NREL Gearbox Reliability Collaborative
Subtitle: comparing in-field gearbox response to different dynamometer test conditions : preprint
By: William LaCava ... [et al.].
Contributors: National Renewable Energy Laboratory (U.S.)
Series: NREL/CP -- 5000-51690; Conference paper (National Renewable Energy Laboratory (U.S.)) -- NREL/CP-5000-51690.
Publisher: National Renewable Energy Laboratory
Published: 2011
Place of publication: Golden, CO]
Language: eng
Format: [electronic resource] :
Number of pages: 25
Subjects: Wind turbines; Research; Design and construction; Gearing
Other titles: National Renewable Energy Laboratory Gearbox Reliability Collaborative
Description: The NREL/ DOE Gearbox Reliability Collaborative has been reviewing the design process of wind turbine gearboxes in order to identify ways to improve the reliability of this fundamental component. As part of this effort, two 750-kilowatt (kW) gearboxes were removed from an operating population and redesigned and rebuilt to meet current megawatt (MW) power standards using state-of-the-art technology. To date, 300+ hours of operational data, including over 125 signals, have been collected in the field and from NREL dynamometer testing on a 750-kW wind turbine platform. This data includes both internal and external loads, motions, deflections and other response during a broad range of operating modes and conditions. This paper compares measured gearbox response in the NREL dynamometer to gearbox response during field testing. It then describes the way in which dynamometer testing has been improved to better represent field loading conditions. Conclusions and recommendations are made for augmented dynamometer testing.
Notes: Title from PDF title screen (viewed on September 12, 2011).

"Presented at WINDPOWER 2011, Anaheim, California, May 23-25, 2011."

"August 2011."

Includes bibliographical references (p. 22-23).

DE-AC36-08GO28308

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