On the Exponential Stability of Some Nonlinear Systems

Persidskii, S. K.

doi:10.1007/s11253-005-0178-7

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…14 Recently, problems of necessary and sufficient conditions of nonlinear systems have attracted much attention from researchers. [15][16][17] Bernstein 18 developed sufficient conditions for asymptotic stability and optimality of nonlinear systems. Combined Hamilton-Jacobi-Bellman equation (HJBE) and Lyapunov theorem, the asymptotic stability and optimality were guaranteed for nonlinear systems.…”

Section: Introductionmentioning

confidence: 99%

A unified framework of rapid exponential stability and optimal feedback control for nonlinear systems

2019

Advances in Mechanical Engineering

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A novel framework of rapid exponential stability and optimal feedback control is investigated and analyzed for a class of nonlinear systems through a variant of continuous Lyapunov functions and Hamilton-Jacobi-Bellman equation. Rapid exponential stability means that the trajectories of nonlinear systems converge to equilibrium states in accelerated time. The sufficient conditions of rapid exponential stability are developed using continuous Lyapunov functions for nonlinear systems. Furthermore, according to a variant of continuous Lyapunov functions, a rapid exponential stability is guaranteed which satisfies some canonical conditions and Hamilton-Jacobi-Bellman equation for controlled nonlinear systems. It is can be seen that the solution of Hamilton-Jacobi-Bellman equation is a continuous Lyapunov function, and, therefore, rapid exponential stability and optimality are guaranteed for nonlinear systems. Last, the main result of this article is investigated via a nonlinear model of a spacecraft with one axis of symmetry through simulations and is used to check rapid exponential stability. Moreover, for the disturbance problem of initial point, a rapid exponential stable controller can reject the large-scale disturbances for controlled nonlinear systems. In addition, the proposed optimal feedback controller is applied to the tracking trajectories of 2-degree-of-freedom manipulator, and the numerical results have illustrated high efficiency and robustness in real time. The simulation results demonstrate the use of the rapid exponential stability and optimal feedback approach for real-time nonlinear systems.

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