Design method of nonlinear adaptive controller for the main steam valve of turbogenerator set considering state constrain

Abstract

Aiming at the main steam-valve control of turbine generator unit with amplitude constraint and parameter uncertainty, adaptive backstepping is implemented on the main steam valve controller. The controller not only has an adaptive ability to uncertain parameters of the system and a good transient response performance, but also does not linearize the system. Meanwhile, the problem of state limit in the main steam-valve control of turbogenerator is effectively solved by using the Lyapunov function with constraints. Simulation results are presented to show the performance of the adaptive backstepping control.