Fatigue Reliability and Effective Turbulence Models in Wind Farms

John Dalsgaard Sørensen; S. Frandsen; N.J. Tarp-Johansen

Fatigue Reliability and Effective Turbulence Models in Wind Farms

John Dalsgaard Sørensen, S. Frandsen, N.J. Tarp-Johansen

Sektionen for Konstruktioner, Geoteknik og Risiko

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

10 Citationer (Scopus)

1677 Downloads (Pure)

Abstract

Offshore wind farms with 100 or more wind turbines are expected to be installed many places during the next years. Behind a wind turbine a wake is formed where the mean wind speed decreases slightly and the turbulence intensity increases significantly. This increase in turbulence intensity in wakes behind wind turbines can imply a significant reduction in the fatigue lifetime of wind turbines placed in wakes. In this paper the design code model in the wind turbine code IEC 61400-1 (2005) is evaluated from a probabilistic point of view, including the importance of modeling the SN-curve by linear or bi-linear models. Further, the influence on the fatigue reliability is investigated from modeling the fatigue response by a stochastic part related to the ambient turbulence and the eigenfrequencies of the structure and a deterministic, sinusoidal part with frequency of revolution of the rotor.

Originalsprog	Engelsk
Titel	ICASP10 : Applications of Statistics and Probability in Civil Engineering : Proceedings of the 10th International Conference, Held in Tokyo, Japan, 31 July - 3 August 2007
Redaktører	Jun Kanda, Tsuyoshi Takada, Hitoshi Furuta
Antal sider	8
Forlag	Marcel Dekker
Publikationsdato	2007
ISBN (Elektronisk)	9780415452120
Status	Udgivet - 2007
Begivenhed	The International Conference on Applications of Statistics and Probability in Civil Engineering - Tokyo, Japan Varighed: 31 jul. 2007 → 3 aug. 2007 Konferencens nummer: 10

Konference

Konference	The International Conference on Applications of Statistics and Probability in Civil Engineering
Nummer	10
Land/Område	Japan
By	Tokyo
Periode	31/07/2007 → 03/08/2007

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Fatigue Reliability and Effective Turbulence Models in Wind FarmsForlagets udgivne version, 569 KB

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Citationsformater

Sørensen, John Dalsgaard ; Frandsen, S. ; Tarp-Johansen, N.J. / Fatigue Reliability and Effective Turbulence Models in Wind Farms. ICASP10 : Applications of Statistics and Probability in Civil Engineering: Proceedings of the 10th International Conference, Held in Tokyo, Japan, 31 July - 3 August 2007. red. / Jun Kanda ; Tsuyoshi Takada ; Hitoshi Furuta. Marcel Dekker, 2007.

@inproceedings{7cdebf80441f11dc977d000ea68e967b,

title = "Fatigue Reliability and Effective Turbulence Models in Wind Farms",

abstract = "Offshore wind farms with 100 or more wind turbines are expected to be installed many places during the next years. Behind a wind turbine a wake is formed where the mean wind speed decreases slightly and the turbulence intensity increases significantly. This increase in turbulence intensity in wakes behind wind turbines can imply a significant reduction in the fatigue lifetime of wind turbines placed in wakes. In this paper the design code model in the wind turbine code IEC 61400-1 (2005) is evaluated from a probabilistic point of view, including the importance of modeling the SN-curve by linear or bi-linear models. Further, the influence on the fatigue reliability is investigated from modeling the fatigue response by a stochastic part related to the ambient turbulence and the eigenfrequencies of the structure and a deterministic, sinusoidal part with frequency of revolution of the rotor.",

keywords = "Off-shore Wind turbines, Wind turbines, Wind farms, Design code model, IEC 61400-1 (2005), Probabilistic",

author = "S{\o}rensen, {John Dalsgaard} and S. Frandsen and N.J. Tarp-Johansen",

year = "2007",

language = "English",

editor = "Jun Kanda and Tsuyoshi Takada and Hitoshi Furuta",

booktitle = "ICASP10 : Applications of Statistics and Probability in Civil Engineering",

publisher = "Marcel Dekker",

address = "United States",

note = "The International Conference on Applications of Statistics and Probability in Civil Engineering ; Conference date: 31-07-2007 Through 03-08-2007",

}

Sørensen, JD, Frandsen, S & Tarp-Johansen, NJ 2007, Fatigue Reliability and Effective Turbulence Models in Wind Farms. i J Kanda, T Takada & H Furuta (red), ICASP10 : Applications of Statistics and Probability in Civil Engineering: Proceedings of the 10th International Conference, Held in Tokyo, Japan, 31 July - 3 August 2007. Marcel Dekker, The International Conference on Applications of Statistics and Probability in Civil Engineering, Tokyo, Japan, 31/07/2007.

Fatigue Reliability and Effective Turbulence Models in Wind Farms. / Sørensen, John Dalsgaard; Frandsen, S.; Tarp-Johansen, N.J.
ICASP10 : Applications of Statistics and Probability in Civil Engineering: Proceedings of the 10th International Conference, Held in Tokyo, Japan, 31 July - 3 August 2007. red. / Jun Kanda; Tsuyoshi Takada; Hitoshi Furuta. Marcel Dekker, 2007.

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning › peer review

TY - GEN

T1 - Fatigue Reliability and Effective Turbulence Models in Wind Farms

AU - Sørensen, John Dalsgaard

AU - Frandsen, S.

AU - Tarp-Johansen, N.J.

N1 - Conference code: 10

PY - 2007

Y1 - 2007

N2 - Offshore wind farms with 100 or more wind turbines are expected to be installed many places during the next years. Behind a wind turbine a wake is formed where the mean wind speed decreases slightly and the turbulence intensity increases significantly. This increase in turbulence intensity in wakes behind wind turbines can imply a significant reduction in the fatigue lifetime of wind turbines placed in wakes. In this paper the design code model in the wind turbine code IEC 61400-1 (2005) is evaluated from a probabilistic point of view, including the importance of modeling the SN-curve by linear or bi-linear models. Further, the influence on the fatigue reliability is investigated from modeling the fatigue response by a stochastic part related to the ambient turbulence and the eigenfrequencies of the structure and a deterministic, sinusoidal part with frequency of revolution of the rotor.

AB - Offshore wind farms with 100 or more wind turbines are expected to be installed many places during the next years. Behind a wind turbine a wake is formed where the mean wind speed decreases slightly and the turbulence intensity increases significantly. This increase in turbulence intensity in wakes behind wind turbines can imply a significant reduction in the fatigue lifetime of wind turbines placed in wakes. In this paper the design code model in the wind turbine code IEC 61400-1 (2005) is evaluated from a probabilistic point of view, including the importance of modeling the SN-curve by linear or bi-linear models. Further, the influence on the fatigue reliability is investigated from modeling the fatigue response by a stochastic part related to the ambient turbulence and the eigenfrequencies of the structure and a deterministic, sinusoidal part with frequency of revolution of the rotor.

KW - Off-shore Wind turbines

KW - Wind turbines

KW - Wind farms

KW - Design code model

KW - IEC 61400-1 (2005)

KW - Probabilistic

M3 - Article in proceeding

BT - ICASP10 : Applications of Statistics and Probability in Civil Engineering

A2 - Kanda, Jun

A2 - Takada, Tsuyoshi

A2 - Furuta, Hitoshi

PB - Marcel Dekker

T2 - The International Conference on Applications of Statistics and Probability in Civil Engineering

Y2 - 31 July 2007 through 3 August 2007

ER -

Fatigue Reliability and Effective Turbulence Models in Wind Farms

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