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应用科学学报 ›› 2005, Vol. 23 ›› Issue (2): 144-148.

• 论文 • 上一篇    下一篇

状态和输入多时变时滞非线性系统的干扰补偿控制器设计

王占山1,2, 张化光1   

  1. 1. 东北大学信息科学与工程学院, 辽宁沈阳 110004;
    2. 沈阳工业学院信息工程系, 辽宁沈阳 110045
  • 收稿日期:2003-11-28 修回日期:2004-03-10 出版日期:2005-03-31 发布日期:2005-03-31
  • 作者简介:王占山(1971-),男,辽宁抚顺人,博士生,E-mail:zhanshan-wang@163.com;张化光(1959-),男,吉林省吉林市人,教授,博导.
  • 基金资助:
    国家自然科学基金资助项目(60274017)

Design of a Disturbance Reduction Controller for a Class of Nonlinear Systems with Multiple State and Input Delays

WANG Zhan-shan1,2, ZHANG Hua-guang1   

  1. 1. School of Information Science and Engineering, Northeastern University, Shenyang 110004, China;
    2. Department of Information Engineering, Shenyang Institute of Technology, Shenyang 110045, China
  • Received:2003-11-28 Revised:2004-03-10 Online:2005-03-31 Published:2005-03-31

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摘要： 针对干扰波形已知但幅值未知的情况,对于状态和输入均存在多时变时滞的一类非线性系统设计了干扰补偿控制器.由于未知无界干扰的作用将使系统的状态失去控制,必须对干扰进行补偿控制.为得到系统状态和干扰的估计,将干扰系统和受控系统构成增广系统,对此增广系统设计非线性时滞状态观测器,并将干扰估计值作为补偿控制器的输入从而实现对干扰的补偿.

关键词: 干扰补偿控制器, 多时变时滞, 干扰波形, 非线性系统, 观测器

Abstract: To cope with the unmeasurable external disturbance having known waveform but unknown magnitudes, a disturbance compensator is designed for a class of nonlinear systems with multiple state and input time-variant delays.When the unbounded disturbance enters the time-delay systems, the systems state variables will go out of control.Thus it is necessary to design a reduction controller to compensate or minimize the effects of the disturbance.In order to obtain the estimation of state and disturbance, an augmented system is constructed by the nonlinear system and the disturbance system, and a time-delay composite state observer is designed to give the estimation of state and disturbance.Hence, the disturbance reduction controller is derived and the systems state variables are kept in control.An illustrative example shows the effectiveness of the proposed methods.

Key words: multiple time-variant time-delays, disturbance waveform, observer, disturbance reduction controller, nonlinear system

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