WIND TURBINE GENERATOR

Provided is a wind turbine generator including an electric pitch-control device that efficiently utilizes the entire circumferential teeth of a ring gear (11) of a wind turbine blade so as to eliminate the need for work at high elevation using a crane or the like even when the teeth of the ring gear...

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Bibliographische Detailangaben
Hauptverfasser:	SEKI, SEITA, KAWAI, MASAHIRO, OBASE, YASUHIRO, KARSTENS, HAUKE
Format:	Patent
Sprache:	eng ; fre
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:	Provided is a wind turbine generator including an electric pitch-control device that efficiently utilizes the entire circumferential teeth of a ring gear (11) of a wind turbine blade so as to eliminate the need for work at high elevation using a crane or the like even when the teeth of the ring gear (11) are partly broken. A wind turbine generator having an electric pitch-control device that performs pitch-angle control by using a motor to drive a pinion gear (12) that meshes with a ring gear (11) of a wind turbine blade includes a plurality of pinion-driving-mechanism securing supporters (20) or a fixing/releasing switching part (30) as a meshing-region changing mechanism that changes a pitch-angle-control meshing region of the ring gear (11) that meshes with the pinion gear (12) during the pitch-angle control.