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논문 기본 정보

자료유형
학술대회자료
저자정보
M. Poikilidis (DNV GL) E. Kontos (Delft University of Technology) P. Bauer (Delft University of Technology)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
1,551 - 1,558 (8page)

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초록· 키워드

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As the number of high voltage (HVDC) installations is increasing, there is a growing need for interconnection to create more efficient grids. To tackle the main challenges in HVDC grids, a multiport DC-DC converter, often referred to as DC hub, is considered a solution. This paper provides a methodology for the clearing of AC faults within the DC hub and the protection of the system during a fault. A methodology is also presented for the safe connection or disconnection of additional ports from the DC hub without affecting the operation of the other ports. A design based on modular multilevel converters (MMC) is chosen due to their inherent advantages and its control operation is described. A DC hub was modelled in Matlab/Simulink and was tested in a case study including the interconnection of three DC lines in symmetric monopolar configuration, operating at different voltage levels.

목차

Abstract
I. INTRODUCTION
II. MODELING OF THE MMC AND CONTROL STRATEGIES
III. METHODOLOGY FOR THE CONNECTION/DISCONNECTION OF PORTS
IV. METHODOLOGY FOR CLEARING AC FAULTS WITHIN THE DC HUB
V. METHODOLOGY FOR CLEARING AC FAULTS AT THE PORT CONTROLLING THE VOLTAGE OF THE AC LINK
VI. CONCLUSIONS
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