Title
Transfer function parameter identification by modified relay feedback
Abstract
This paper proposes a transfer function parameter identification method, applicable to SISO systems of any order. Parameter identification is posed as a (non-convex) squared output error minimization problem, numerically solved utilizing Newton-Raphson iteration with back tracking line search. Focus lies on computing the cost function gradient and Hessian with respect to the parameter vector and on finding a feasible start point. The method is demonstrated for FOTD model identification. A modified relay non-linearity is utilized in order to obtain most input signal energy at a predefined phase, without a priori system information. The identification method is evaluated on a batch of common process industry processes. Finally, conclusions and suggestions on future work are provided.
Year
DOI
Venue
2010
10.1109/ACC.2010.5531322
American Control Conference
Keywords
DocType
ISSN
newton-raphson method,backtracking,parameter estimation,process control,transfer functions,hessian,newton-raphson iteration,siso systems,back tracking line search,cost function gradient,modified relay feedback,squared output error minimization problem,transfer function parameter identification,transfer function,newton raphson method,identification,cost function,mathematical model,model identification,state space,newton raphson,parametric,line search,oscillators
Conference
0743-1619
ISBN
Citations 
PageRank 
978-1-4244-7426-4
2
0.48
References 
Authors
0
3
Name
Order
Citations
PageRank
Soltesz, K.1101.70
Hägglund, T.220.48
Åström, K.J.320.48