Single-ended MMC-MTDC line protection based on dual-frequency amplitude ratio of traveling wave
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DOI: 10.1016/j.epsr.2020.106808
Abstract: Abstract Fast and reliable DC line protection is an essential challenge for the modular multilevel converter (MMC) based multi-terminal direct current (MTDC) grid. This paper proposed a novel single-ended protection scheme for DC lines in… read more here.
Keywords: protection; mmc mtdc; frequency; single ended ... See more keywords
Cosine Similarity Based Directional Comparison Scheme for Subcycle Transmission Line Protection
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DOI: 10.1109/tpwrd.2019.2962275
Abstract: Subcycle protection is of importance in the context of system operation near stability margins. A cosine similarity based directional comparison scheme using time-domain sampled data is proposed in this work for subcycle overhead line protection.… read more here.
Keywords: protection; fault; line; line protection ... See more keywords
Non-Unit Ultra-High-Speed DC Line Protection Method for HVDC Grids Using First Peak Time of Voltage
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DOI: 10.1109/tpwrd.2020.3013021
Abstract: The high-speed and selective dc line protection method is required for the safe operation of HVDC grids. In this paper, the expressions of the line-mode fault component voltage at the line end as well as… read more here.
Keywords: protection; line; line protection; hvdc grids ... See more keywords