Impact of rotor solidity on wind turbine fatigue and extreme loads

Romans Kazacoks; Peter Jamieson

Abstract

For offshore wind turbines, as compared to onshore machines, acoustic emission regulations are usually less restrictive. Higher design tip speeds than would be acceptable on land are being employed. For a given rated power, this reduces rated torque and hence can save weight and cost in the drive train. In this context, within a generic study of load trends considering influences of
turbine scale, wind conditions and key turbine design parameters, it is of particular interest to better understand the impact of changes of rotor speed and solidity on the fatigue and extreme loads of typical upwind, three bladed, horizontal axis wind turbines. For this paper the focus is to investigate the dependence of fatigue and extreme loads on rotor speed taking account of necessary changes to blade design to preserve near optimum aerodynamic
performance. This work helps to understand the impact of rotor solidity on design driving loads, which may be fatigue or extreme.

Original language	English
Number of pages	1
Publication status	Published - 2015
Event	RAVE Offshore Wind R&D Conference 2015 - ATLANTIC Hotel SAIL City, Bremerhaven, Germany Duration: 13 Oct 2015 → 15 Oct 2015 http://rave2012.iwes.fraunhofer.de/en/index_2015.html

Conference

Conference	RAVE Offshore Wind R&D Conference 2015
Country	Germany
City	Bremerhaven
Period	13/10/15 → 15/10/15
Internet address	http://rave2012.iwes.fraunhofer.de/en/index_2015.html

Keywords

fatigue loads
extreme loads
rotor solidity

Access to Document

Kazacoks-etal-RAVE-2015-Impact-of-rotor-solidity-on-wind-turbine-fatigueAccepted author manuscript, 179 KB

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Cite this

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title = "Impact of rotor solidity on wind turbine fatigue and extreme loads",

abstract = "For offshore wind turbines, as compared to onshore machines, acoustic emission regulations are usually less restrictive. Higher design tip speeds than would be acceptable on land are being employed. For a given rated power, this reduces rated torque and hence can save weight and cost in the drive train. In this context, within a generic study of load trends considering influences ofturbine scale, wind conditions and key turbine design parameters, it is of particular interest to better understand the impact of changes of rotor speed and solidity on the fatigue and extreme loads of typical upwind, three bladed, horizontal axis wind turbines. For this paper the focus is to investigate the dependence of fatigue and extreme loads on rotor speed taking account of necessary changes to blade design to preserve near optimum aerodynamicperformance. This work helps to understand the impact of rotor solidity on design driving loads, which may be fatigue or extreme.",

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year = "2015",

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T1 - Impact of rotor solidity on wind turbine fatigue and extreme loads

AU - Kazacoks, Romans

AU - Jamieson, Peter

PY - 2015

Y1 - 2015

N2 - For offshore wind turbines, as compared to onshore machines, acoustic emission regulations are usually less restrictive. Higher design tip speeds than would be acceptable on land are being employed. For a given rated power, this reduces rated torque and hence can save weight and cost in the drive train. In this context, within a generic study of load trends considering influences ofturbine scale, wind conditions and key turbine design parameters, it is of particular interest to better understand the impact of changes of rotor speed and solidity on the fatigue and extreme loads of typical upwind, three bladed, horizontal axis wind turbines. For this paper the focus is to investigate the dependence of fatigue and extreme loads on rotor speed taking account of necessary changes to blade design to preserve near optimum aerodynamicperformance. This work helps to understand the impact of rotor solidity on design driving loads, which may be fatigue or extreme.

AB - For offshore wind turbines, as compared to onshore machines, acoustic emission regulations are usually less restrictive. Higher design tip speeds than would be acceptable on land are being employed. For a given rated power, this reduces rated torque and hence can save weight and cost in the drive train. In this context, within a generic study of load trends considering influences ofturbine scale, wind conditions and key turbine design parameters, it is of particular interest to better understand the impact of changes of rotor speed and solidity on the fatigue and extreme loads of typical upwind, three bladed, horizontal axis wind turbines. For this paper the focus is to investigate the dependence of fatigue and extreme loads on rotor speed taking account of necessary changes to blade design to preserve near optimum aerodynamicperformance. This work helps to understand the impact of rotor solidity on design driving loads, which may be fatigue or extreme.

KW - fatigue loads

KW - extreme loads

KW - rotor solidity

M3 - Abstract

T2 - RAVE Offshore Wind R&D Conference 2015

Y2 - 13 October 2015 through 15 October 2015

ER -