摘要
网络技术的广泛应用,对控制理论的研究提出了挑战,同时也带来了崭新的研究机遇和发展空间。本文从网络控制系统的特点和要求出发,对网络时延及其对网络控制系统的影响进行了阐述,并与建模分析相结合,利用连续和离散系统理论建立了几种较为常用的网络控制系统数学模型。在建模过程中考虑了控制器的动态特性、不同的网络时延和不同的节点工作方式,为网络控制系统的分析、仿真和控制器的设计奠定了一定的理论基础。
The era of world connected by networks has imposed new challenges to control theories, and in the same time, provided new opportunities for their research and development. Considering the characteristics and needs of networked control system, this paper analyzes the network-induced delay and its impact on networked control system. Combining with modeling analysis, the mathematic models for several common networked control systems are proposed using continuous and discrete system theories. Dynamic characteristics of the controller, different network-induced delays and different node driving mode are taken into account in the modeling process, which establishes a theoretical base for analysis, simulation and design of networked control systems.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2008年第6期1323-1327,共5页
Chinese Journal of Scientific Instrument
基金
辽宁省博士启动基金(20071018)资助项目
关键词
网络控制系统
网络时延
建模分析
networked control system
network-induced delay
modeling analysis
