Abstract
Linear wind generator (LWG) is a sufficient way of wind energy harnessing process. However, complicated LWG energy extraction mechanism such as complex system for transferring linear motion to rotational motion and problems related to changing the angle of attack is resulted to energy dissipation. In the other hand the linear generator that delivers ocean wave energy to electricity has been developed as a new renewable energy extraction method. Some of the problems associated with this technology are corrosion, high cost of manufacturing, high requirement for installation and construction, economical consideration, etc. In the most recent works, low dissipation energy in mechanism, low cost, simplicity and high performance are highly regarded as environmentally friendly methods for wind energy extraction mechanisms. In the current study, we would like to introduce a new and efficient method to extract wind energy using airfoil linear wind generator(ALWG). ALWG is a new method that produces liner reciprocating motion via attached airfoils to a mover in a magnetic field in order to generate electricity. The most important advantage of ALWG is its simplicity and its compatibility to all wind situations that can be more controllable relative to ocean-based and also relative to LWG that become challengeable problem.
Highlights
An urgent and strategic issue of our society is the solution of the atmosphere pollution problems which posed by electric energy generation from fossil flues as nonrenewable sources [1]
Based on aerodynamic forces exerts on airfoil by air current. In this method we used from linear generator instead of rotary generator
ALWG has introduced in order to eliminate some of the problems associated with the previous extractor systems such as Linear wind generator (LWG) and ocean-based systems
Summary
An urgent and strategic issue of our society is the solution of the atmosphere pollution problems which posed by electric energy generation from fossil flues as nonrenewable sources [1]. Taking into account the fact that airfoil is on a beam, a reciprocating motion will be produce in perpendicular direction relative to wind Considering this issue that radial and axial force occur in the linear generator (between rotor and stator, this force is due to the geometrical magnetic anisotropy of the generator), the existence of flywheel is necessary in order to maintain continues motion and homogenize anisotropy forces [13]. In the second cycle (operation of flywheel), the changer of angle of attack mechanism can deplete it to minimum level This action decrease the lift force on the airfoil to zero as it reaches to minimum length relative to generator. An AC motion-induced voltage is produced in the stator coil as a result of up-and-down oscillatory motion of the mover
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