| Description |
1 online resource (vi, 96 pages) : color illustrations. |
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text rdacontent |
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computer rdamedia |
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online resource rdacarrier |
| Series |
NREL/TP ; 5000-58190 |
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NREL/TP ; 5000-58190.
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| Note |
Title from PDF title screen (viewed Dec. 11, 2013). |
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"April 2013." |
| Type Of Report |
Technical report. |
| Summary |
Gearboxes in wind turbines have not been achieving their expected design life even though they commonly meet or exceed the design criteria specified in current design standards. One of the basic premises of the National Renewable Energy Laboratory (NREL) Gearbox Reliability Collaborative (GRC) is that the low gearbox reliability results from the absence of critical elements in the design process or insufficient design tools. Key goals of the GRC are to improve design approaches and analysis tools and to recommend practices and test methods resulting in improved design standards for wind turbine gearboxes that lower the cost of energy (COE) through improved reliability. The GRC uses a combined gearbox testing, modeling and analysis approach, along with a database of information from gearbox failures collected from overhauls and investigation of gearbox condition monitoring techniques to improve wind turbine operations and maintenance practices. Testing of Gearbox 2 (GB2) using the two-speed turbine controller that has been used in prior testing. This test series will investigate non-torque loads, high-speed shaft misalignment, and reproduction of field conditions in the dynamometer. This test series will also include vibration testing using an eddy-current brake on the gearbox's high speed shaft. |
| Bibliography |
Includes bibliographical references (page 39). |
| Funding |
This work was supported by the U.S. Department of Energy under contract no. DE-AC36-08GO28308 with the National Renewable Energy Laboratory; prepared under task no. WE11.0301 |
| Subject |
Wind turbines -- Testing.
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Gearing -- Design and construction.
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| Added Author |
National Renewable Energy Laboratory (U.S.), issuing body.
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| Gpo Item No. |
0430-P-03 (online) |
| Sudoc No. |
E 9.16:NREL/TP-5000-58190 |
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