The impact of wind farms with fixed speed induction generators on grid damping in Northern Ireland

D. Wilson, Z. Lubosny, J. W. Bialek

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The study reported in this paper was prompted by a discovery that oscillations at the output of a Fixed Speed Induction Generator (FSIG) farm in Northern Ireland power system can reach about 6-10% of the farm output. The oscillations were mostly due to 1P and 3P effects. The analysis was performed by detailed time and frequency-domain modelling of the NIE power system with the Republic of Ireland power system represented by an equivalent generator. The study found that fixed-speed induction generators were interacting with the dynamics of the power system and were shown to have a negative influence on the stability. The results indicate that 1P and 3P oscillation may interact with system modes, and especially the inter-area mode. As long as the system modes are well damped, 1P and 3P effects should not present a significant risk. However if the system is subject to a periodic force at a frequency that is close to a mode that is marginally stable, the effect could be significant.

Original languageEnglish
Title of host publication17th Power Systems Computation Conference, PSCC 2011
PublisherPower Systems Computation Conference ( PSCC )
ISBN (Electronic)9789175012575
Publication statusPublished - 2011
Externally publishedYes
Event17th Power Systems Computation Conference, PSCC 2011 - Stockholm, Sweden
Duration: 22 Aug 201126 Aug 2011

Publication series

Name17th Power Systems Computation Conference, PSCC 2011

Conference

Conference17th Power Systems Computation Conference, PSCC 2011
Country/TerritorySweden
CityStockholm
Period22/08/1126/08/11

Keywords

  • Power system dynamic stability
  • Wind power generation

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