Method for keeping combustion of gas turbine stable in dynamic process, computer readable medium, and gas turbine control system

Abstract

The present disclosure provides a method for maintaining stable combustion of a gas turbine during a dynamic process, a computer-readable medium, and a gas turbine control system. The method comprises: compensating a fuel control valve stroke command δf,CLC with a fuel flow compensation function Gf,COMP(s); and compensating a VIGV command θVIGV,CLC with an air flow compensation function Gair,COMP(s), wherein the fuel flow compensation function Gf,COMP(s) and the air flow compensation function Gair,COMP(s) satisfy the following relation: Gf,COMP(s)·Gf(s)=Gair,COMP(s)·Gair(s), and an fuel-to-air ratio is directly proportional to δf,CLC/θVIGV,CLC even during the dynamic process, where Gf(s) represents an overall transfer function of a fuel channel from a fuel control valve servo system to an inlet of a combustion chamber, and Gair(s) represents an overall transfer function of an air channel from a VIGV servo system to the inlet of the combustion chamber.

Dependencies are inferred from the claim text.