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Implementation of an Asymmetric Relay Autotuner in a Sequential Control Language

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Author

  • Alfred Theorin
  • Josefin Berner

Summary, in English

Control applications contain both logic, sequencing, and control algorithms. A holistic view of this is seldom presented in teaching and papers. One reason is the separation of communities -- automation groups typically come from the Programmable Logic Controller (PLC) world while control engineers primarily come from the Distributed Control System (DCS) world. Both logic, sequencing, and control algorithms are, however, well integrated in today's control systems since DCS systems now contain logic and sequencing and PLCs now contain control algorithms. This paper shows that both logic, sequencing, and control algorithms can be integrated seamlessly in a sequential control language. The particular application considered is a PID controller with a relay autotuner. The presented autotuner implementation yields good controller parameters and is freely available.

Publishing year

2015

Language

English

Pages

874-879

Publication/Series

IEEE Xplore

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Control Engineering

Conference name

IEEE International Conference on Automation Science and Engineering (IEEE CASE 2015)

Conference date

2015-08-24 - 2015-08-28

Status

Published

Project

  • Automatic Tuning
  • PID Control

Research group

  • LCCC

ISBN/ISSN/Other

  • ISSN: 2161-8089
  • ISSN: 2161-8070
  • ISBN: 978-1-4673-8183-3