Energy Storage Opportunities and Capabilities in a Type 3 Wind Turbine Generator: Preprint

Research output: Contribution to conferencePaper


Wind power plants and other renewable power plants with power electronic interfaces are capable of delivering frequency response (both governor and/or inertial response) to the grid by a control action; thus, the reduction of available online inertia as conventional power plants are retired can be compensated by designing renewable power plant controls to include frequency response. The source of energy to be delivered as inertial response is determined by the type of generation and control strategy chosen. The cost of energy storage is expected to drop over time, and global research activities on energy storage are very active, funded both by the private industry and governments. Different industry sectors (e.g., transportation, energy) are the major drivers of the recent storage research and development. This work investigates the opportunities and capabilities of deploying energy storage in renewable power plants. In particular, we focus on wind power plants with doubly-fed induction generators, or Type 3 wind turbine generator (WTGs). We find that the total output power of a system with Type 3 WTGs with energy storage can deliver a power boost during inertial response that is up to 45% higher than one without energy storage without affecting the torque limit, thus enabling an effective delivery of ancillary services to the grid.
Original languageAmerican English
Number of pages7
StatePublished - 2016
Event2016 IEEE Energy Conversion Congress and Exposition - Milwaukee, Wisconsin
Duration: 18 Sep 201622 Sep 2016


Conference2016 IEEE Energy Conversion Congress and Exposition
CityMilwaukee, Wisconsin

NREL Publication Number

  • NREL/CP-5D00-66394


  • adjustable speed
  • ancillary services
  • doubly-fed induction generator
  • energy storage
  • frequency response
  • variable speed
  • wind power plant
  • wind turbine


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