%0 Journal Article
%T Optimal disturbance rejection for systems with time delays in high-speed networks<br>时滞系统在高速网络下的最优扰动抑制
%A TANG Gong-you
%A GE Shao-ting
%A <br>唐功友
%A 盖绍婷
%J 控制理论与应用
%D 2010
%I 
%X The optimal disturbance rejection is considered for systems with delayed control and measurement in highspeed communication networks. Firstly, the discrete-time mathematical models for systems with delayed control and measurement are established. Based on a model transformation, we transform the system with delays to a formal system without delay. Then, the optimal control law with a state feedback, a disturbance feedforward and a control memory term is derived from a discrete Riccati equation and a Stein equation. The feedforward control term and the control memory term compensate for the effects of disturbances and the control delay, respectively. A dynamic control law with a disturbance feedforward, an output feedback and a control memory term is designed by constructing a reduced-order disturbance state observer, the observer makes the feedforward compensator physically realizable. Simulation results demonstrate the effectiveness of the optimal control law.
%K time delays
%K discrete-time systems
%K networked control systems
%K disturbances
%K optimal control
%K observer<br>时滞
%K 离散时间系统
%K 网络控制系统
%K 扰动
%K 最优控制
%K 观测器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=494AE93DE15F91246DE01A5E4E22E354&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=DF92D298D3FF1E6E&sid=78AF84DBB4041008&eid=714E16F7CF56F343&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=17