Analysis of Dynamic Interactions between Different Drivetrain Components with a Detailed Wind Turbine Model

The Science of Making Torque from Wind

Bartschat, A.^1 ; Morisse, M.^2 ; Mertens, A.^2 ; Wenske, J.^1

Fraunhofer Institute for Wind Energy and Energy System Technology, IWES, Hannover, Germany^1

Institute for Drive Systems and Power Electronics, Leibniz Universitat Hannover, Hannover, Germany^2

关键词: Control mechanism;    Drive-train components;    Dynamic interaction;    Full power converter;    Mechanical and electrical;    Permanent magnet synchronous generator;    Transient excitation;    Wind turbine modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/8/082022/pdf
DOI  :  10.1088/1742-6596/753/8/082022

来源: IOP

【 摘 要 】

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.