Offshore wind turbine foundation monitoring, extrapolating fatigue measurements from fleetleaders to the entire wind farm

Wout Weijtjens, Nymfa Noppe, Tim Verbelen, Alexandros Iliopoulos, Christof Devriendt

Research output: Chapter in Book/Report/Conference proceedingConference paper

26 Citations (Scopus)

Abstract

The present contribution is part of the ongoing development of a fatigue assessment strategy driven purely on in-situ measurements on operational wind turbines. The primary objective is to estimate the remaining life time of existing wind farms and individual turbines by instrumenting part of the farm with a load monitoring setup. This load monitoring setup allows to measure interface loads and local stress histories. This contribution will discuss how these load measurements can be translated into a remaining life time assessment of the instrumented turbine. However, different conditions at the wind farm, such as turbulence, differences in water depth and foundation design will cause different turbines to fatigue at different rates.
In this paper we will use the load measurements on two oshore wind turbines in the Northwind offshore wind farm to perform a remaining useful lifetime analysis. By calculating the damage equivalent loads (DELs) on the turbines the fatigue progression is quantified for every 10
minute interval. These ten-minute allows to analyse the eect of site and environmental conditions of fatigue progression. The setup of two instrumented wind turbines also allows to use measurements on one turbine to predict consumed life time on the other turbine.
Original languageEnglish
Title of host publicationThe Science of Making Torque from Wind (TORQUE 2016)
PublisherIOP Publishing
Pages1-10
DOIs
Publication statusPublished - Oct 2016
EventTorque 2016 - Munich, Germany
Duration: 5 Oct 20167 Oct 2016

Publication series

NameJournal of Physics: Conference Series
Volume753
ISSN (Print)1742-6588
ISSN (Electronic)1742-6596

Conference

ConferenceTorque 2016
Country/TerritoryGermany
CityMunich
Period5/10/167/10/16

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