Reliability of floating foundation concepts for vertical axis wind turbines

A. J. Kolios, M. Collu, F. P. Brennan

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

2 Citations (Scopus)

Abstract

Offshore wind turbines are developing at a rapid pace. By far the most common turbine configuration is the HAWT (Horizontal Axis Wind Turbine) and development of these machines is largely centered about drive train and blade issues with some work concerning foundations/supporting structures. Several teams around the world are developing fl oating supporting structures for HAWT, mainly for deep water deployment. This paper describes the development of a fl oating support structure for Vertical Axis Wind Turbines (VAWT) with particular focus on structural/survival risk and reliability. Unlike Oil & Gas fl oating support structures, wind turbine fl oaters need to resist significant dynamic wind and machine loading in addition to wave excitation. Therefore, structures should be designed in a way to comply with reliability requirements proposed by corresponding regulatory bodies and classification societies. This paper describes a simplified procedure for risk assessment so that potential areas of concern can be quickly identified and uses a VAWT to illustrate the methods and reasoning employed.

Original languageEnglish
Title of host publication11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010
Pages1483-1491
Number of pages9
Volume2
Publication statusPublished - 1 Dec 2010
Event11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010 - Rio de Janeiro, Brazil
Duration: 19 Sep 201024 Sep 2010

Conference

Conference11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010
CountryBrazil
CityRio de Janeiro
Period19/09/1024/09/10

Keywords

  • offshore wind turbines
  • reliability assessment
  • target relibility
  • vertical axis wind turbines

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