Constructing networks of continuous-time velocity-based models

S.C. McLoone, George Irwin, S.F. McLoone

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A conventional local model (LM) network consists of a set of affine local models blended together using appropriate weighting functions. Such networks have poor interpretability since the dynamics of the blended network are only weakly related to the underlying local models. In contrast, velocity-based LM networks employ strictly linear local models to provide a transparent framework for nonlinear modelling in which the global dynamics are a simple linear combination of the local model dynamics. A novel approach for constructing continuous-time velocity-based networks from plant data is presented. Key issues including continuous-time parameter estimation, correct realisation of the velocity-based local models and avoidance of the input derivative are all addressed. Application results are reported for the highly nonlinear simulated continuous stirred tank reactor process.
Original languageEnglish
Pages (from-to)397-405
Number of pages9
JournalIEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS
Volume148
Issue number5
Publication statusPublished - Sep 2001

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Instrumentation

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