Title:
PLANT MONITORING DEVICE, PLANT MONITORING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/195978
Kind Code:
A1
Abstract:
A plant monitoring device (20) is provided with: a detection value acquisition unit (211) that acquires a bundle of detection values; a first Mahalanobis distance calculation unit (212) that calculates a first Mahalanobis distance; a plant state determination unit (213) that determines whether the operation state of a plant is normal or abnormal; a cause detection value estimation unit (214) that estimates a cause detection value which represents a cause of the abnormality of the plant; a second Mahalanobis distance calculation unit (215) that calculates a second Mahalanobis distance by increasing or decreasing the detection value estimated as the cause detection value; and an identification unit (216) that identifies whether the abnormality can be relieved by increasing or decreasing the detection value estimated as the cause detection value.
Inventors:
NAGANO ICHIRO (JP)
SAITO MAYUMI (JP)
EGUCHI KEIJI (JP)
AOYAMA KUNIAKI (JP)
SAITO MAYUMI (JP)
EGUCHI KEIJI (JP)
AOYAMA KUNIAKI (JP)
Application Number:
PCT/JP2020/011224
Publication Date:
October 01, 2020
Filing Date:
March 13, 2020
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
G05B23/02; F01D25/00; F02C7/00; G21C17/00
Foreign References:
| JP2017215864A | 2017-12-07 | |||
| JPH08313685A | 1996-11-29 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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