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US 7,400,055 B2Granted
Wind turbine generator
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorToru Nagao
Life of this patent
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Abstract
A wind turbine generator includes: a tower; a rotor supported by the tower to rotate around a rotational axis which is not parallel with an axis direction of the tower by wind power; a generator driven by a rotational force of the rotor; a sensor that detects vibration component in a direction perpendicular to the rotational axis of the rotor; and a control device that controls the rotor so that fluctuation of the rotor is caused to suppress the vibration component.
Claims20
A wind turbine generator, comprising:
- a tower;
- a rotor supported by the tower to rotate around a rotational axis which is not parallel with an axis direction of the tower, by wind power;
- a generator driven by a rotational force of the rotor;
- a sensor that detects a vibration component in a direction perpendicular to the rotational axis of the rotor;
- a control device that controls the rotor so that fluctuation of the rotor is caused to suppress the vibration component;
- and
- an analyzer that analyzes phase of the vibration component detected by the sensor,
- wherein the control device controls the rotor so that the fluctuation of the rotor is caused in opposite phase to phase analyzed by the analyzer.
5 more elements
Dependencies are inferred from the claim text.