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Patent Searching and Data


Title:
WIND POWER GENERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/078011
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a wind power generation device in which an anomaly in a yaw drive device is prevented. The wind power generation device is characterized by comprising: a rotor which rotates in the wind; a nacelle which supports the rotor rotatably; a tower which supports the nacelle rotatably; a yaw drive device which causes the nacelle to rotate with respect to the tower; a yaw control device which controls the yaw drive device; a yaw drive device rotation speed calculation means which calculates the rotation speed of a rotating shaft in the yaw drive device in a free-yaw state; and a diagnosis means which diagnoses the yaw drive device by means of the rotation speed.

Inventors:
OYAMADA TOMONAGA (JP)
Application Number:
PCT/JP2018/037156
Publication Date:
April 25, 2019
Filing Date:
October 04, 2018
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
F03D17/00; F03D1/06; F03D7/04; F03D80/70; G01M13/02; G01M13/04; G01M99/00
Foreign References:
JP2017025881A2017-02-02
JP2011190844A2011-09-29
JP2013181412A2013-09-12
Attorney, Agent or Firm:
TODA Yuji (JP)
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