Title:
PLANT OPERATION ASSISTANCE DEVICE AND OPERATION ASSISTANCE METHOD
Document Type and Number:
WIPO Patent Application WO/2019/082491
Kind Code:
A1
Abstract:
The purpose of the present invention is to quickly stop a plant when an abnormality occurs so as to avoid an increase in damage cost due to propagation of the abnormality. An operation assistance device 200 comprises: a diagnosis means 500 for diagnosing an operation state of a plant 100 on the basis of operation data 3; an abnormality propagation prediction means 600 for predicting, on the basis of the diagnosis results obtained by the diagnosis means 500 and by using a physical model, the devices to which the abnormality will propagate and the time thereof; a cost calculation means 700 for predicting, on the basis of the results of the abnormality propagation prediction means 600, the change over time of the damage cost; and a plant stop determination means 800 for generating a signal that stops the plant 100 if the damage cost is equal to or greater than a predetermined damage cost of suddenly stopping the plant 100.
Inventors:
SEKIAI TAKAAKI (JP)
TANNO MITSUHIRO (JP)
KUROHA YOSHIYUKI (JP)
TANNO MITSUHIRO (JP)
KUROHA YOSHIYUKI (JP)
Application Number:
PCT/JP2018/031088
Publication Date:
May 02, 2019
Filing Date:
August 23, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G05B23/02
Domestic Patent References:
| WO2009144780A1 | 2009-12-03 |
Foreign References:
| JPH08313685A | 1996-11-29 | |||
| JPS59214915A | 1984-12-04 | |||
| JP2017162327A | 2017-09-14 | |||
| JP2010237893A | 2010-10-21 | |||
| JP2004094631A | 2004-03-25 | |||
| JP2015007509A | 2015-01-15 |
Other References:
See also references of EP 3702861A4
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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