Guaranteed stable PID controller tuning rules for First-Order Dead-time Unstable Processes

Nandong, Jobrun

doi:10.1109/ICIEA.2015.7334334

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Authors

Nandong, Jobrun

Date

2015

Type

Conference Paper

Metadata

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Citation

Nandong, J. 2015. Guaranteed stable PID controller tuning rules for First-Order Dead-time Unstable Processes, in 10th Conference on Industrial Electronics and Applications (ICIEA), pp. 1443-1448: IEEE.

Source Title

2015 IEEE 10th Conference on Industrial Electronics and Applications (ICIEA 2015)

Source Conference

2015 IEEE 10th Conference on Industrial Electronics and Applications (ICIEA)

DOI

10.1109/ICIEA.2015.7334334

ISBN

978-1-4799-8467-1

School

Curtin Sarawak

URI

http://hdl.handle.net/20.500.11937/18848

Collection

Curtin Research Publications

Abstract

An open-loop unstable process with dead-time is commonly encountered in process industry. A PID controller design that can provide both closed-loop stability and good performance-robustness tradeoffs is difficult to accomplish for the unstable process compared with that for the stable one. In this paper, a set of PID tuning rules for the First-Order Dead-time Unstable Process (FODUP) is proposed. These rules ensure the attainment of simultaneous closed-loop stability and good performance-robustness tradeoffs. Some correlations are also presented to facilitate with the setpoint pre-filter design for suppressing excessively high overshoot caused by a step change in the setpoint. Numerical studies confirm the effectiveness of the proposed rules. © 2015 IEEE.