Wind energy conversion system

F - Mech Eng,Light,Heat,Weapons – 03 – D

Patent

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F03D 3/02 (2006.01) F03D 3/04 (2006.01) F03D 11/02 (2006.01) F03D 11/04 (2006.01) H02K 7/18 (2006.01)

Patent

CA 2556490

A wind energy conversion system includes upper and lower wind turbines having counter-rotating blade assemblies supported for rotation about a vertical rotation axis, with each blade assembly carrying a rotor for rotation past a stator to produce an electrical output. The wind turbines are supported by a tower at an elevated position above the ground. Each wind turbine produces torque, and the wind energy conversion system provides for balancing the torques to avoid a net torque on the tower. Adjustment mechanisms are provided for adjusting blade pitch and for adjusting the size of an air gap between a stator and a rotor that comes into alignment with the stator as the rotor rotates therepast. The wind energy conversion system provides a hood for supplying intake air to a wind turbine and an exhaust plenum for exhausting air from the wind turbine, with the hood and the exhaust plenum being directionally positionable.

Un système de conversion de l~énergie éolienne comprend des éoliennes supérieures et inférieures possédant des assemblages de pales contrarotatives supportés pendant la rotation autour d~un axe de rotation vertical, dans lequel chaque assemblage de pales possède un rotor pour la rotation devant un stator afin de produire une puissance électrique. Les éoliennes sont supportées par une tour sur un emplacement élevé au dessus du sol. Chaque éolienne produit un couple, et le système de conversion de l~énergie éolienne permet un équilibrage des couples afin d~éviter un couple de réseau sur la tour. Des mécanismes de réglage sont fournis afin de régler le pas de pales et la taille de l~entrefer entre un stator et un rotor qui s~aligne sur le stator quand le rotor est en rotation devant lui. Le système de conversion de l~énergie éolienne dispose d~un capot afin de fournir de l~air entrant à une éolienne et un plénum d~échappement, le capot et le plénum d~échappement étant directement orientables.

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