Multivariable Steady State Control of Aeroengine Based on Backstepping Method

Aeroengine control system is based on engine model design, to ensure that the engine can operate stably, safely and reliably under various working conditions and working conditions. Stability control is the basic performance requirement of engine control system. In this paper, based on the existing linear state variable model and linear variable parameter model (LPV) of a turbofan engine, aiming at the characteristics of backstepping method, the nonlinear affine model of aeroengine is established, and the backstepping control law is designed by using backstepping method to realize the steady-state control of aeroengine. The simulation results show that in the process of engine steady-state control, the control law can ensure that the controlled variables can quickly restore to the original stable state under disturbance conditions. The research shows that the steady-state control method of engine established in this paper has certain engineering practical value.