Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits

Agustí Egea-Alvarez, Carl Barker, Fainan Hassan, Oriol Gomis-Bellmunt

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

8 Citations (Scopus)

Abstract

The connection point of a VSC-HVDC for the transmission of RES electricity, can be located far from the large generation plants, leading to a weak grid connection. This paper analyses the limitations on the power flow transfer through a VSCHVDC system connected to a weak grid. First, the impact of the angle and voltage stability limits and the VSC rating are examined. Then, the power transfer capability curves of a VSC connected to a weak grid of an SCR of 1.1 pu by means of an L-interface are calculated. Finally, the impact of providing additional reactive power (Q) support is investigated through utilising a capacitor at the connection point. It has been shown that an additional Q-support of 0.2 pu can maintain the transfer of full power without the need for oversizing the VSC.

Original languageEnglish
Title of host publication AC and DC Power Transmission, 11th IET International Conference on
Number of pages5
Volume2015
EditionCP654
DOIs
Publication statusPublished - 13 Jul 2015
Externally publishedYes
Event11th IET International Conference on AC and DC Power Transmission - Birmingham, United Kingdom
Duration: 10 Feb 201512 Feb 2015
http://conferences.theiet.org/acdc/index.cfm

Conference

Conference11th IET International Conference on AC and DC Power Transmission
CountryUnited Kingdom
CityBirmingham
Period10/02/1512/02/15
Internet address

Fingerprint

Reactive power
Thyristors
Voltage control
Capacitors
Electricity

Keywords

  • capability curves
  • short circuit ratio (SCR)
  • VSC-HVDC
  • weak grids

Cite this

Egea-Alvarez, A., Barker, C., Hassan, F., & Gomis-Bellmunt, O. (2015). Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits. In AC and DC Power Transmission, 11th IET International Conference on (CP654 ed., Vol. 2015) https://doi.org/10.1049/cp.2015.0091
Egea-Alvarez, Agustí ; Barker, Carl ; Hassan, Fainan ; Gomis-Bellmunt, Oriol. / Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits. AC and DC Power Transmission, 11th IET International Conference on. Vol. 2015 CP654. ed. 2015.
@inproceedings{e7876a4a57344c1886a1fd6b4df6a9bb,
title = "Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits",
abstract = "The connection point of a VSC-HVDC for the transmission of RES electricity, can be located far from the large generation plants, leading to a weak grid connection. This paper analyses the limitations on the power flow transfer through a VSCHVDC system connected to a weak grid. First, the impact of the angle and voltage stability limits and the VSC rating are examined. Then, the power transfer capability curves of a VSC connected to a weak grid of an SCR of 1.1 pu by means of an L-interface are calculated. Finally, the impact of providing additional reactive power (Q) support is investigated through utilising a capacitor at the connection point. It has been shown that an additional Q-support of 0.2 pu can maintain the transfer of full power without the need for oversizing the VSC.",
keywords = "capability curves, short circuit ratio (SCR), VSC-HVDC, weak grids",
author = "Agust{\'i} Egea-Alvarez and Carl Barker and Fainan Hassan and Oriol Gomis-Bellmunt",
year = "2015",
month = "7",
day = "13",
doi = "10.1049/cp.2015.0091",
language = "English",
isbn = "9781849199827",
volume = "2015",
booktitle = "AC and DC Power Transmission, 11th IET International Conference on",
edition = "CP654",

}

Egea-Alvarez, A, Barker, C, Hassan, F & Gomis-Bellmunt, O 2015, Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits. in AC and DC Power Transmission, 11th IET International Conference on. CP654 edn, vol. 2015, 11th IET International Conference on AC and DC Power Transmission, Birmingham, United Kingdom, 10/02/15. https://doi.org/10.1049/cp.2015.0091

Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits. / Egea-Alvarez, Agustí; Barker, Carl; Hassan, Fainan; Gomis-Bellmunt, Oriol.

AC and DC Power Transmission, 11th IET International Conference on. Vol. 2015 CP654. ed. 2015.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits

AU - Egea-Alvarez, Agustí

AU - Barker, Carl

AU - Hassan, Fainan

AU - Gomis-Bellmunt, Oriol

PY - 2015/7/13

Y1 - 2015/7/13

N2 - The connection point of a VSC-HVDC for the transmission of RES electricity, can be located far from the large generation plants, leading to a weak grid connection. This paper analyses the limitations on the power flow transfer through a VSCHVDC system connected to a weak grid. First, the impact of the angle and voltage stability limits and the VSC rating are examined. Then, the power transfer capability curves of a VSC connected to a weak grid of an SCR of 1.1 pu by means of an L-interface are calculated. Finally, the impact of providing additional reactive power (Q) support is investigated through utilising a capacitor at the connection point. It has been shown that an additional Q-support of 0.2 pu can maintain the transfer of full power without the need for oversizing the VSC.

AB - The connection point of a VSC-HVDC for the transmission of RES electricity, can be located far from the large generation plants, leading to a weak grid connection. This paper analyses the limitations on the power flow transfer through a VSCHVDC system connected to a weak grid. First, the impact of the angle and voltage stability limits and the VSC rating are examined. Then, the power transfer capability curves of a VSC connected to a weak grid of an SCR of 1.1 pu by means of an L-interface are calculated. Finally, the impact of providing additional reactive power (Q) support is investigated through utilising a capacitor at the connection point. It has been shown that an additional Q-support of 0.2 pu can maintain the transfer of full power without the need for oversizing the VSC.

KW - capability curves

KW - short circuit ratio (SCR)

KW - VSC-HVDC

KW - weak grids

UR - http://www.scopus.com/inward/record.url?scp=84939233026&partnerID=8YFLogxK

U2 - 10.1049/cp.2015.0091

DO - 10.1049/cp.2015.0091

M3 - Conference contribution book

SN - 9781849199827

VL - 2015

BT - AC and DC Power Transmission, 11th IET International Conference on

ER -

Egea-Alvarez A, Barker C, Hassan F, Gomis-Bellmunt O. Capability curves of a VSC-HVDC connected to a weak AC grid considering stability and power limits. In AC and DC Power Transmission, 11th IET International Conference on. CP654 ed. Vol. 2015. 2015 https://doi.org/10.1049/cp.2015.0091