PLANT MONITORING DEVICE, PLANT MONITORING METHOD, AND PROGRAM

WIPO Patent Application WO/2021/020170

A1

A plant monitoring device (20) is provided with: a state quantity acquiring unit (211) which acquires state quantities for each of a plurality of characteristic items relating to a plant; an abnormality degree calculating unit (212) which calculates a degree of abnormality representing a degree of approach toward an abnormal side relative to a limit value that is predetermined for each characteristic item, for the state quantities acquired at a plant monitoring timing; a distance calculating unit (313) which uses a statistical technique to calculate distances representing the degrees of separation, from the normal operating state of the plant, of the state quantity and the degree of abnormality acquired at the monitoring timing; and a determining unit (214) which determines the operating state of the plant on the basis of the calculated distances.

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NAGANO ICHIRO (JP)
SAITO MAYUMI (JP)
EGUCHI KEIJI (JP)
AOYAMA KUNIAKI (JP)

PCT/JP2020/027840

February 04, 2021

July 17, 2020

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MITSUBISHI POWER LTD (JP)

F01D25/00; G05B23/02; F02C7/00

JP2019113964A	2019-07-11
JP2018081523A	2018-05-24
JP2011238148A	2011-11-24
JP2018173948A	2018-11-08
US20160012651A1	2016-01-14

MATSUNUMA Yasushi et al. (JP)

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