電機系 李祖添 約聘專任一般講座教授於
Backstepping-based finite-time adaptive fuzzy control of unknown nonlinear systems.
：Backstepping-based finite-time adaptive fuzzy control of unknown nonlinear systems.期刊論文Backstepping-based finite-time adaptive fuzzy control of unknown nonlinear systems.Chia-Wen Chang; Chun-Fei Hsu; Tsu-Tian Lee,Adaptive control;Backstepping control;Finite-time stability;Ellipsoidal type-2 membership functionInternational Journal of Fuzzy Systems 20(8), p.2545-2555This paper proposes a backstepping-based finite-time adaptive fuzzy controller (BFAFC) for a nonlinear system in the present of unknown and uncertainty terms. A nonsingleton type-2 fuzzy system is presented to online approximate the unknown term in the nonlinear system, where the ellipsoidal type-2 membership functions are considered to deal with large amounts of uncertainties. Moreover, to further improve the control performance, the parameter adaptive laws are designed by the Lyapunov function and finite-time stability theorem in this paper such that not only the system stability but also the finite-time convergence can be