Investigation of Various Wind Turbine Drivetrain Condition Monitoring Techniques

S. Sheng, F. Oyague, S. Butterfield

Research output: Contribution to conferencePaperpeer-review

8 Scopus Citations

Abstract

The wind industry has experienced premature turbine component failures during the past years. With the increase in turbine size, these failures, especially those found in the major drivetrain components, i.e. main shaft, gearbox, and generator, have become extremely costly. Given that the gearbox is the most costly component in the drivetrain to fix, the National Renewable Energy Laboratory (NREL) initiated the Gearbox Reliability Collaborative (GRC) to determine the causes for premature gearbox failures and subsequently, recommend improvements to gearbox design, manufacture, and operational practices. The GRC has two identical test gearboxes, which are planned for a dynamometer and a field test, respectively. Condition Monitoring (CM) is one research area under the GRC. Its near-term goal is to establish some baseline responses for CM systems based on the dynamometer and field tests. Its long-term goals are to correlate the CM outputs with the turbine operational conditions (e.g., rpm, power, etc.) and/or dynamic measurements (e.g., strain, displacement, etc.) of drivetrain components, identify possible causes for abnormal CM readings and/or component failures, and subsequently, recommend strategies for improvement. The GRC CM will be implemented by integrating stress wave, vibration, and lubricant monitoring techniques. The specific CM systems will be set up in collaboration with their commercial suppliers. These CM techniques will be evaluated in both the dynamometer and field tests. Initial startup tests in the dynamometer have been conducted. This paper discusses some of the preliminary test results.

Original languageAmerican English
Pages1579-1586
Number of pages8
StatePublished - 2009
Event7th International Workshop on Structural Health Monitoring: From System Integration to Autonomous Systems, IWSHM 2009 - Stanford, United States
Duration: 9 Sep 200911 Sep 2009

Conference

Conference7th International Workshop on Structural Health Monitoring: From System Integration to Autonomous Systems, IWSHM 2009
Country/TerritoryUnited States
CityStanford
Period9/09/0911/09/09

NREL Publication Number

  • NREL/CP-500-46160

Keywords

  • drivetrain
  • drivetrain components
  • gearboxes
  • generators
  • main shaft
  • premature gearbox failure
  • wind turbine

Fingerprint

Dive into the research topics of 'Investigation of Various Wind Turbine Drivetrain Condition Monitoring Techniques'. Together they form a unique fingerprint.

Cite this