%0 Journal Article
%T Robust control method for integrating and unstable plants with time delay<br>具有时滞的积分和不稳定对象的鲁棒控制
%A LIU Tao
%A ZHANG Wei-dong
%A GU Dan-ying
%A <br>刘　涛
%A 张卫东
%A 顾诞英
%J 控制理论与应用
%D 2004
%I 
%X A novel two-degree-of-freedom control structure is proposed for integrating and unstable plants with time delay.Firstly,a proportional controller was subtly employed to stabilize the set-point response.Then the set-point tracking controller was designed in terms of the robust H\-2 optimal performance specification.According to the practical operation requirement for disturbance rejection,a load disturbance rejection closed-loop was configured between the plant input and output,in which the disturbance observer was commissioned for rejecting load disturbances.The disturbance observer was derived by proposing the desired closed-loop complementary sensitivity function.Meanwhile the sufficient and necessary conditions were provided for holding the closed-loop robust stability.Finally,simulation examples were included to demonstrate the superiority of the proposed method over recent other approaches.
%K integrating and unstable plant
%K time delay
%K two-degree-of-freedom
%K H\-2 optimal performance specification
%K robust stability<br>积分和不稳定对象
%K 时滞
%K 两自由度
%K H2最优性能指标
%K 鲁棒稳定性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=BAF24F1E4983B7C3&yid=D0E58B75BFD8E51C&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=92DE343A8428AA81&eid=F7C11D7E3E8C5D3F&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=9