DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count

Max A. Parker, Derrick Holliday, Stephen J. Finney

Research output: Contribution to journalArticle

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Abstract

Large offshore wind farms located far from shore, as are being planned or built in the North Sea, will require high-voltage DC (HVDC) transmission to shore, and multi-terminal HVDC could offer further benefits. Currently proposed methods to protect against faults in the DC network are based on extremely fast-acting DC circuit breakers located on all cable ends, leading to high cost. A method is proposed based around discharging the DC network to isolate the fault, which drastically reduces the circuit breaker requirement, while making use of the inherent current-limiting behaviour of the wind turbines. The validity of this approach is demonstrated in simulation.
Original languageEnglish
Pages (from-to)4511-4515
Number of pages5
JournalThe Journal of Engineering
Volume2019
Issue number17
Early online date26 Apr 2019
DOIs
Publication statusPublished - 17 Jun 2019
EventThe 9th International Conference on Power Electronics, Machines and Drives - Liverpool, United Kingdom
Duration: 17 Apr 201819 Apr 2018
Conference number: 9th
https://events.theiet.org/pemd/

Fingerprint

Electric circuit breakers
Wind power
HVDC power transmission
Offshore wind farms
Electric potential
Wind turbines
Cables
Costs

Keywords

  • offshore wind farm
  • North Sea
  • high voltage direct current
  • wind power

Cite this

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DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count. / Parker, Max A.; Holliday, Derrick; Finney, Stephen J.

In: The Journal of Engineering, Vol. 2019, No. 17, 17.06.2019, p. 4511-4515.

Research output: Contribution to journalArticle

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AU - Parker, Max A.

AU - Holliday, Derrick

AU - Finney, Stephen J.

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AB - Large offshore wind farms located far from shore, as are being planned or built in the North Sea, will require high-voltage DC (HVDC) transmission to shore, and multi-terminal HVDC could offer further benefits. Currently proposed methods to protect against faults in the DC network are based on extremely fast-acting DC circuit breakers located on all cable ends, leading to high cost. A method is proposed based around discharging the DC network to isolate the fault, which drastically reduces the circuit breaker requirement, while making use of the inherent current-limiting behaviour of the wind turbines. The validity of this approach is demonstrated in simulation.

KW - offshore wind farm

KW - North Sea

KW - high voltage direct current

KW - wind power

U2 - 10.1049/joe.2018.8149

DO - 10.1049/joe.2018.8149

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