考虑通信约束的离散时间切换奇异时滞系统镇定研究

项目名称： 考虑通信约束的离散时间切换奇异时滞系统镇定研究

项目编号： No.61473158

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 林金星

作者单位： 南京邮电大学

项目金额： 84万元

中文摘要： 目前对切换系统的研究大都基于一个假设，即测量、控制数据以及切换信号在被控对象和控制器之间的传输是实时精确的，这具有很大的局限性。本项目以离散时间切换奇异时滞系统为研究对象，从实际网络化应用角度出发，对其在信息传输时延、数据随机丢包以及信道传输容量限制（包括动态量化及数据位速率约束）三类典型通信约束情形下的切换镇定问题进行研究。主要研究内容包括：分析并指出各种通信约束给系统设计所带来的根本困难，设计时间依赖型切换律和模态依赖控制器，建立切换律、时延、丢包、量化以及数据率约束特征参数与系统参数和闭环性能间的定量关系，揭示切换奇异时滞系统在复杂网络工业环境中的特性及运行机制，以基于无线网络的多负载点下直流电动机远程调速控制作为实例验证得到的理论成果。本项目旨在为复杂网络化工业环境中高效、可靠地应用切换控制系统提供新的理论方法与依据。

中文关键词： 切换控制；奇异时滞系统；网络化控制；通信约束；切换镇定

英文摘要： Currently, the research on switched systems is mainly based on an assumption, i.e., the measurement data, control data and the switching signals between the controlled objective and the controller are real-time and accurate, which has serious limitations. From the industrial networked application point of view, this project is concerned on the stabilization problem for discrete time switched singular time-delay systems subject to three kinds of typical communication constraints. The communication constraints considered here include information transmission delays, stochastic packet losses and limited channel capacity (including dynamic quantization and data bit rate). The content of this project mainly include: figuring out fundamental difficulties that the communication constraints bring upon to the synthesis of underlying systems; designing of time-dependent switching laws and mode-dependent controllers; establishing quantitative relations among system parameters and performances, and characteristic parameters characterizing the switching laws, delays, data packet losses, quantization and data rates; revealing the characteristics and operation mechanisms of switched singular time-delay systems in complex network environment; applying the obtained theoretical results to wireless network based remote speed tuning of direct motor under multiple load conditions. This project aims to provide new theoretical approach and basis for effective and reliable applying the switched systems to complex networked engineering systems.

英文关键词： Switched systems;Singular time-delay systems;Networked control;Communication restrictions;Switching stabilization