SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (6): 1094-1101.

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Partially Decentralized Controller Design via Model Predictive Control*

郝玉春1, 李强1, 谭文1, 李东海2   

  1. 1. School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, Chinap;
    2. State Key Lab of Power Systems, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2012-03-31 修回日期:2012-07-10 出版日期:2012-12-28 发布日期:2012-12-28
  • 通讯作者: HAO Yuchun,E-mail:haoyuchun@ncepu.edu.cn
  • 基金资助:
    Supported by the National Natural Science Foundation of China (61174096);the Natural Science Foundation of Beijing(4122075);the Natural Science Foundation of Hebei Province (F2011502069)

Partially Decentralized Controller Design via Model Predictive Control*

HAO Yuchun1, LI Qiang1, TAN Wen1, LI Donghai2   

  1. 1. School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, Chinap;
    2. State Key Lab of Power Systems, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China
  • Received:2012-03-31 Revised:2012-07-10 Online:2012-12-28 Published:2012-12-28
  • Supported by:
    Supported by the National Natural Science Foundation of China (61174096);the Natural Science Foundation of Beijing(4122075);the Natural Science Foundation of Hebei Province (F2011502069)

摘要: An expansion procedure to design partially decentralized controllers via model predictive control is proposed in this paper.Partially decentralized control is a control structure that lies between a fully decentralized structure and a fully centralized one,and has the advantage of achieving comparable performance as a fully centralized controller but with simpler structure.The proposed method follows the expansion method proposed in a previous paper where internal model control (IMC) was used to design controllers for non-square subsystems.The method requires computing the pseudo-inverse of a non-square matrix via pseudo-inverse factors.Instead,the proposed method uses dynamic matrix control (DMC) to design PID controllers for non-square subsystems without using additional factors.The effectiveness of the proposed method is demonstrated on several chemical examples.Simulation results show that the proposed method is simple and can achieve better performance.

关键词: partially decentralized control, non-square system, model predictive control, internal model control

Abstract: An expansion procedure to design partially decentralized controllers via model predictive control is proposed in this paper.Partially decentralized control is a control structure that lies between a fully decentralized structure and a fully centralized one,and has the advantage of achieving comparable performance as a fully centralized controller but with simpler structure.The proposed method follows the expansion method proposed in a previous paper where internal model control (IMC) was used to design controllers for non-square subsystems.The method requires computing the pseudo-inverse of a non-square matrix via pseudo-inverse factors.Instead,the proposed method uses dynamic matrix control (DMC) to design PID controllers for non-square subsystems without using additional factors.The effectiveness of the proposed method is demonstrated on several chemical examples.Simulation results show that the proposed method is simple and can achieve better performance.

Key words: partially decentralized control, non-square system, model predictive control, internal model control