Application of Variable Blade Pitch Control on Improving the Performance of Vertical Axis Wind Turbine


Article Preview

A three blades vertical axis wind turbine simulation is performed to study the unsteady aerodynamic characteristics with blade pitch control. Several fixed and variable blade pitch models under different tip speed ratio are adopted to improve performance of the wind turbine. Results show that an appropriate pitch control model can effectively decrease the range of negative torque regime to reduce the vibration of the wind turbine. Besides, the average torque coefficient as well as the energy capture efficiency can be also improved, especially for the lower tip speed ratio. The overall efficiency of the wind turbines in power generation will be enhanced. For the cases under the tip speed ratio between 1 and 3, the efficiency can be enhanced 243% and 486% for fixed and variable pitch control models respectively as comparing with non-pitch control cases.



Edited by:

Mohamed Othman




J.C. Cheng et al., "Application of Variable Blade Pitch Control on Improving the Performance of Vertical Axis Wind Turbine", Applied Mechanics and Materials, Vols. 229-231, pp. 2339-2342, 2012

Online since:

November 2012




[1] S. Hwang, S. Y. Min, I. O. Jeong, Y. H. Lee and S. J. Kim: Smart Structures and Materials Conference, ETATS-UNIS, Vol. 6173 (2006), p.617311.

[2] O. Trifu Paraschivoiu and F. Saeed: H-Darrieus Wind Turbine With Blade Pitch Control, International Journal of Rotating Machinery, Vol. 2009 (2009), Article ID 505343.


[3] Oler J. W., Strickland J. H., Im B. J., Graham G. H., Dynamic Stall Regulation of the Darrieus Turbine, SAND83-7029 UC-261 (1983).


[4] Lain S. and Osorio C., Simulation and evaluation of a straight-bladed Darrieus-type cross flow marine turbine, Journal of Scientific & Industrial Research, Vol. 69 (2010) p.906.