| 摘要 |
A wind power generating system applying a jet-wheel vertical axis turbine is provided to improve efficiency by converting dynamic pressure of a high speed jet into static pressure. A wind power generating system comprises a plurality of turbines, a generator(45), an impeller(10), IGV(Inlet Guide Vanes)(20,21), a tail blade unit(50), a gear unit(44), a speed sensor(23), and a control unit(70). The impeller is passing through an upper plate, a lower plate and a plurality of circular blades(11). The IGV is fixed to a frame(12) which is connected by an additional bearing of an impeller shaft. The IGV accelerates wind speed of the blade, and converts wind speed into static pressure to generate torque. The gear unit is located between the impeller shaft and the generator, and drives the impeller to keep vane rotation speed ratio. The differential pressure is inputted from a pitot tube or the speed sensor to the control unit. The control unit keep vane rotation speed ratio regularly by controlling a rotary shaft of the IGV using a step motor to give incidence angle between IGV, when controlling jet speed.
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