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CLOSED LOOP IDENTIFICATION BASED ON QUANTIZATION
M. Wang*, N.F. Thornhill+ and B. Huang#
* Centre for Process Systems Engineering, Imperial College of Science and
Technology, Prince Consort Road, London SW7 2BY.
+ Centre for Process Systems Engineering, Department of Electronic and
Electronic Engineering, Torrington Place, University College London,
London WC1E 7JE (corresponding author).
# Department of Chemical and Materials Engineering, University of Alberta,
Edmonton, Alberta, Canada T6G 2G6.
This paper proposes a new closed-loop identification scheme for a single-input-single-output control loop. It is based upon a quantizer inserted into the feedback path. The quantizer can be used to generate an equivalent persistently exciting signal with which the well known two-stage or two-step method can be used directly. Simulation examples and an experimental demonstration are used to illustrate the proposed scheme.
Keywords: Chemical industry; closed-loop identification; process control; quantization; time-series analysis
Session slot T-Mo-M21: Posters of Industrial Applications/Area code 7a : Chemical Process Control
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