Wind power generator
AssigneeHitachi, Ltd.
InventorsTakeshi Iwata, Norihito Yanagita, Tatsuro Kato
Life of this patent
Estimating the term…
Abstract
In a wind power generator, a nacelle is located on an upper portion of a support rod, a rotor head having wind turbine blades fitted thereto is rotatably supported to a front end side of the nacelle, and a main shaft rotating integrally with the rotor head, a gear box coupled with the main shaft which rotates while the wind turbine blades receive a wind power, a power generator having a rotor driven by a shaft output of the gear box, a brush, and a slip ring, and a humidity management device controlling humidity inside of the power generator having the brush and the slip ring, are installed in an interior of the nacelle.
Claims11
A wind power generator,
- wherein a nacelle is located on an upper portion of a support rod, a rotor head having wind turbine blades fitted thereto is rotatable supported to a front end side of the nacelle, and a main shaft that rotates integrally with the rotor head, a gear box that is coupled with the main shaft which rotates while the wind turbine blades receive a wind power, a power generator having a rotor driven by a shaft output of the gear box, a brush, and a slip ring, and a humidity management device that controls humidity inside of the power generator having the brush and the slip ring, are installed in an interior of the nacelle,
- wherein the humidity management device includes
- a humidity sensor that measures the humidity inside of the power generator having the brush and the slip ring;
- a humidifier that compares a humidity value inside of the power generator having the brush and the slip ring, which is measured by the humidity sensor, with an optimum humidity value inside of the power generator having the brush and the slip ring, which is set in advance, and humidifies the interior of the power generator when the compared humidity value is equal to or lower than the set value;
- and
- a dehumidifier that dehumidifies the interior of the power generator when the compared humidity value is larger than the set value.
A wind power generator,
- wherein a nacelle is located on an upper portion of a support rod, a rotor head having wind turbine blades fitted thereto is rotatable supported to a front end side of the nacelle, and a main shaft that rotates integrally with the rotor head, a gear box that is coupled with the main shaft which rotates while the wind turbine blades receive a wind power, a power generator having a rotor driven by a shaft output of the gear box, a brush, and a slip ring, and a humidity management device that controls humidity inside of the power generator having the brush and the slip ring, are installed in an interior of the nacelle, and
- wherein the humidity management device is disposed inside of the power generator having the brush and the slip ring, and includes a humidity adjustment sheet that adsorbs moisture if the humidity inside of the power generator is high, and releases the moisture if the humidity is low.
Dependencies are inferred from the claim text.