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Title: NREL-Prime Next-Generation Drivetrain Dynamometer Test Report

Advances in wind turbine drivetrain technologies are necessary to improve reliability and reduce the cost of energy for land-based and offshore wind turbines. The NREL-Prime Next-Generation Drivetrain team developed a geared, medium-speed drivetrain that is lighter, more reliable and more efficient than existing designs. One of the objectives of Phase II of the project was to complete the detailed design, fabrication, and dynamometer testing of a 750 kilowatt (kW) drivetrain that includes the key gearbox innovations designed by Romax Technology and power converter innovations designed by DNV Kema Renewables. The purpose of this document is to summarize these tests completed in NREL's National Wind Technology Center 2.5 megawatt (MW) dynamometer.
 [1] ;  [2] ;  [3] ;  [4]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. Cinch, Inc., Moraga, CA (United States)
  3. DNV KEMA Renewables, Burlington, VT (United States)
  4. Romax Technology, Boulder, CO (United States)
Publication Date:
OSTI Identifier:
Report Number(s):
DOE Contract Number:
AC36-08GO28308; FOA-0000439
Resource Type:
Technical Report
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
Contributing Orgs:
Cinch, Inc., Moraga, CA (United States); DNV KEMA Renewables, Burlington, VT (United States); Romax Technology, Boulder, CO (United States)
Country of Publication:
United States
16 TIDAL AND WAVE POWER wind turbine; drivetrain; cost of energy; testing; next-generation drivetrain; NREL