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Design and application of PIP controllers: robust control of the IFAC ’93 benchmark

Chotai, Arun and Taylor, C. James and Young, Peter C. (2001) Design and application of PIP controllers: robust control of the IFAC ’93 benchmark. Transactions of the Institute of Measurement and Control, 23 (3). pp. 183-200.

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Abstract

Proportional-integral-plus (PIP) controllers exploit the full power of optimal state variable feedback within a nonminimum state space (NMSS) setting. They are simple to implement and provide a logical extension of conventional proportional-integral/proportional-integral-derivative (PI/PID) controllers, with additional dynamic feedback and input compensators introduced automatically when the process is of greater than first order or has appreciable pure time delays. The present paper provides a tutorial introduction to the NMSS/PIP control design methodology and associated system identification procedure. The latter is based on the utilization of the simplified refined instrumental variable (SRIV) algorithm for the estimation of transfer function models. The practical utility of these techniques is illustrated by their application to the IFAC93 benchmark system, a seventh-order stochastic simulation whose parameters vary randomly within specified ranges. This benchmark provides a good simulation example for tutorial purposes, since it requires the control engineer to work through all the usual design steps, including identification of a low-order control model, control system design, and implementation using a standard programming language, in this case ‘C’. Finally, note that the statistical estimation tools described in the paper have been assembled as a tool-box within the MatlabTM software environment.

Item Type: Article
Journal or Publication Title: Transactions of the Institute of Measurement and Control
Uncontrolled Keywords: Non-minimal state space ; proportional-integral plus ; multi-objective optimisation ; IFAC93 benchmark
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Lancaster Environment Centre
Faculty of Science and Technology > Engineering
ID Code: 20274
Deposited By: ep_ss_importer
Deposited On: 22 Dec 2008 14:53
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:15
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/20274

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