摘要
针对一类具有网络时滞小于采样周期的网络控制系统提出网络控制的主要问题是网络通信系统模型的不确定性导致控制性能不佳;针对这一问题,采用基于无模型的自抗扰算法,将网络环节和被控对象一同视为控制对象,将网络时滞作为被控对象的不确定性因素,利用扩张状态观测器对不确定性因素进行实时观测估计;Matlab/TrueTime网络控制实验表明:自抗扰控制方法能够有效地减小网络诱导时滞对控制系统的影响。
Based on researching a class of induced delay smaller than sampling time of network control system,main problem is due to network communication system model uncertainty,that leads to poor control performance.To solve this problem,ADRC method that based on no model is used in this paper,network system and control object are regarded as control object together,the network delay be as uncertainties in the controlled object,using extended state observer（ESO） estimating variation of the control system real-timely.Matlab/TrueTime network control experiments show that： ADRC control method can effectively solve induced delay of network control systems.
出处
《计算机测量与控制》
CSCD
北大核心
2012年第2期367-370,共4页
Computer Measurement &Control
关键词
网络控制系统
诱导时滞
自抗扰控制器
扩张状态观测器
network control systems
induced delay
active disturbance rejection control
extended state observer
