Description of Invention

Wind turbines blades are set in motion due to pressure differences when the wind hits the blades. The blades turning motion will drive the generator to produce electricity based on the electromagnetic induction concept. Wind turbine rotor can be broadly classified into two categories: Horizontal-Axis Wind Turbines (HAWTs) of which its rotational axis is aligned in parallel to the ground. and Vertical-Axis Wind Turbines (VAWTs) of wli1c its rotating axis is perpendicularly to the ground. Wind turbine can also be classified as aerodynamic lift type or drag type. Low speed devices such as Savonius rotor are mainly driven by the drag forces acting on the rotor with relatively high torque. Their blade rotations are relatively easy to start, even with low wind speed, but with low power generating efficiency. High speed turbines such as Darrieus rotor rely on lift forces to move the blades, which improve the power generating efficiency. However, due to low rotating moment of the blades, it finds itself difficult to start the blades rotation from stationary condition.

Intellectual Property (IP) Status

• Patent Filed