摘要
网络控制系统中网络时延的引入,影响系统性能,甚至引起不稳定。为了便于分析网络时延对控制系统稳定性的影响,采用简单的比例控制器,利用双轨图,分析了单摆网络控制系统存在网络时延时的稳定性问题,给出了不稳定范围和稳定范围。同时也给出了单摆网络控制系统稳定性与阻尼系数之间的关系。结果显示利用双轨图进行有时间延迟的网络控制系统稳定性分析非常有效。
Network delays induced by communication network can deteriorate the control performance and even cause the instability.With a view to analyzing this influence on the stability of the control system,the single pendulum networked control system was analyzed and its potential unstable and stable regions were given,including the relation between this control system and the damping coefficient.The results prove the effectiveness of employing the dual-locus diagram to analyze the robust stability of time-delay single pendulum networked control system.
出处
《化工自动化及仪表》
CAS
北大核心
2011年第1期23-26,共4页
Control and Instruments in Chemical Industry
基金
上海市教委高校选拔培养优秀青年教师科研专项基金资助项目(YYY08005)
关键词
网络控制系统
网络时延
双轨图
稳定性分析
networked control system
network delays
dual-locus diagram
stability analysis
