CWD
  • Conference for Wind Power Drives 2017
    Conference for Wind Power Drives 2017
  • Aufbau FVA-Gondel
    Aufbau FVA-Gondel
  • Conference for Wind Power Drives 2017
    Conference for Wind Power Drives 2017
  • Center for Wind power drives
    Center for Wind power drives
  • Conference for Wind Power Drives 2017
    Conference for Wind Power Drives 2017
  • Aufbau FVA-Gondel
    Aufbau FVA-Gondel
  • Vorstellung des 4MW Prüfstandes
    Vorstellung des 4MW Prüfstandes
  • 4MW-Prüfstand mit HybridDrive
    4MW-Prüfstand mit HybridDrive
  • 1MW-Prüfstand
    1MW-Prüfstand
  • Campus Melaten
    Campus Melaten

Advanced drive train simulation models for wind turbines : Pitch system

Modern variable speed wind turbines have adjustable rotor blades for power control. Today, for safety reasons one pitch drive per blade is required to control them independently, so that even in cases of the loss of one pitch drive, the system can still be braked aerodynamically. This technical requirement enables a dynamical adjustment of each rotor blade to an optimal position over rotation. The potential in increasing energy efficiency at low wind speeds as well as the leveling and load reduction at high wind speeds is not fully exploited in the series today; corresponding implementations to the pitch control are currently being pursued. For then, analysis of the increasing pitch drive dynamics have to be carried out. Therefore, detailed models have to be developed and the coupled aeroelastic and torsional dynamics of the rotor blade have to be integrated into the system models. This will be important if considering the current trend of increasing rotor blade length, particularly for onshore wind turbines.

One goal of the project "Erweiterte Antriebsstrangsimulation für Windenergieanlagen”, therefore, is the improvement of existing simulation tools for the description of drive technology in wind turbines. Based on existing knowledge and embedded in current models, the development focuses on the following points:

  • Extension of the aeroelastic models and system-wide analysis of the pitch drives
  • validation of the models by measurements on a wind turbine of 2.2 MW class

The Project is funded by:

The project is carried out in cooperation with: