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山东大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (5): 43-50.doi: 10.6040/j.issn.1672-3961.0.2014.355

• 控制科学与工程 • 上一篇    下一篇

串级时滞过程的二自由度Smith预估控制

张井岗, 马文廷, 赵志诚   

  1. 太原科技大学电子信息工程学院, 山西 太原 030024
  • 收稿日期:2014-12-09 修回日期:2015-05-20 出版日期:2018-10-20 发布日期:2014-12-09
  • 作者简介:张井岗(1965-),男,山西运城人,教授,博士,主要研究方向为鲁棒控制,智能控制及其应用.E-mail:jg_zhang65@163.com
  • 基金资助:
    山西省自然科学基金资助项目(2011011011-2);山西省回国留学人员科研资助项目(2013-092)

Two-degree-of-freedom Smith predictor control for cascade time delay process

ZHANG Jinggang, MA Wenting, ZHAO Zhicheng   

  1. School of Electronics and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China
  • Received:2014-12-09 Revised:2015-05-20 Online:2018-10-20 Published:2014-12-09

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摘要： 提出了串级时滞过程的二自由度Smith预估控制方法。主回路采用由设定值跟随控制器和干扰抑制控制器组成的二自由度Smith预估控制结构,副回路采用内模控制结构。主回路两个控制器运用解析设计方法设计,使系统设定值跟随性和干扰抑制特性解耦。理论分析和仿真结果表明,该方法结构简单,控制器参数调整方便,系统具备良好的设定值跟随特性、干扰抑制特性和鲁棒性。

关键词: 内模控制, 鲁棒性, 串级时滞过程, 二自由度, Smith预估控制

Abstract: A novel two-degree-of-freedom (2DOF) Smith predictor control scheme for cascade time-delay process was proposed. The 2DOF Smith predictor control structure, which consist of setpoint tracking controller and disturbance rejection controller, was adopted in the main loop. And the internal model control structure was adopted in the secondary loop. The two controllers were respectively designed by an analytical method in the main loop. The setpoint tracking characteristics was decoupled from the disturbance rejection characteristics. Theoretical analysis and simulation results showed that the proposed control structure was simple, the controller parameters could be adjusted conveniently, and the system has a very good dynamic response performance and robustness.

Key words: cascade time-delay process, two degree of freedom, internal model control, Smith predictor control, robustness

中图分类号: 

  • TP273
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