Study of aeroengine linear parameter varying modeling

Gain-scheduling control techniques based on the LPV (Linear Parameter Varying) model have increasingly been applied to aeroengine control system. This article describes two techniques of LPV modeling which are Jacobian technique and velocity-based technique, respectively. A quasi-LPV model of a turbofan engine is constructed and simulated over dynamic process. Compared with aeroengine nonlinear model, the results indicate this model has good dynamic performance. Thus, a practice method is provided for LPV gain-scheduling research of aeroengine control system.