FIELD: power industry.
SUBSTANCE: invention relates to power engineering. A control method of an operating point of a gas turbine, which involves determination of a turbine pressure coefficient, calculation of a reference threshold curve of transition from a combustion mode in the primary zone to a combustion mode in the primary and secondary zones as functions of turbine pressure coefficient, determination at the first point of time when exhaust gas temperature corresponding to the operating point is higher than exhaust gas temperature on the reference threshold curve of transition from the combustion mode in the primary zone to the combustion zone in the primary and secondary zones for one and the same turbine pressure coefficient, and variation, at the pre-specified time interval after the first point of time, of a parameter of fuel distribution from the first value to the second value if exhaust gas temperature corresponding to the operating point remains higher than exhaust gas temperature on the reference threshold curve of transition from the combustion mode in the primary zone to the combustion mode in primary and secondary zones. Besides, a controller for control of the operating point of the gas turbine is presented according to the method.
EFFECT: invention allows more accurate control of a gas turbine.
10 cl, 1 tbl, 15 dwg
