VSC-HVDC system based on Modular Multilevel Converter (MMC) is an emerging technology since compared to the conventional VSC-HVDC system an MMC presents several advantages such as modularity, low dv/dt, low harmonics, and low switching losses. In this paper, a comprehensive control strategy of an MMC-based VSC-HVDC system is proposed. In contrast to the conventional system control strategy, the DC side of the MMC operates as a controlled voltage source by the proposed method, and the dynamics of the transmission line voltage and current can be actively controlled. Validity of the proposed strategy was verified by 201-level full-scale computer simulation.
키워드