Bumpless Transfer of Uncertain Switched System and Its Application to Turbofan Engines

Nonlinear control problems in turbofan engines are challenging. No single nonlinear controller can achieve desired effects a full flight envelope, but the case of multiple controllers, there exist bumpless transfer between different controllers. To this end, paper presents mechanism for an uncertain switched system based on integral sliding mode (ISMC), and be used speed engines. The is to describe engine dynamics. Then, ISMC derived subsystems system. A resetting scheme introduced ensure continuity inputs during transition, as well transfer. In view transient behavior caused by switching, global stability analyzed using Lyapunov function approach average dwell time condition. Simulation results validate that designed input signals avoid instability high-frequency increase effectiveness proposed method within envelope.