Dynamic modeling and analysis of a wind turbine drivetrain using the torsional dynamic model

Shi, Wei; Kim, Chang-Wan; Chung, C. W.; Park, Hyun-Chul

doi:10.1007/s12541-013-0021-2

Cited by 56 publications

(34 citation statements)

References 14 publications

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“…1 Besides the industrial application success, many researchers have made significant contributions to the wind energy technology. [2][3][4][5] In recent years, offshore wind energy has attracted more attention due to better wind conditions and negligible visual impact compared with onshore wind energy. Although offshore wind energy has experienced rapid development, there is still a growing global demand for wind energy production.…”

Section: Introductionmentioning

confidence: 99%

Soil-structure interaction on the response of jacket-type offshore wind turbine

Park

Chung

Shin

et al. 2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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Jacket structures are still at the early stage of their development for use in the offshore wind industry. The aim of this paper is to investigate the effect of the soil-structure interaction on the response of an offshore wind turbine with a jacket-type foundation. For this purpose, two different models of flexible foundation-the p-y model and the p-y model considering pile groups effect-are employed to compare the dynamic responses with the fixed-base model. The modal analysis and the coupled dynamic analysis are carried out under deterministic and stochastic conditions. The influence of the soil-structure interaction on the response of the jacket foundation predicts that the flexible foundation model is necessary to estimate the loads of the offshore wind turbine structure well. It is suggested that during fatigue analysis the pile group effect should be considered for the jacket foundation.

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Section: Introductionmentioning

confidence: 99%

Soil-structure interaction on the response of jacket-type offshore wind turbine

Park

Chung

Shin

et al. 2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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“…Increasing the flexibility of WT drivetrain components in the modelling did not always result in more accurate results 6 . The pure torsional model was able to produce approximations of torsional vibrations 7 , angular velocities and accelerations 8 , torques of low speed shaft (LSS) and high speed shaft (HSS) 9 and gear meshing forces 8 . If the bearing loads were required to be modelled, the torsional model could be expanded to include the rotational and translational degrees of freedom 10 .…”

Section: System Dynamic Modellingmentioning

confidence: 99%

System dynamic modelling of three different wind turbine gearbox designs under transient loading conditions

Al-Hamadani

King

et al. 2017

Int. J. Precis. Eng. Manuf.

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Wind turbine (WT) drivetrain design configurations affect dynamic loads experienced by the drivetrain components under different operational conditions. This paper presents system modelling of dynamic loads experienced by key mechanical components within WT gearbox under different operational conditions by using MATLAB/Simulink. Two operational conditions of WTs are considered; normal operation and shutdown, using torque spectrums measured from a field operating wind turbine. The torsional dynamic loads under these conditions differ significantly; during normal operation, the maximum torque ratio is below the recommend value however it exceeds the recommended level during shutdown. It has been found that the shutdown event has a considerable effect on gear loading; it causes occurrences of loading reversal of gear meshing forces. Moreover, the variation range of meshing forces between planetary and sun gears is five to six times higher than that during normal operation. During shutdown, the most dominated vibration frequency of the WT drivetrains is the lowest one which is very close to the estimated natural frequency of the low speed shaft and that may cause the resonance of the drivetrain system.

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“…Still related to the rotor, Manyoge [12] presented a mathematical model to describe the power coefficient behavior, which is used in the present work. Peeters [16][17], Todorov [18], WeiShi [20], Datong [5], Wang [21] and Helsen [8]studied mathematical models related to the gearbox of wind turbines (the mechanical part of the power train). Regarding the generator, Marques [13], Bernardes [2], Ming Yin [14], Bastos [1] and Lei [11]studied mathematical models related to the generator.…”

Section: Figure1 Components Of a Wind Turbinementioning

confidence: 99%