Global finite-time stabilisation for a class of nonlinear systems in the p-normal form via output feedback

摘要

In this paper, a finite-time output feedback control scheme is presented for a class of nonlinear systems in thep-normal form. The nonlinear functions in the systems are assumed to be bounded by both low-order and high-order nonlinearities multiplied by a polynomial-type output-dependent growth rate, which are able to cover a more general ones. A reduced-order observer is constructed to estimate unmeasurable states, and a finite-time output feedback controller is proposed for the considered system by constructing a new Lyapunov function and using the adding a power integration technique. Two simulation examples are given to verify the effectiveness of the proposed scheme.