# US 10,309,320 B2 · Method for regulating a gas turbine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,320 B2 - Document ID: US10309320B2 - Status: Granted - Kind: B2 - Application number: 15/111,477 - Filed: 2015-01-14 - Published: 2016-11-17 - Granted: 2019-06-04 - Earliest claimed: 2014-01-22 - Assignees: Siemens Aktiengesellschaft - Applicants: Siemens Aktiengesellschaft - Inventors: Marco Larson; Nicolas Savilius - Web page: https://patentgrep.com/patent/US10309320B2 ## CPC - F02C 9/28: Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed (F02C9/30 - F02C9/38, F02C9/44 take precedence) - F02C 3/04: having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16) - F02C 9/26: Control of fuel supply (F02C9/48 takes precedence; fuel valves F02C7/232) - F05D 2220/32: in gas turbines - F05D 2270/10: to cope with, or avoid, compressor flow instabilities - F05D 2270/14: to control thermoacoustic behaviour in the combustion chambers - F05D 2270/301: Pressure - F05D 2270/44: active, predictive, or anticipative - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A method for regulating a gas turbine wherein the fuel quantity supplied to the burners of the gas turbine is regulated using a target value for the corrected turbine outlet temperature. A stable operation of the gas turbine is to be allowed with a particularly high degree of efficiency and a high output at the same time. The target value for the corrected turbine outlet temperature is set using a value which characterizes the combustion stability in the burners, wherein the target value for the corrected turbine outlet temperature is set additionally using the surrounding temperature. Furthermore, the target value for the corrected turbine outlet temperature is set only below a specified surrounding temperature using the value which characterizes the combustion stability in the burners. ## Claims ### Claim 1 A method for regulating a gas turbine, the method comprising: determining a corrected turbine outlet temperature as a function of a measured ambient temperature, determining, only when the measured ambient temperature is less than a predefined ambient temperature, a target temperature for the corrected turbine outlet temperature by using a value which is characteristic of the combustion stability in burners of the gas turbine and the measured ambient temperature; and regulating a fuel quantity supplied to the burners of the gas turbine based on the target temperature, wherein when the corrected turbine outlet temperature is less than the target temperature, increasing the fuel quantity supplied to the burners of the gas turbine, wherein when the corrected turbine outlet temperature is greater than the target temperature, decreasing the fuel quantity supplied to the burners of the gas turbine. ### Claim 2 (depends on 1) The method as claimed in claim 1, wherein a thermal-acoustic variable is used during the determination of the value which is characteristic of the combustion stability in the burners of the gas turbine. ### Claim 3 (depends on 1) The method as claimed in claim 1, wherein an acceleration and/or an alternating pressure amplitude are used during the determination of the value which is characteristic of the combustion stability in the burners of the gas turbine. ### Claim 4 (depends on 1) The method as claimed in claim 1, wherein a limiting value for the value which is characteristic of the combustion stability in the burners of the gas turbine is predefined, and the target temperature for the corrected turbine outlet temperature is lowered when the limiting value is undershot. ### Claim 5 (depends on 1) The method as claimed in claim 1, wherein the target temperature for the corrected turbine outlet temperature is determined in a partial load mode using the value which is characteristic of the combustion stability in the burners of the gas turbine. ### Claim 6 A control unit for a gas turbine, wherein the control unit is configured to carry out a method comprising: determining a corrected turbine outlet temperature as a function of a measured ambient temperature, determining, only when the measured ambient temperature is less than a predefined ambient temperature, a target temperature for the corrected turbine outlet temperature by using a value which is characteristic of the combustion stability in burners of the gas turbine and the measured ambient temperature; and regulating a fuel quantity supplied to the burners of the gas turbine based on the target temperature, wherein when the corrected turbine outlet temperature is less than the target temperature, increasing the fuel quantity supplied to the burners of the gas turbine, wherein when the corrected turbine outlet temperature is greater than the target temperature, decreasing the fuel quantity supplied to the burners of the gas turbine. ### Claim 7 (depends on 6) A gas turbine comprising: the control unit as claimed in claim 6. ### Claim 8 (depends on 7) A power plant comprising: the gas turbine as claimed in claim 7.