Du är här

Transfer Function Parameter Identification by Modified Relay Feedback

Publiceringsår: 2010
Språk: Engelska
Sidor: 2164-2169
Dokumenttyp: Konferensbidrag
Övrig information: Key=solacc10 month=June

Sammanfattning

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.

Disputation

Nyckelord

  • Technology and Engineering
  • relay
  • identification
  • parametric
  • transfer function
  • state space
  • FOTD

Övrigt

2010 American Control Conference
2010-06-30
Baltimore, Maryland, USA
Published
  • PICLU
Yes
  • LCCC
  • ISSN: 0743-1619
  • ISBN: 978-1-4244-7426-4

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen

LERU logo U21 logo