Abstract:A control method combining robust gain scheduling control with the scheduling strategy based on system generalized distance is proposed for aeroengine control in full flight envelope. The Jacobian linearization technique is used to obtain linear model of aeroengine, and then some linear models are set as vertices of polytope model. Using robust gain scheduling control based polytope model, the controller of these vertices are obtained. The convex decomposition coefficients of other points in the envelope are calculated by gap metric, which is supposed as system generalized distance. With the convex decomposition coefficients and vertex controllers, the LPV controller is built and used for the intermediate state control of compressor. Simulation results show that the controller satisfies the performance demand of aeroengine control in full envelope. The stability and robustness are also verified by the simulation.