On a conceptual method for the extraction of wind energy using airfoil and linear generator

Abstract

In this paper, a new conceptual method is introduced in order to extract wind energy using a set of airfoils and a linear generator. Indeed, the idea of this method is inspired by the ocean wave energy extractor and the linear wind generator. In this method, under wind velocity, a mover connected to the airfoils undergoes a linear reciprocating motion such that this motion is converted to electricity using the magnetic field of a linear generator. Moreover, the structure and mechanism of the proposed method are illustrated. Based on this illustration, a perfect kinematic and kinetic analysis of the mechanism, including the displacement, velocity, acceleration, force, and mechanical powers, is done. Finally, the average generative power based on the proposed method is investigated under different conditions and compared with the output power of the ocean energy extractors in similar situations. The most important advantage of the proposed method in comparison with the two mentioned methods is its simplicity, high efficiency, and compatibility with all wind situations.