US 12,404,814 B2
Gas turbine control device, gas turbine control method, and program
Kazushige Takaki, Tokyo (JP); Ryuji Takenaka, Tokyo (JP); Koshiro Fukumoto, Tokyo (JP); Shuhei Toda, Tokyo (JP); and Nobuaki Hayashida, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 18/833,102
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Apr. 24, 2023, PCT No. PCT/JP2023/016133
§ 371(c)(1), (2) Date Jul. 25, 2024,
PCT Pub. No. WO2023/218930, PCT Pub. Date Nov. 16, 2023.
Claims priority of application No. 2022-076848 (JP), filed on May 9, 2022.
Prior Publication US 2025/0154907 A1, May 15, 2025
Int. Cl. F02C 9/50 (2006.01); F01D 21/00 (2006.01); F02C 9/28 (2006.01)
CPC F02C 9/50 (2013.01) [F01D 21/003 (2013.01); F02C 9/28 (2013.01); F05D 2260/821 (2013.01); F05D 2270/303 (2013.01); F05D 2270/306 (2013.01); F05D 2270/71 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A gas turbine control device comprising:
a fuel flow rate calculation unit that calculates a fuel flow rate indicating the amount of a fuel flowing into a combustor of a gas turbine, based on measurement data relating to a fuel supply system for supplying the fuel to the combustor;
an air flow rate calculation unit that calculates an air flow rate indicating the amount of air suctioned by a compressor of the gas turbine, based on measurement data relating to the compressor;
a turbine inlet temperature calculation unit that calculates a turbine inlet temperature, based on the fuel flow rate, the air flow rate, and a physical model equation relating to heat energy balance relating to the combustor;
a heat balance computation unit that performs a computation for satisfying heat balance of the gas turbine, based on measurement data relating to energy balance of the gas turbine, and outputs a computation result;
a state detection unit that detects a state of the gas turbine; and
a correction process unit that corrects any one or both of the fuel flow rate and the air flow rate, based on the computation result output by the heat balance computation unit when the state of the gas turbine which is detected by the state detection unit is a static state, and provides the corrected flow rate to the turbine inlet temperature calculation unit,
wherein the gas turbine control device controls a flow control valve of the fuel supply system based on the turbine inlet temperature calculated by the turbine inlet temperature calculation unit.