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U.S. Department of Energy
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Wind Turbine Drivetrain Reliability [Slides]

Technical Report ·
DOI:https://doi.org/10.2172/1896902· OSTI ID:1896902

Pitch bearings, main bearings, and gearboxes in conventional wind turbine drivetrains often do not meet their 20-year minimum specified lifetime, resulting in turbine downtime as well as expensive, time-consuming repairs or replacements. The dominant failure modes of the drivetrain components and the conditions that lead to their failure are not fully accounted for during product design or routinely modeled for life management. Drivetrain reliability improvements and O&M cost reductions remain top priorities for both land-based and offshore wind turbines, especially as wind turbines continue to be deployed in increasingly remote and offshore locations, continue to increase in size, and are becoming expected to be in service beyond their original design life, all of which correspond to an increase in the impact of any reliability issues on O&M costs. This presentation summarizes the most recent activities by NREL and ANL on drivetrain reliability.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Wind Energy Technologies Office
DOE Contract Number:
AC36-08GO28308; AC02-06CH11357
OSTI ID:
1896902
Report Number(s):
NREL/PR-5000-84029; MainId:84802; UUID:9250b715-9fba-4d75-9865-8d7b05ee1ce2; MainAdminID:67872
Country of Publication:
United States
Language:
English

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