Strong stabilisation of a wind turbine tower model in the plane of the turbine blades

Abstract

We investigate the strong stabilisation of a wind turbine tower model in the plane of the turbine blades, which comprises a nonuniform NASA Spacecraft Control Laboratory Experiment (SCOLE) system and a two-mass drive-train model (with gearbox). The control input is the torque created by the electrical generator. Using a strong stabilisation theorem for a class of impedance passive linear systems with bounded control and observation operators, we show that the wind turbine tower model can be strongly stabilised. The control is by static output feedback from the angular velocities of the nacelle and the generator rotor.

Keywords:

• wind turbine tower
• SCOLE model
• two-mass drive-train model
• impedance passive system
• strong stabilisation

Additional information

Funding

This work was partially supported by the Israel Science Foundation [grant number 701/10].