| 摘要 |
PROBLEM TO BE SOLVED: To reduce vibration and noise, to upsize a wind turbine, and to eliminate danger of tower collapse, without requiring to equip a high tower, by installing a central part of a generator on the ground, by dispensing with a yaw system by utilizing a vertical axis wind turbine. SOLUTION: This wind turbine generator can be enlarged without requiring the tower, by installing the generator on the ground, by reducing the noise and an energy loss by omitting a speed increasing gear by coping by a multipolar generator, without requiring the yaw system due to the vertical axis wind turbine, and can provide relatively high speed rotation by counter-rotating blades, and can highly efficiently generate electric power by directly coupling a stator 3 and a rotor 13 of the multipolar generator with the respective rotary blades, and can provide a high peripheral speed by upsizing the wind turbine, and can inexpensively and highly efficiently generate the electric power. COPYRIGHT: (C)2008,JPO&INPIT
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