Insights in wind turbine drive train dynamics gathered by validating advanced models on a newly developed 13.2MW dynamically controlled test-rig

Helsen, Jan; Vanhollebeke, Frederik; Coninck, Filip De; Vandepitte, Dirk; Desmet, Wim

doi:10.1016/j.mechatronics.2010.11.005

Cited by 60 publications

(37 citation statements)

References 16 publications

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“…Damping was neglected in some of the existing studies as this assumption is reasonable for large wind turbines [13]. However, large influence of damping in the nonlinear behaviour was observed during wind turbine emergency stop [39,40]. What is more, it was noted that the gear backlash is minimal in wind turbine normal operation, especially for modern wind turbine gearboxes with the advanced control strategy in energy extractions.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear torsional vibrations of a wind turbine gearbox

Zhao

2015

Applied Mathematical Modelling

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a b s t r a c tThis paper studies the torsional vibrations of wind turbine gearbox having two planetary gear stages and one parallel gear stage. The nonlinear dynamic model developed considers the factors such as time-varying mesh stiffness, damping, static transmission error and gear backlash. Both the external excitation due to wind gust and the internal excitation due to static transmission error are included. With the help of time history, FFT spectrum, phase portrait, Poincare map and Lyapunov exponent, the effects of the static transmission error, mean-to-alternating force ratio and time-varying mesh stiffness on the dynamic behaviour of wind turbine gearbox components are investigated by using the numerical integration method. It is found that the external excitation has the most influence on the torsional vibrations of the wind turbine gearbox components. The mesh stiffness, being another significant factor, has more influence than the other internal excitation source, the static transmission error. The static transmission error has the least influence.

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Section: Methodsmentioning

confidence: 99%

Nonlinear torsional vibrations of a wind turbine gearbox

Zhao

2015

Applied Mathematical Modelling

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“…Damping and backlash have been neglected in some of the existing studies on the wind turbine gearboxes [27]. However, large influence of the damping and backlash in the nonlinear behavior was observed during wind turbine emergency stop [28,29]. Thus, damping and gear backlash are included in this model.…”

Section: Derivation Of Equationsmentioning

confidence: 99%

Dynamic Analysis of Wind Turbine Gearbox Components

Zhao

2016

Energies

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This paper studies the dynamic response of a wind turbine gearbox under different excitation conditions. The proposed 4 degree-of-freedom (DOF) dynamic model takes into account the key factors such as the time-varying mesh stiffness, bearing stiffness, damping, static transmission error and gear backlash. Both the external excitation due to wind and the internal excitation due to the static transmission error are included to represent the gearbox excitation conditions. With the help of the time history and frequency spectrum, the dynamic responses of wind turbine gearbox components are investigated by using the numerical integration method. This paper explains under which conditions the fretting corrosion, as one of the wind turbine gearbox failure modes, may occur. Furthermore, it is observed that the external excitation fluctuation has large influence on the dynamic responses of both the gears and bearings.

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“…Considering the base helix angle, position angle and pressure angle, the modal properties of a three dimensional helical planetary system were also investigated [6]. The lumped torsional vibration model, rigid-flexible coupled multibody vibration model and flexible multibody vibration model were built for wind turbine gear transmission system, and the modal and dynamic characteristics were investigated by Helsen et al [7,8]. Zhu et al investigated the influence of the flexible pin on the mode characteristics of the planetary system and the dynamic responses of wind turbine gearbox [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Dynamic modeling and analysis for transmission system of high-power wind turbine gearbox

et al. 2015

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As a key component to adjust the speed and torque, double-fed speed up gearbox plays a vital role in reliability and stability for the wind turbine system. Considering the base helix angle, normal pressure angle, position angle, rotation of carrier and the mesh of the ring gear and planet gear, a coupled dynamic model for high-power wind turbine gearbox transmission system, which consists of two helical planetary stages and one helical gear stage was established using the lumped parameter method in this paper. Numerical integration applying the explicit 4/5th order Runge-Kutta algorithm was used to solve the proposed model and the dynamic responses of transmission system were investigated. Results show that the modal frequencies for the system are not coincided with the gear mesh frequencies of the stages. Then, the dynamic mesh forces of the 1 st stage in different models are compared and analyzed in frequency domain.

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Insights in wind turbine drive train dynamics gathered by validating advanced models on a newly developed 13.2MW dynamically controlled test-rig

Cited by 60 publications

References 16 publications

Nonlinear torsional vibrations of a wind turbine gearbox

Nonlinear torsional vibrations of a wind turbine gearbox

Dynamic Analysis of Wind Turbine Gearbox Components

Dynamic modeling and analysis for transmission system of high-power wind turbine gearbox

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