PDF全文下载：2011060641
刘川来， 刘祥妹， 赵艳东
（青岛科技大学 自动化与电子工程学院，山东 青岛 266042）
摘要: 研究了一类具有时滞环节的非线性系统的控制问题，利用将Smith预估器与自抗扰控制（ADRC）算法相结合的控制策略。Smith预估器用于消除时滞引起的影响，ADRC把系统的未建模动态和未知外扰作用归结为对系统的“总扰动”而进行估计并补偿，实现系统的无静差控制，且鲁棒性、适应性、抗干扰性强。仿真结果表明了该策略是有效可行的。
关键词: 时滞系统； Smith预估器；自抗扰控制
中图分类号: TP 273 文献标志码： A
Application of ADRC-Smith Predictor in a Process System with Time Delay
LIU Chuan-lai, LIU Xiang-mei，ZHAO Yan-dong
(College of Automotion and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042,China)
Abstract: The control problem for a class of nonlinear systems with time delay is studied by using the control strategy of the combination with the Smith predictor and auto disturbance rejection controller (ADRC). The Smith predictor is used to eliminate the effects of lag. The method of ADRC which consider the un-modeled dynamics and the unknown disturbance as total disturbance of the system ,is used to estimate and compensate total disturbance of the system. By using this method, the system is robust, adaptable, with zero static error and with strong ability of disturbance rejection. A simulation example is employed to illustrate the effectiveness of this strategy.
Key words: time delay; Smith predictor; auto disturbance rejection controller
收稿日期:2011-06-10
基金项目： 青岛市应用基础研究项目（10-3-4-4-3-jch）.
作者简介： 刘川来（1947—）,男，教授.
