Kohana Technologies Inc. and Vestas
Kohana Technologies Inc. has developed an active aerodynamic control system for wind turbines. This system provides the ability to locally affect the aerodynamics on the blade (increasing drag and reducing lift) through separation, by ejecting air along the suction side of the blade towards the leading edge. This new control methodology, known as ‘Blown Wing Technology’, provides an ability to control the generator speed in full load conditions without affecting wear on the current pitch system.
Our team worked with Kohana and Vestas to integrate their design into a Vestas V110 2MW model, quantifying the impact on the relevant IEC 61400 load cases.