Gearbox and Drivetrain Models to Study Dynamic Effects of Modern Wind Turbines

Wind turbine drivetrains consist of components that directly convert kinetic energy from the wind to electricalenergy. Therefore, guaranteeing robust and reliable drivetrain designs is important to prevent turbine downtime. Currentdrivetrain models often lack the ability to model both the impacts of electrical transients as well as wind turbulenceand shear in one package. In this paper, the capability of the FAST wind turbine computer-aided-engineering tool,developed by the National Renewable Energy Laboratory, is enhanced through the integration of a dynamic model of thedrivetrain. The dynamic drivetrain model is built using Simscape in the MATLAB/Simulink environment and incorporatesdetailed electrical generator models. This model can be used to evaluate internal drivetrain loads due to excitationsfrom both the wind and generator.

[1]  Svend Gade,et al.  Operational Modal Analysis on a Wind Turbine Gearbox , 2009 .

[2]  Robert G. Parker,et al.  NATURAL FREQUENCY VEERING IN PLANETARY GEARS* , 2001 .

[3]  G. Mandic,et al.  Active Torque Control for Gearbox Load Reduction in a Variable-Speed Wind Turbine , 2012, IEEE Transactions on Industry Applications.

[4]  Mohit Singh,et al.  Modeling and Control to Mitigate Resonant Load in Variable-Speed Wind Turbine Drivetrain , 2013, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[5]  Peter Tavner,et al.  Wind turbine downtime and its importance for offshore deployment. , 2011 .

[6]  F. Oyague,et al.  NREL Gearbox Reliability Collaborative Experimental Data Overview and Analysis: Preprint , 2010 .

[7]  Robert G. Parker,et al.  Analytical Characterization of the Unique Properties of Planetary Gear Free Vibration , 1999 .

[8]  F. Oyague.  Gearbox Modeling and Load Simulation of a Baseline 750-kW Wind Turbine Using State-of-the-Art Simulation Codes , 2009 .

[9]  Joris Peeters.  Simulation of Dynamic Drive Train Loads in a Windturbine (Simulatie van de dynamische belasting in de aandrijflijn van een windturbine) , 2006 .

[10]  S. Sheng,et al.  Gearbox Reliability Collaborative Analysis Round Robin: Preprint , 2009 .

[11]  Wim Desmet,et al.  Optimized inclusion of flexibility in wind turbine gearbox multibody model in view of model updating on dynamic test rig , 2010 .

[12]  Y. Guo.  Model Fidelity Study of Dynamic Transient Loads in a Wind Turbine Gearbox: Preprint , 2013 .

[13]  Wim Desmet,et al.  Multibody modelling of varying complexity for modal behaviour analysis of wind turbine gearboxes , 2010 .

[14]  Jason Jonkman,et al.  FAST User's Guide , 2005 .

[15]  Robert G. Parker,et al.  Dynamic modeling and analysis of a spur planetary gear involving tooth wedging and bearing clearance nonlinearity , 2010 .

[16]  Luis J. de Miguel,et al.  Statistical fault diagnosis based on vibration analysis for gear test-bench under non-stationary conditions of speed and load , 2012 .

[17]  Torgeir Moan,et al.  Model Fidelity Study of Dynamic Transient Loads in a Wind Turbine Gearbox: Preprint , 2013 .

[18]  Liu Hong,et al.  An explanation of frequency features enabling detection of faults in equally spaced planetary gearbox , 2014 .

[19]  Torgeir Moan,et al.  Modelling and analysis of floating spar-type wind turbine drivetrain , 2014 .

[20]  Liu Hong,et al.  A time-domain fault detection method based on an electrical machine stator current measurement for planetary gear-sets , 2013, 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics.

[21]  Mohit Singh,et al.  Simulation for Wind Turbine Generators -- With FAST and MATLAB-Simulink Modules , 2014 .

[22]  Wim Desmet,et al.  The influence of flexibility within multibody modeling of multi-megawatt wind turbine gearboxes , 2008 .

[23]  Liu Hong,et al.  A time domain approach to diagnose gearbox fault based on measured vibration signals , 2014 .

[24]  Robert G. Parker,et al.  PLANETARY GEAR PARAMETRIC INSTABILITY CAUSED BY MESH STIFFNESS VARIATION , 2002 .

[25]  Torgeir Moan,et al.  Multi‐body modelling and analysis of a planet carrier in a wind turbine gearbox , 2013 .

[26]  R. Parker,et al.  Dynamic Response of a Planetary Gear System Using a Finite Element/Contact Mechanics Model , 2000 .

[27]  P.M.S.T. de Castro,et al.  Calculation of Load Capacity of Cylindrical Gears: Review of Different Approaches and Calculation Tools , 2015 .

[28]  Liu Hong,et al.  Gear Fault Detection in Planetary Gearbox Using Stator Current Measurement of AC Motors , 2012 .

[29]  F. Oyague,et al.  NREL Gearbox Reliability Collaborative Analysis Round Robin: Preprint , 2009 .

[30]  F. Massouh,et al.  Analysis of torsional oscillation of the drive train in horizontal-axis wind turbine , 2009, 2009 8th International Symposium on Advanced Electromechanical Motion Systems & Electric Drives Joint Symposium.

[31]  Eduard Muljadi,et al.  Mechanical stress reduction in variable speed wind turbine drivetrains , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[32]  F. Oyague,et al.  Gearbox Reliability Collaborative (GRC) Description and Loading , 2011 .

[33]  Wim Desmet,et al.  Insights in wind turbine drive train dynamics gathered by validating advanced models on a newly developed 13.2 MW dynamically controlled test-rig , 2011 .

[34]  Robert G. Parker,et al.  SENSITIVITY OF PLANETARY GEAR NATURAL FREQUENCIES AND VIBRATION MODES TO MODEL PARAMETERS , 1999 .

[35]  Yi Guo,et al.  Dynamic Analysis of Wind Turbine Planetary Gears Using an Extended Harmonic Balance Approach , 2012 .