WGRID-49 GMLC Project Report: Understanding the Role of Short-Term Energy Storage and Large Motor Loads for Active Power Controls by Wind Power

Vahan Gevorgian, Przemyslaw Koralewicz, Shahil Shah, Robert Wallen, David Corbus, Jonathan Keller, R. Hovsapian, M. Mohanpurkar, R. Kadavi, M. Pnawar, J. Leonard, M. Richwine, N. Miller, D. Gao, W. Yan, W. Gao

Research output: NRELTechnical Report


This project validates advanced controls for active power from wind generation, short-term energy storage, and large industrial motor drives for various types of ancillary grid services. It also evaluates wind turbine loading impacts such as drivetrain loads. The National Renewable Energy Laboratory (NREL), in collaboration with the Electric Power Research Institute (EPRI) and the University of Colorado, demonstrated active power controls (APC) by wind power during a 2013-2016 DOE research project [1]. This 3-year project (FY 2016-2018) was aimed at conducting a full-scale demonstration of advanced coordinated grid controls by utilizing the existing DOE assets at NREL in collaboration with Idaho National Laboratory (INL), Clemson University, and GE. This project addressed DOE goals in the area of Devices and Integrated Systems within the GMLC Foundational Topics 1-4, specifically by demonstrating how wind power can be tied to other technologies (energy storage and responsive regenerative loads in this case) for enhanced services and optimized wind O&M costs. This work utilized the $30 million, multiyear DOE investments and unique characteristics of NREL's existing NWTC grid-integration site, including a combination of multi-MW utility-scale wind turbine generators, 1-MW/1-MWh battery energy storage system (BESS), industrial variable-frequency motor drives (VFD), 1-MW solar PV array, and 7-MVA controllable grid interface (CGI). This combination of technologies allows for the optimization, testing, and demonstration of various types of advanced grid controls by wind power, in coordination with other generation sources including PV systems, variable-speed pumping, and energy storage. Another achievement of this project was that it developed and demonstrated controls for wind power and energy storage-combined with solar PV power-for operation of hybrid renewable plants with elements of dispatchability and provision of all types of the existing essential and future advanced reliability services. This was achieved by developing an advanced, one-of-a-kind power-hardware-in-the-loop (PHIL) test system to evaluate impacts of developed controls on power systems. It resulted in implementing new methods for characterizing wind turbine and BESS inverters, such as inverter impedance measurement-based characterization, full-range dynamic reactive power capability characterization, and impedance-based characterization of power system frequency response. With participation from the INL team, the concept of a distributed platform based on virtual interconnection of real-time digital simulators (RTDS) for utilizing assets and investments from geographically distant research facilities was demonstrated. This included a real-time Super Laboratory demonstration involving NREL, INL, Sandia National Laboratories, and five universities in the United States and Europe.
Original languageAmerican English
Number of pages174
StatePublished - 2019

NREL Publication Number

  • NREL/TP-5D00-72888


  • DOE
  • energy storage
  • GMLC
  • Grid Modernization Laboratory Consortium
  • large motor loads
  • power control
  • U.S. Department of Energy
  • wind


Dive into the research topics of 'WGRID-49 GMLC Project Report: Understanding the Role of Short-Term Energy Storage and Large Motor Loads for Active Power Controls by Wind Power'. Together they form a unique fingerprint.

Cite this