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

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.

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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title = "DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count",
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.",
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author = "Parker, {Max A.} and Derrick Holliday and Finney, {Stephen J.}",
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doi = "10.1049/joe.2018.8149",
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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

TY - JOUR

T1 - DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count

AU - Parker, Max A.

AU - Holliday, Derrick

AU - Finney, Stephen J.

PY - 2019/6/17

Y1 - 2019/6/17

N2 - 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.

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

M3 - Article

VL - 2019

SP - 4511

EP - 4515

JO - The Journal of Engineering

T2 - The Journal of Engineering

JF - The Journal of Engineering

SN - 2051-3305

IS - 17

ER -