Elimination of disturbances due to changes in air flow in a wind turbine with hydrostatic transmission

Hydrostatic power transmission between the rotor of a wind turbine and generator, which can be placed on ground, is way to reduce cost installing turbine, reducing mass at height. The article shows ability hydrostatic cope with disturbance due change in air flow that drives rotor. When increasing flow, would normally lead an increase drive speed electric by adjusting geometric volume hydraulic pump connected PID regulator, generator kept constant. load also simulated hydraulically.