Mitsubishi Power, Ltd.

Mitsubishi Heavy Industries Limited

Koji Imakita

Toru Tanaka

Akihisa Endo

Toshihiko Niinomi

Takahiro Yamauchi

Masato Shida

Hiroyasu Ishigaki

Yoshiyuki Nagata

Ikuyo Abe

Provided is an upgrade evaluation device for calculating cost in relation to the introduction effects of an upgrade menu. The present invention has: a performance data acquisition step for acquiring the performance data of an apparatus; and an effect calculation step for calculating, on the basis of the performance data, introduction effects based on a difference in performance when an improvement function for improving the performance of the apparatus is introduced and when the improvement function is not introduced; the introduction effects being calculated for each of a plurality of points in time in a prescribed period in the effect calculation step. There may also be calculated a cost exchanged between an improvement-function-supply side and the supplied side, the cost being based on the introduction effects calculated in the effect calculation step.

Upgrade evaluation method and upgrade evaluation device

A state display deviceincludes a display devicefor displaying a temporal change of a first parameter representing an operation state of a thermal power generation facilityand a correlation between the first parameter and a second parameter representing an operation state of the thermal power generation facilityan input devicefor respectively selecting and inputting a first period tand a second period tdifferent from the first period tin the temporal change of the first parameter, and a processing deviceThe processing deviceis configured to display the temporal change of the first parameter on the display deviceand to display, on the display devicethe correlation between the first parameter and the second parameter in each of the first period tand the second period tinput via the input device

State display device for plant and state display method for plant

A notification device is provided with: an abnormality estimation unit for estimating a state relating to an abnormality of a plant and a factor relating to the abnormality of the plant; an item specifying unit for specifying inspection items on the basis of the abnormality of the plant and the state relating to the factor relating to the abnormality of the plant estimated by the abnormality estimation unit; a notification unit for notifying of the inspection items specified by the item specifying unit; a stop-time item specifying unit for specifying the inspection items which should be checked at a time of a stop out of the inspection items specified by the item specifying unit; a check result acquisition unit for receiving a check result for the inspection items notified of by the notification unit; and a stop-time item output unit for outputting the inspection items which should be checked at the time of stop.

Notification device, notification method, and program

A control switching device including an operation input part configured to receive a switching operation as to whether to use a second control execution part configured to carry out different control over a control object than a first control execution part for controlling the control object, and a control switching part to transition to a second control mode causing the second control execution part to control the control object according to an operation indicating use of the second control execution part to stop control of the first control execution part while having the second control execution part control the control object or to have the first control execution part and the second control execution part control the control object, or to transition to a first control mode causing the first control execution part to control the control object according to an operation indicating disuse of the second control execution part.

Control switching device, plant, control switching method and program

Provided is a service menu presentation system which: acquires operation data relating to an electric power generation plant; decides which operation pattern, from among a plurality of operation patterns set in advance in accordance with an output mode, is the basis for the operation being indicated by the operation data; calculates, on the basis of the operation data acquired in a certain period, an operation time with respect to each of the operation patterns in the period; determines, on the basis of an operation time ratio in the certain period, an in-period operation pattern of the certain period; and outputs a service menu corresponding to the in-period operation pattern that has been determined.

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Yokohama, Japan

Koji Imakita