一阶时滞系统的智慧PI控制
Wisdom PI control for first-order systems with time-delay
摘要点击 57  全文点击 68  投稿时间:2018-05-29  修订日期:2018-10-09
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DOI编号  10.7641/CTA.2018.80398
  2019,36(8):1322-1328
中文关键词  时滞系统  智慧PI控制  鲁棒稳定性;增益整定规则;自适应参数
英文关键词  time-delay system  quasi-pi control  global stability  tuning-free parameter  strong anti- disturbance
基金项目  
学科分类代码  
作者单位E-mail
曾喆昭 长沙理工大学电气与信息工程学院 508984293@qq.com 
刘文珏 长沙理工大学电气与信息工程学院  
中文摘要
      针对一阶时滞系统的控制问题, 提出了一种不依赖于受控对象模型的智慧PI控制方法。该方法由两个阶段组成,第一阶段( )使用比例控制方法,第二阶段( )使用智慧PI控制方法。如果滞后时间 无法确知时,则可以根据被控对象的检测状态来确定切换时间 。理论分析表明,智慧PI控制器只有一个增益参数,不仅能够保证闭环控制系统是全局渐近稳定的,而且控制器增益有很大的整定裕度。数值仿真实验表明了该方法不仅响应速度快、控制精度高,而且还具有较强的抗扰动能力,因而是一种有效的控制方法, 在时滞系统控制领域具有广泛的应用价值。
英文摘要
      A wisdom proportional-integral (WPI) control method which does not depend on the model and attribute of the controlled objects is proposed for the control problem of first-order systems with time-delay. The proposed control approach consists of two phases which the proportional control is used in the first stage ( ) and the wisdom PI control is done in the second phase ( ). If the delay-time is not known, the switching time can be determined according to the detection state of the controlled plant. The theoretical analysis showed that the wisdom PI controller has only one gain parameter, which can not only guarantee the global asymptotic stability of the closed-loop control system, but also has a large tuning margin for the controller gain. Numerical simulation results showed that the proposed method is effective in response to not only fast response speed and high control accuracy, but also strong anti-disturbance capacity, which has wide application value in the field of time-delay system control.