Active tower damping and pitch balancing _ design, simulation and field test

The Science of Making Torque from Wind 2012

Duckwitz, Daniel^1 ; Shan, Martin^1

Department Control Engineering, Fraunhofer IWES Energy System Technology, Königstor 59, Kassel

34119, Germany^1

关键词: Aerodynamic asymmetry;    Control schemes;    Cost of energies;    Fatigue loads;    Load components;    Load reduction;    Load situation;    Pitch balancing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/555/1/012030/pdf
DOI  :  10.1088/1742-6596/555/1/012030

来源: IOP

【 摘 要 】

The tower is one of the major components in wind turbines with a contribution to the cost of energy of 8 to 12% [1]. In this overview the load situation of the tower will be described in terms of sources of loads, load components and fatigue contribution. Then two load reduction control schemes are described along with simulation and field test results. Pitch Balancing is described as a method to reduce aerodynamic asymmetry and the resulting fatigue loads. Active Tower Damping is reducing the tower oscillations by applying appropiate pitch angle changes. A field test was conducted on an Areva M5000 wind turbine.