Speed and Torque Control Strategies for Loss Reduction of Vertical Axis Wind Turbines

The Science of Making Torque from Wind

Argent, Michael^1 ; McDonald, Alasdair^1 ; Leithead, Bill^1 ; Giles, Alexander^1

Centre for Doctoral Training in Wind Energy Systems, Department of Electronic and Electrical Engineering, Royal College Building, 204 George Street, Glasgow

G1 1XW, United Kingdom^1

关键词: Control strategies;    Loss reduction;    Rotational speed;    Rotor speed;    Vertical axis wind turbines;    Wind turbine rotors;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/753/11/112007/pdf
DOI  :  10.1088/1742-6596/753/11/112007

来源: IOP

【 摘 要 】

This paper builds on the work into modelling the generator losses for Vertical Axis Wind Turbines from their intrinsic torque cycling to investigate the effects of aerodynamic inefficiencies caused by the varying rotational speed resulting from different torque control strategies to the cyclic torque. This is achieved by modelling the wake that builds up from the rotation of the VAWT rotor to investigate how the wake responds to a changing rotor speed and how this in turn affects the torque produced by the blades as well as the corresponding change in generator losses and any changes to the energy extracted by the wind turbine rotor.