nonlinear systems with time delays have been object of intense investigation in the last decades for their ability of capturing the behavior of many natural and engineering systems, including ecological, biomedical, i...
详细信息
nonlinear systems with time delays have been object of intense investigation in the last decades for their ability of capturing the behavior of many natural and engineering systems, including ecological, biomedical, industrial, robotic, and networked systems. In this article, a method for the event-triggered stabilization in the sample-and-hold sense of nonlinear time-delay systems with time-varying state delays is presented. The approach exploits control Lyapunov-Razumikhin functions and a spline-based approximation of the functional state feedback, resulting in a finite-memory controller that avoids (by construction) continuous-state monitoring while ensuring also that the minimal interevent time is strictly positive. Examples of application of the illustrated technique highlight the potential of the approach taken.
nonlinear sampled-data stabilization of dynamically positioned ships is considered by reduced-order observer-based emulation controllers. Using a backstepping technique, continuous-time state feedback stabilizing feed...
详细信息
ISBN:
(纸本)9781424453634
nonlinear sampled-data stabilization of dynamically positioned ships is considered by reduced-order observer-based emulation controllers. Using a backstepping technique, continuous-time state feedback stabilizing feedback laws for ships are designed and then under natural detectability assumption for ships linear time-invariant continuous-time reduced-order observers are obtained. Then combining an emulation of the designed state feedback laws and the exact discretization of the obtained observers, the output feedback semiglobal practical asymptotic stabilizing controllers are given for sampled-data dynamically positioned ships. A numerical example is given to illustrate the proposed design method.
暂无评论