基于广义系统模型的网络控制系统问题  

Some issues on network control system based on singular system model

作　　者：张翼[1] 苏晓明[2] 赵植武[3] 张庆灵[1] 

机构地区：[1]东北大学理学院,沈阳110004 [2]沈阳工业大学理学院,沈阳110023 [3]大连大学信息工程学院,辽宁大连116622

出　　处：《沈阳工业大学学报》2006年第3期282-285,302,共5页Journal of Shenyang University of Technology

基　　金：国家自然科学基金资助项目(60574011);辽宁省自然科学基金资助项目(2050770);辽宁省教育厅重大基础研究基金资助项目(202062042)

摘　　要：首先研究了当被控对象为广义系统时,基于模型的网络控制系统的运行特性.基于模型的网络控制系统的特点是在传感器与控制器之间添加了一个模拟模型,利用被控对象经过网络传输后的带有误差的信息(包括被控对象的状态量)来对被控对象的原始状态量进行模拟.随后建立了针对广义系统对象的基于模型的网络控制系统数学模型.当网络诱导时延为小于一个采样周期的常数时,对系统的稳定性进行了分析.最后,通过一个数值算例说明了建模方法和稳定性分析判据的有效性.Model-based network control system characteristics are investigated, in which the controlled plant is in a form of singular system. A simulation model is added between the sensor and the controller, which is with the character of model-based network control systems. The error information, after the control plant is passed from the network, including the status of the control plant, is used to simulate the state vectors of the original control plant. A mathematic model of the model-based network control system with a singular system formulation is constructed. The stability is studied when the network transmitting time-delay is smaller than a constant of a period of sampling time. At last a numerical example is given to show the efficiency and correctness of the proposed approach and theory.

关 键 词：广义系统 基于模型的网络控制系统 渐近稳定 全局指数稳定 模拟模型 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]