METHOD AND APPARATUS FOR PREDICTING TURBINE OUTLET TEMPERATURE OF GAS TURBINE

• Main Authors: KAWANO Yukihiro, SODEKODA Shiho, KANIWA Masato, SCHMIT Nicolas
• Format: Patent
• Language: English; French; German
• Published: 22.01.2020
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

In a method for predicting a turbine outlet temperature at a future use based on a past use of a gas turbine, the turbine outlet temperature at a future use that is an objective variable is predicted by a turbine outlet temperature model by using a parameter in environmental and operational conditions planned for the future use and a rotating speed of a fan planned for the future use as explanatory variables, and coefficients with respect to the explanatory variables are identified through a learning every time when a learning trigger is satisfied. In learning of the coefficients, the coefficients with respect to the explanatory variables are identified based on a result of a regression learning of the explanatory variables and the objective variable of the turbine outlet temperature model that is made by using the parameter, the rotating speed of the fan and the turbine outlet temperature at the past use of the gas turbine.