Impact of DFIG windfarms and instrument transformers on transient based protection

S.P. Le Blond, R.K. Aggarwal, I.F. Abdulhadi, Graeme Burt

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


The impact of wind generation on high frequency, transient-based overhead line protection is investigated. An 8 bus section of the 132kV Scottish network with a realistic DFIG-based wind farm model is simulated on a real time digital simulator. Short circuit studies are conducted on a double circuit overhead line adjacent to the wind farm. Three case studies are compared: the DFIG model, a model with instrument transducers and the control model. Analysis is conducted on frequency and time domain voltage and current waveforms measured at the wind farm bus. These show that, compared with the control case, the impact of each case is slight, but the CVT attenuates the higher frequencies of the voltage waveforms slightly more than the DFIG case.
Original languageUndefined/Unknown
Title of host publication10th IET International Conference on Developments in Power System Protection (DPSP 2010). Managing the Change,
Pages1 -5
Number of pages5
Publication statusPublished - 1 May 2010


  • instrument transformers
  • wind farms
  • transient based protection

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