论文标题
非线性系统的异步事件触发控制
Asynchronous Event-Triggered Control for Non-Linear Systems
论文作者
论文摘要
随着网络控制系统无处不在的越来越多，出现了各种采样子系统输出的各种策略。与周期性采样相反，事件触发的控件仅在满足状态依赖性误差阈值时才触发更新，从而有效地采样子系统并保存网络资源使用情况。本文中，我们描述了使用带有混合动力学的采样器子系统对非线性植物进行异步事件触发的测量和对照（ETC）的新颖方案。我们通过采用不需要触发周期性或同时性的采样器子系统动力学的更一般表示来扩展现有的ETC文献，从而适应了同步和异步应用程序的不同采样方案。我们确保通过使用辅助计时器变量与状态依赖性误差阈值结合使用辅助计时器变量来确保工厂和控制器触发规则不容易受zeno行为的影响。我们以数值示例为例，以说明应用此类方案时重要的实际考虑因素。
With the increasing ubiquity of networked control systems, various strategies for sampling constituent subsystems' outputs have emerged. In contrast with periodic sampling, event-triggered control provides a way to efficiently sample a subsystem and conserve network resource usage, by triggering an update only when a state-dependent error threshold is satisfied. Herein we describe a novel scheme for asynchronous event-triggered measurement and control (ETC) of a nonlinear plant using sampler subsystems with hybrid dynamics. We extend existing ETC literature by adopting a more general representation of the sampler subsystem dynamics that do not require trigger periodicity or simultaneity, thus accommodating different sampling schemes for both synchronous and asynchronous ETC applications. We ensure that the plant and controller trigger rules are not susceptible to Zeno behavior by employing auxiliary timer variables in conjunction with state-dependent error thresholds. We conclude with a numerical example in order to illustrate important practical considerations when applying such schemes.
