基于事件触发的网络化控制系统鲁棒控制与带宽调度协调设计

发布时间：2018-01-05 14:17

本文关键词：基于事件触发的网络化控制系统鲁棒控制与带宽调度协调设计　出处：《西北工业大学学报》2017年02期 　论文类型：期刊论文

【摘要】：大多数网络化控制系统中的控制器、传感器、执行器皆基于嵌入式微处理器实现,并通过有线或无线网络互联。网络带宽和网络节点等计算资源需要合理分配。为了在保证控制性能的同时高效利用有限资源,提出了一种基于事件触发的控制律与资源调度协调设计方法。首先,基于参数不确定离散切换模型对具有时变传输延迟的事件触发被控系统进行建模;在此基础上,基于线性矩阵不等式研究鲁棒控制律、事件触发机制、带宽调度策略协调设计方法。最后,以包含多个倒立摆的网络化控制系统为例,设计仿真实验,评估提出的协调设计策略性能。实验结果表明,与基于周期传输的控制策略相比,文中提出的基于事件的协调设计策略可以在占用较低资源的情况下获得更好的控制性能。
[Abstract]:The controllers, sensors and actuators in most networked control systems are based on embedded microprocessors. And through wired or wireless network interconnection, network bandwidth and network nodes and other computing resources need to be allocated reasonably. In order to ensure the control performance while making efficient use of limited resources. A coordinated design method of control law and resource scheduling based on event trigger is proposed. Firstly, the event triggered control system with time-varying transmission delay is modeled based on parameter uncertain discrete switching model. On this basis, robust control law, event trigger mechanism, bandwidth scheduling strategy coordination design method is studied based on linear matrix inequality. Finally, the networked control system with multiple inverted pendulum is taken as an example. The simulation experiment is designed to evaluate the performance of the proposed coordinated design strategy. The experimental results show that the proposed control strategy is compared with the control strategy based on periodic transmission. The event-based coordinated design strategy proposed in this paper can achieve better control performance in the case of low resource consumption.
【作者单位】：西北工业大学航海学院;哈尔滨工程大学自动化学院;
【基金】：陕西省自然科学基础研究计划(2014JQ8346) 黑龙江省自然科学基金(F201343)资助
【分类号】：TP273
【正文快照】： 随着嵌入式计算和通信技术的发展,网络化控制系统(networked control system,NCS)往往基于嵌入式处理器实现,并通过现场总线或工业无线网络形成闭环。然而,上述网络化控制系统中,尤其是无线网络,带宽资源是有限的,因此控制策略的设计除了要考虑控制性能还需要考虑带宽资源的合

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