Identification of Wiener Model Using Relay Feedback Test

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Ming-Wei Lee¹  Yeong-Tarng Tang¹  Hsiao-Ping Huang¹ 

[1] Department of Chemical Engineering, National Taiwan University

关键词: Wiener;    Relay Feedback;    Static Nonlinearity;    Linear Subsystem;    Deadtime;    Transfer Function;   

DOI  :  10.1252/jcej.31.604

来源: Maruzen Company Ltd

【 摘 要 】

References(9)Cited-By(8)A method for identifying a wiener-type model for nonlinear processes is proposed. The linear subsystem of the model is represented by simple transfer functions of the form such as: FOPDT (i.e. First-Order-Plus-Dead-Time) or an SOPDT (i.e. Second-Order-Plus-Dead-Time). The static nonlinearity is represented by an invertible function defined on an operation domain. Data from a two-stage relay feedback experiment in one single run is required. Simple algorithms are formulated to identifying both structure and parameters of the model. Estimation of parameters in both linear and nonlinear parts is performed separately and in an one-by-one sequence.

【 授权许可】

Unknown