Simulated Switching Transients in the External Grid of Walney Offshore Wind Farm

Iván Arana Aristi, D. T. Johnsen, T. Soerensen, Joachim Holbøll

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Abstract

This paper presents the results of several simulations to assess the highest possible line-to-line overvoltage at the terminals of wind turbine converters after the switching operation of a cable or capacitor bank in the external grid of Walney 1, one of two phases of Walney Offshore Wind Farm. These switching operations were simulated using the EMT software PSCAD/EMTDC A number of parameters were varied in order to determine the most critical transients. Based on the results, it was concluded that the worst line-to-line transient overvoltage occurred in the DC05 and EF06 turbines, when a 25km cable is connected at 152ms and when the wind turbines are producing 100% of maximum apparent power. The magnitude of the worts transient would not reach 1.2kV.
Original languageEnglish
Title of host publication10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms : Proceedings
Publication date2011
ISBN (Print)978-3-9813870-3-2
Publication statusPublished - 2011
Event10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms - Aarhus, Denmark
Duration: 25 Oct 201126 Oct 2011
http://www.windintegrationworkshop.org/aarhus2011/index.html

Workshop

Workshop10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Farms
CountryDenmark
CityAarhus
Period25/10/201126/10/2011
Internet address

Keywords

  • Cable energization
  • Wind Farm
  • Capacitor bank
  • EMT simulations
  • switching overvoltages

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