SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (5): 752-761.

• • 上一篇    下一篇

Direct Adaptive Control Based on Gradient Estimation

赵众1, 马楠楠1, 潘立登1, 徐宁2, 孙康1,2   

  1. 1. Research Institute of Automation, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Beijing Research Institute of Chemical Technology, SINOPEC Corp., Beijing 100023, China
  • 收稿日期:2007-10-01 修回日期:2008-01-21 出版日期:2008-10-28 发布日期:2008-10-28
  • 通讯作者: ZHAO Zhong,E-mail:zhaozhong@mail.buct.edu.cn
  • 基金资助:
    the National Natural Science Foundation of China(60774080);BJNOVA 2005B15.

Direct Adaptive Control Based on Gradient Estimation

ZHAO Zhong1, MA Nannan1, PAN Lideng1, XU Ning2, SUN Kang1,2   

  1. 1. Research Institute of Automation, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Beijing Research Institute of Chemical Technology, SINOPEC Corp., Beijing 100023, China
  • Received:2007-10-01 Revised:2008-01-21 Online:2008-10-28 Published:2008-10-28
  • Supported by:
    the National Natural Science Foundation of China(60774080);BJNOVA 2005B15.

摘要: A control method of direct adaptive control based on gradient estimation is proposed in this article.The dynamic system is embedded in a linear model set.Based on the embedding property of the dynamic system,an adaptive optimal control algorithm is proposed.The robust convergence of the proposed control algorithm has been proved and the static control error with the proposed method is also analyzed.The application results of the proposed method to the industrial polypropylene process have verified its feasibility and effectiveness.

关键词: direct adaptive control, embedding property, gradient estimation, robust convergence, static error, polypropylene process

Abstract: A control method of direct adaptive control based on gradient estimation is proposed in this article.The dynamic system is embedded in a linear model set.Based on the embedding property of the dynamic system,an adaptive optimal control algorithm is proposed.The robust convergence of the proposed control algorithm has been proved and the static control error with the proposed method is also analyzed.The application results of the proposed method to the industrial polypropylene process have verified its feasibility and effectiveness.

Key words: direct adaptive control, embedding property, gradient estimation, robust convergence, static error, polypropylene process