Design of Sliding Mode Controller with Self-adaption for a Morphing Aircraft

With different flight conditions and tasks, the morphing aircraft can change its shape to obtain optimal aerodynamic performance. In this paper, a controller design method for linear parameter-varying (LPV) system is studied. Firstly, the establishment process of LPV model is introduced. The open loop dynamic responses of LPV model and actual nonlinear model are compared. Then, on the basis of satisfying the Linear Matrix Inequality (LMI) condition of Lyapunov stability, a class of finite time convergent self-adaptive sliding mode variable structure controller (ASMC) is designed, and the stability of the model is proved. Finally, the simulation result shows that the above controller can maintain global stability of variant process when the external upper bound is unknown.