US 2022/0187805 A1Published application

Plant operating condition determination device, plant control system, operating condition determination method and program

AssigneeMitsubishi Power, Ltd.

InventorsYusuke HAZUI, Masumi NOMURA, Shigeru ANO, Kenta WADA, Koshiro FUKUMOTO

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Abstract

It is judged whether a first predicted value of an operation index obtained by inputting a scheduled change value of a manipulation parameter of a plant meets an operation criterion, and whether a second predicted value of the operation index obtained by inputting a virtual change value with a greater change amount from a current value than the scheduled change value to a prediction model meets the operation criterion. If it is judged that the first predicted value and the second predicted value meet the operation criterion, the scheduled change value is output as a command value of the manipulation parameter.

Claims16

Dependent claims

A plant operating condition determination device, comprising:

a first judgement unit configured to judge whether a first predicted value of an operation index meets an operation criterion of a plant, the first predicted value being obtained by inputting a scheduled change value of one or more manipulation parameters to a prediction model showing a correlation between the operation index of the plant and an explanatory variable including a plurality of manipulation parameters of the plant;
a second judgement unit configured to judge whether a second predicted value of the operation index meets the operation criterion of the plant, the second predicted value being obtained by inputting a virtual change value of the one or more manipulation parameters to the prediction model, wherein a change amount of the virtual change value from a current value of the one or more manipulation parameters is greater than that of the scheduled change value;
and
a manipulated variable change unit configured to output the scheduled change value as a command value of the one or more manipulation parameters if the first judgement unit and the second judgement unit judge that the first predicted value and the second predicted value meet the operation criterion.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/442,849Filed 24 Mar 2020
Priority: JP 2019-08273424 Apr 2019
Published: 16 Jun 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

G05B 13/048
Involving the use of models or simulators: using a predictor
G05B 19/41865
Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible…:…
G05B 19/4188
Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible…:…
G05B 19/41885
Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible…:…