Identification and Controller Design for Nonlinear Processes Using Relay Feedback

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jyh-Cheng Jeng¹  Ming-Wei Lee²  Hsiao-Ping Huang¹ 

[1] Department of Chemical Engineering, National Taiwan University;Center for Environmental, Safety and Health Technology Development, Industrial Technology Research Institute

关键词: Wiener;    Hammerstein;    Relay Feedback;    Controller Design;   

DOI  :  10.1252/jcej.37.1194

来源: Maruzen Company Ltd

【 摘 要 】

References(11)Cited-By(7)As a sequel to the previous works of Huang and Lee (Huang et al., 1998, 2001; Lee and Huang, 2001), this work presents a new on-line method for identifying block-oriented models of Hammerstein-type or Wiener-type nonlinear processes from a relay feedback experiment. The identification of linear subsystem is focused. A simple transfer function of linear subsystem is determined by using an adjustable PI controller to develop a loop transfer function that has the dynamics of an integrator-plus-dead-time (IPDT) process. The static nonlinearity is represented by an invertible. Finally, the controller design using the identified model is illustrated.

【 授权许可】

Unknown