Genetic tuning scheme of PID parameters for first-order systems with large dead times

Yasue Mitsukura, Toru Yamamotq, Masahiro Kaneda

Research output: Contribution to journalArticle

Abstract

PID control schemes have been widely used in most of process control systems. Most of these processes are often treated as first-order systems with dead times. And also, in many cases, PID parameters are usually tuned based on the process parameters, i.e., the time constant, the dead time and the process gain. However, since these process parameters can not be obtained exactly, it is well known that it is difficult to find the suitable PID parameters in practice. In this paper, we propose a genetic tuning scheme of PID parameters for first-order systems with large dead times. The authors have already proposed a tuning method of PID parameters using a genetic algorithm (GA), which was based on the relationship between PID control and generalized minimum variance control(GMVC) laws. In practice, for large dead time systems, first-order low pass pre-filters are often used. The proposed method is an extended version of the previously proposed method mentioned above to the system with a pre-filter due to the large dead time, i.e., a tuning method of both PID parameters and the pre-filter using a GA. The proposed control scheme is numerically evaluated on some simulation examples.

Original languageEnglish
Pages (from-to)740-745
Number of pages6
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE83-A
Issue number4
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

First-order System
Tuning
Three term control systems
Genetic algorithms
PID Control
Process Parameters
Filter
Process control
Genetic Algorithm
Generalized Variance
Minimum Variance
Control systems
Time Constant
Process Control
Control System
Simulation

Keywords

  • Generalized minimum variance control
  • Genetic algorithm
  • PID control
  • Process control

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture
  • Information Systems

Cite this

Genetic tuning scheme of PID parameters for first-order systems with large dead times. / Mitsukura, Yasue; Yamamotq, Toru; Kaneda, Masahiro.

In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E83-A, No. 4, 2000, p. 740-745.

Research output: Contribution to journalArticle

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