电子科技大学学报2017，Vol.46Issue(1)：38-45,8.DOI:10.3969/j.issn.1001-0548.2017.01.007
串级不稳定时滞过程的内模控制器设计
Design Method of IMC Controllers for Unstable Cascade Processes with Time Delay
摘要
Abstract
A design method of internal model control (IMC) controllers for unstable cascade processes with time delay is presented. The cascade proposed structure contains two control loops, a secondary loop and a primary loop. In the secondary loop, an analytical design method is derived based on the traditional IMC, it can quickly reject the disturbance in the inner loop. In order to decouple the set-point tracking characteristic from disturbance rejection characteristic, a 2 degree of freedom (DOF) IMC structure is used in the primary loop. Then the set point tracking controller and the disturbance rejection controller can be tuned independently, which overcomes the shortage of a traditional IMC. Both theoretical analysis and simulation results demonstrate that the proposed method can reduce the number of controller effectively,meanwhile provide good performance of set-point tracking and disturbance rejection as well as robustness simultaneously.关键词
二自由度控制/串级控制/内模控制/不稳定时滞过程Key words
2 degree of freedom (DOF) control/cascade control/internal model control/unstable process with time delay分类
信息技术与安全科学引用本文复制引用
张井岗,秦娜娜..串级不稳定时滞过程的内模控制器设计[J].电子科技大学学报,2017,46(1):38-45,8.基金项目
山西省自然科学基金(2011011011-2)；山西省回国留学人员科研项目(2013-092) （2011011011-2）
