RBI Optimization of Offshore Wind Turbines

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Abstract

Wind turbines for electricity production have increased significantly the last years both in production capability and size. This development is expected to continue also in the coming years. Offshore wind turbines with an electricity production of 5-10 MW are planned. Typically, the wind turbine support structure is a steel structure consisting of a tower and a monopile, tripod or jacket type foundation. This paper considers aspects of inspection and maintenance planning of fatigue prone details in jacket and tripod type of wind turbine support structures. Based on risk-based inspection planning methods for oil & gas installations, a framework for optimal inspection and maintenance planning of offshore wind turbines is presented. Special aspects for offshore wind turbines considered are the fatigue loading characteristics where usually the wind loading are dominating the wave loading, wake effects in wind farms and also the reliability level which is typically significantly lower than for oil & gas installations. An illustrative example is presented.
Original languageEnglish
Title of host publicationProceedings IFIP WG7.5 Conference on Reliability and Optimization of Structural Systems
Number of pages12
PublisherThe IFIP International Conference on Research and Practical Issues of Enterprise Information Systems
Publication date2009
Publication statusPublished - 2009
EventIFIP WG7.5 Conference on Reliability and Optimization of Structural Systems - Toluca, Mexico
Duration: 6 Aug 20089 Aug 2008

Conference

ConferenceIFIP WG7.5 Conference on Reliability and Optimization of Structural Systems
Country/TerritoryMexico
CityToluca
Period06/08/200809/08/2008

Bibliographical note

Published on a cd.

Keywords

  • Inspection
  • Reliability
  • Decision analysis
  • Fatigue
  • Wake turbulence

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