Title:
WIND TURBINE DIAGNOSTIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/151237
Kind Code:
A1
Abstract:
The present invention provides a wind turbine diagnostic device which performs pre-processing for comparing diagnostic data of a subject with data obtained under another operation mode before the diagnostic data are compared to normal data, thereby decreasing influences on diagnostic accuracy caused by environmental and individual differences. In the present invention, the wind turbine diagnostic device has a learning value memory unit for storing learning values and a diagnosis unit for diagnosing whether a wind turbine is abnormal from the learning values and a first measured value, said wind turbine diagnostic device being characterized in that: the device has a class classification unit for determining a class to which the first measured value belongs and a difference calculation unit for calculating a difference between the first measured value and a second measured value; and the diagnosis unit diagnoses a wind turbine abnormality from the calculation results of the difference calculation unit and learning values belonging to the same class as the first measured value.
Inventors:
SAEKI TAKASHI (JP)
YUDA SHINYA (JP)
YUDA SHINYA (JP)
Application Number:
PCT/JP2014/059704
Publication Date:
October 08, 2015
Filing Date:
April 02, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
F03D11/00; G05B23/02
Foreign References:
| JP2013222423A | 2013-10-28 | |||
| JP2012022362A | 2012-02-02 | |||
| JP5101396B2 | 2012-12-19 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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