Unidirectional Protection Strategy for Multi-terminal HVDC Grids

• DOI: 10.22149/teee.v1i4.71
• Publication Date: 2016-11-22T12:04:37Z
• Authors: Ataollah Mokhberd...; Nuno Silva; Helder Leite; Adriano Carvalho
• Keywords: Distribution board; Fuse (electrical); Power grid

Protection issue is identified as the main drawback of emerging multi-terminal HVDC grids. Multi-terminal grid demands fast short circuit fault current interruption. Fast DC breakers a promising solution can be implemented either bidirectional or unidirectional devices. In addition to less implementation cost, have power losses compared A protection strategy for based on breaking devices discussed and assessed in this paper. The performance examined under different scenarios fourterminal MMC-HVDC model. Furthermore, impacts converters also interruption surge arrester ratings are discussed.