Mitsubishi Heavy Industries Limited

Ryoichi Haga

Ryuji Takenaka

Keisuke Yamamoto

Shinichi Yoshioka

Takashi Sonoda

Akihiko Saito

Yoshifumi Iwasaki

Fuminori Fujii

Wataru Akizuki

Hisashi Nakahara

Isamu Matsumi

Naohiro Sumimura

Makoto Kishi

Fumikatsu Inoue

Tsukasa Ito

Kenta Wada

Yutaro Fujioka

Takahiro Ito

Yasuhiro Niina

A fuel control device includes a combustion temperature estimation value calculation unit that calculates a temperature estimation value when a mixture of fuel and inflow air is burned using an atmospheric condition, an opening degree command value of a valve that controls the amount of air that is mixed with the fuel and burned, and an output prediction value calculated on the basis of a fuel control signal command value used for calculation of a total fuel flow rate flowing through a plurality of fuel supply systems, a fuel distribution command value calculation unit that calculates a fuel distribution command value indicating a distribution of fuel output from the fuel supply systems based on the temperature estimation value, and outputs the fuel distribution command value, and a valve opening degree calculation unit that calculates each valve opening degree of a fuel flow rate control valve of the fuel supply systems.

Fuel control device, combustor, gas turbine, control method, and non-transitory computer-readable medium

This combustion adjustment method applied to the combustion control of a combustor executes a first step for selecting a combustion parameter for a load of a gas turbine and increasing or decreasing a command value of the combustion parameter from an original location. When the command value reaches a target tolerance upper limit value or a target tolerance lower limit value, the first step is terminated. Furthermore, a second step for decreasing or increasing the command value in a direction opposite to that of the first step is executed. When the command value reaches the target tolerance upper limit value or the target tolerance lower limit value, the present invention includes a combustion tolerance confirmation step for confirming a combustion tolerance range of the combustion parameter at which the second step is terminated.

Combustion adjustment method and combustion control device of gas turbine

A control device is a device for controlling a gas turbine. The control device is provided with: a prediction unit configured to predict a future state quantity of the gas turbine corresponding to a control input to the gas turbine in a prediction horizon, using a prediction model; an optimization unit configured to optimize the control input in at least a part of the prediction horizon, using a prediction result of the prediction unit; a storage unit for storing sensitivity information indicating sensitivity of the control input to a change speed of the state quantity for each operating condition of the gas turbine; and an update unit configured to read the sensitivity information corresponding to the operating condition assumed in the prediction horizon from the storage unit, and update one or more coefficients of a prediction equation of the state quantity used in the prediction model.

Control device, control input determination method, and control input determination program

Fuel control device, combustor, gas turbine, control method, and program

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Kanagawa, Japan

Ryoichi Haga