Voltage Impacts of Utility-Scale Distributed Wind

Research output: NRELTechnical Report

Abstract

Although most utility-scale wind turbines in the United States are added at the transmission level in large wind power plants, distributed wind power offers an alternative that could increase the overall wind power penetration without the need for additional transmission. This report examines the distribution feeder-level voltage issues that can arise when adding utility-scale wind turbines tothe distribution system. Four of the Pacific Northwest National Laboratory taxonomy feeders were examined in detail to study the voltage issues associated with adding wind turbines at different distances from the sub-station. General rules relating feeder resistance up to the point of turbine interconnection to the expected maximum voltage change levels were developed. Additional analysisexamined line and transformer overvoltage conditions.
Original languageAmerican English
Number of pages127
DOIs
StatePublished - 2014

NREL Publication Number

  • NREL/TP-5D00-61825

Keywords

  • distributed wind power
  • National Renewable Energy Laboratory (NREL)
  • NREL
  • transmission
  • voltage

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