Symmetrical and Unsymmetrical Fault Currents of a Wind Power Plant

V. Gevorgian, M. Singh, E. Muljadi

Research output: Contribution to conferencePaperpeer-review

11 Scopus Citations


The size of wind power plants (WPPs) keeps getting bigger and bigger. The number of wind plants in the U.S. has increased very rapidly in the past 10 years. It is projected that in the U.S., the total wind power generation will reach 330 GW by 2030. As the importance of WPPs increases, planning engineers must perform impact studies used to evaluate short-circuit current (SCC) contribution of the plant into the transmission network under different fault conditions. This information is needed to size the circuit breakers, to establish the proper system protection, and to choose the transient suppressor in the circuits within the WPP. This task can be challenging to protection engineers due to the topology differences between different types of wind turbine generators (WTGs) and the conventional generating units. This paper investigates the short-circuit behavior of a WPP for different types of wind turbines. Both symmetrical faults and unsymmetrical faults are investigated. Three different software packages are utilized to develop this paper. Time domain simulations and steady-state calculations are used to perform the analysis.

Original languageAmerican English
Number of pages8
StatePublished - 2012
Event2012 IEEE Power and Energy Society General Meeting - San Diego, California
Duration: 22 Jul 201226 Jul 2012


Conference2012 IEEE Power and Energy Society General Meeting
CitySan Diego, California

Bibliographical note

See NREL/CP-5500-53463 for preprint

NREL Publication Number

  • NREL/CP-5500-57684


  • Fault contribution
  • induction generator
  • protection
  • short circuit
  • wind power plant
  • wind turbine


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