WIND POWER GENERATOR AND METHOD FOR STOPPING SAME

Even when a low stiffness blade is adopted, collision between the blade and a tower is avoided when a wind power generation apparatus is to be stopped, while an increase in the time required for the stop is suppressed. A rotor 10 including a blade 2, a nacelle 4 that supports the rotor 10, a tower 5...

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Bibliographische Detailangaben
Hauptverfasser:	OKUNO, Azuma, NAMURA, Nobuo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PRODUCING MECHANICAL POWER WEAPONS WIND MOTORS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	Even when a low stiffness blade is adopted, collision between the blade and a tower is avoided when a wind power generation apparatus is to be stopped, while an increase in the time required for the stop is suppressed. A rotor 10 including a blade 2, a nacelle 4 that supports the rotor 10, a tower 5 that supports the nacelle 4, a pitch angle control mechanism 21 that controls a pitch angle of the blade 2, and a controller 12 that outputs a target value of the pitch angle to the pitch angle control mechanism 21 are included. When the wind power generation apparatus is to be stopped, the controller 12 determines the target value of the pitch angle in a feather operation of the blade 2 such that the blade 2 does not greatly bend toward the tower 5 in an azimuth angle range in which the blade 2 passes through the tower 5.