对称极点配置的不稳定时滞系统优化控制  

Twice Optimal Control to Unstable System with Time-delay Using Symmetric Pole Assignment

作　　者：王钦若[1] 邓九英[1] 张慧[1] 叶宝玉[1] 

机构地区：[1]广东工业大学自动化学院,广东广州510009

出　　处：《控制工程》2012年第S1期1-4,共4页Control Engineering of China

摘　　要：探讨工业过程中包含单个右半平面极点不稳定时滞对象的稳定控制,大时滞系统的优化控制设计,对不稳定加时延模型中的不稳定部分采用比例反馈,把不稳定部分的右半平面极点配置为对称的左半平面极点,然后用两次优化方法对稳定时滞过程进行优化控制设计,形成不稳定时滞对象优化控制结构,分析不稳定时滞对象控制响应的性能,最后给出仿真几种不同难控度对象的响应结果,表明系统控制结构的简单实用,改进了对大时滞(L/T≤8)不稳定对象的鲁棒控制与抗干扰能力。The stabilization control and optimal control design of unstable and time-delay units with one right-half plane pole in industrial process is focused on.The proportional feedback is applied to the unstable part of transfer function.Its right-half plane pole is moved to the left-half plane pole by symmetric pole assignment loop.Furthermore,the optimal control design of the stable process with time-delay is done by twice optimization method.The optimal control structure is formed easily and intuitively.The control robustness of an unstable time-delay object is not lost.There are the control response experiments of varied delay time process.It is illustrated that the presented method and control structure are simple and efficient.The robust and capability of disturbance rejection are improved evidently.

关 键 词：大时滞系统 不稳定时滞对象优化 两次优化控制 对称极点配置 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]