A review of the protection for the multi-terminal VSC-HVDC grid

The multi-terminal VSC-HVDC grid is believed to be widely applied in the future power system. The dc line protection is the key technique for operation security and power supply reliability of the dc grid. In this paper, the single-ended protections, namely, the traveling-wave based protection and t...

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Veröffentlicht in:	Protection and Control of Modern Power Systems 2019-11, Vol.4 (1), p.1-11, Article 21
Hauptverfasser:	Li, Bin, He, Jiawei, Li, Ye, Li, Botong
Format:	Artikel
Sprache:	eng
Schlagworte:	China Current differential protection Directional pilot protection Electric converters Electric power generation Electric power systems Electric power transmission Electrical Machines and Networks Energy Energy Systems Marine safety Multi-terminal VSC-HVDC grid Power Electronics Power supplies Renewable and Green Energy Review Transient-variable based protection Traveling-wave based protection
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Beschreibung
Zusammenfassung:	The multi-terminal VSC-HVDC grid is believed to be widely applied in the future power system. The dc line protection is the key technique for operation security and power supply reliability of the dc grid. In this paper, the single-ended protections, namely, the traveling-wave based protection and transient-variable based protection, as well as the pilot protections, mainly including the directional pilot protection and current differential protection, are discussed in detail. With the analyzed protections, the effective main and back-up protection strategy can be configured for the dc line in multi-terminal VSC-HVDC grid.
ISSN:	2367-2617 2367-0983
DOI:	10.1186/s41601-019-0136-2