Operational-Condition-Independent Criteria Dedicated to Monitoring Wind Turbine Generators: Preprint

J. Wang, R. Court, Shawn Sheng

Research output: Contribution to conferencePaper

Abstract

To date the existing wind turbine condition monitoring technologies and commercially available systems have not been fully accepted for improving wind turbine availability and reducing their operation and maintenance costs. One of the main reasons is that wind turbines are subject to constantly varying loads and operate at variable rotational speeds. As a consequence, the influences of turbinefaults and the effects of varying load and speed are coupled together in wind turbine condition monitoring signals. So, there is an urgent need to either introduce some operational condition de-coupling procedures into the current wind turbine condition monitoring techniques or develop a new operational condition independent wind turbine condition monitoring technique to maintain high turbineavailability and achieve the expected economic benefits from wind. The purpose of this paper is to develop such a technique. In the paper, three operational condition independent criteria are developed dedicated for monitoring the operation and health condition of wind turbine generators. All proposed criteria have been tested through both simulated and practical experiments. The experimentshave shown that these criteria provide a solution for detecting both mechanical and electrical faults occurring in wind turbine generators.
Original languageAmerican English
Number of pages9
StatePublished - 2012
EventASME 2012 International Mechanical Engineering Congress & Exposition - Houston, Texas
Duration: 9 Nov 201215 Nov 2012

Conference

ConferenceASME 2012 International Mechanical Engineering Congress & Exposition
CityHouston, Texas
Period9/11/1215/11/12

NREL Publication Number

  • NREL/CP-5000-55195

Keywords

  • condition monitoring
  • fault diagnosis
  • induction generator
  • wind turbine

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