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Analysis of dynamic interactions between different drivetrain components with a detailed wind turbine model

: Bartschat, A.; Morisse, M.; Mertens, A.; Wenske, J.


TU München; European Academy of Wind Energy -EAWE-:
6th International Conference "The Science of Making Torque from Wind", TORQUE 2016 : 5-7 October 2016, Munich, Germany; Proceedings
Bristol: IOP Publishing, 2016 (Journal of physics. Conference series 753)
Art. 082022, 12 pp.
International Conference "The Science of Making Torque from Wind" (TORQUE) <6, 2016, Munich>
Conference Paper
Fraunhofer IWES ()
wind turbine; drive train; modelling; simulation; power converter; interaction

The presented work describes a detailed analysis of the dynamic interactions among mechanical and electrical drivetrain components of a modern wind turbine under the influence of parameter variations, different control mechanisms and transient excitations. For this study, a detailed model of a 2MW wind turbine with a gearbox, a permanent magnet synchronous generator and a full power converter has been developed which considers all relevant characteristics of the mechanical and electrical subsystems. This model includes an accurate representation of the aerodynamics and the mechanical properties of the rotor and the complete mechanical drivetrain. Furthermore, a detailed electrical modelling of the generator, the full scale power converter with discrete switching devices, its filters, the transformer and the grid as well as the control structure is considered. The analysis shows that, considering control measures based on active torsional damping, interactions between mechanical and electrical subsystems can significantly affect the loads and thus the individual lifetime of the components.