METHOD FOR CONTROLLING THE TEMPERATURE OF GASES DOWNSTREAM OF A HIGH-PRESSURE TURBINE OF A GAS TURBINE ENGINE Russian patent published in 2022 - IPC F02C9/28 

FIELD: energy.

SUBSTANCE: invention relates to the field of energy, in particular to a method for controlling a low-emission gas turbine engine, and can be used in gas compressor units. The method comprises controlling the low-emission mode based on the found current values ​​of the outlet gas temperature. The set point Tts downstream of the high-pressure turbine (HPT) is set, the current values ​​of the temperature downstream of the HPT Tt are additionally measured, the differences between the setpoint Tts downstream of the HPT and the current values ​​of the temperature downstream of the high-pressure turbine Tt the temperature after the HPT Tts plus the hysteresis value Tts + 3°C, the temperature after the HPT Tm is compared with the set setting Ttempad after the HPT minus the value of hysteresis Tts - 3°C, a control action is formed on the bypass valve at the engine inlet, while the algorithm generates the required position of the valve bypass to the motor input at speed A*K tempKPVV (%/s) at Tt < Tts - 3°C, at minus A*K tempKPVV at Tt > Tts + 3°C, at speed dT*K tempKPVV/3 at Tt < Tts + 3°C and Tt > Tts - 3°C, where A is the temp coefficient, equal to the value in the range of 0.18…0.29, K tempKPVV - coefficient of the bypass valve switching speed to the engine inlet.

EFFECT: present invention makes it possible to control the temperature of the gases behind the high-pressure turbine according to the measured parameter in the stable zone, to improve the reliability of the operation of a gas turbine engine with a low-emission combustion chamber.

2 cl, 1 dwg