000004983 001__ 4983
000004983 005__ 20141120140001.0
000004983 04107 $$aeng
000004983 046__ $$k2008-06-25
000004983 100__ $$aToft, A. Henrik Stensgaard
000004983 24500 $$aRELIABILITY ANALYSIS OF WIND TURBINES

000004983 24630 $$n4.$$pProceedings of the 4th International ASRANet Colloquium
000004983 260__ $$bASRANet Ltd., 2008
000004983 506__ $$arestricted
000004983 520__ $$2eng$$aIn order to minimise the total expected life-cycle costs of a wind turbine it is important to estimate the reliability level for all components in the wind turbine. This paper deals with reliability analysis for the tower and blades of onshore wind turbines placed in a wind farm. The limit states considered are in the ultimate limit state (ULS) extreme conditions in the standstill position and extreme conditions during operating. For wind turbines, where the magnitude of the loads is influenced by the control system, the ultimate limit state can occur in both cases. In the fatigue limit state (FLS) the reliability level for a wind turbine placed in a wind farm is considered, and wake effects from neighbouring wind turbines is taken into account. An illustrative example with calculation of the reliability for mudline bending of the tower is considered. In the example the design is determined according to the wind turbine standard IEC 614001 “Wind turbines – Design requirements” and different stochastic models for the uncertainties are compared.

000004983 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004983 653__ $$a

000004983 7112_ $$a4th International ASRANet Colloquium$$cAthens (GR)$$d2008-06-25 / 2008-06-27$$gASRANet4
000004983 720__ $$aToft, A. Henrik Stensgaard$$iSørensen, B. John Dalsgaard
000004983 8560_ $$ffischerc@itam.cas.cz
000004983 8564_ $$s101184$$uhttps://invenio.itam.cas.cz/record/4983/files/019_Stensgaard_Toft,_Henrik.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 19.
000004983 962__ $$r4967
000004983 980__ $$aPAPER