Tuning PID control of an automatic arc welding system using a SMAW process

Yan Wen Huang, Pi Cheng Tung, Cheng Yu Wu

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A new method to tune the gains of the proportional integral derivative (PID) controller for alternating current shield metal arc welding (SMAW) of automatic arc welding system using a SMAW process is presented in this paper. This method used the genetic algorithm (GA) approach to optimize the gains of the PID auto-tuner and considerably modulated the rate of an electrode feed mechanism that regulates arc current. The proposed controller was verified by simulation and experiments of the transient response in the automatic arc welding system. Finally, the performance indices of the proposed controller are compared with that based on Ziegler-Nichols tuning rules.

Original languageEnglish
Pages (from-to)56-61
Number of pages6
JournalInternational Journal of Advanced Manufacturing Technology
Volume34
Issue number1-2
DOIs
StatePublished - Aug 2007

Keywords

  • Electrode feed
  • Genetic algorithm
  • PID controller
  • Shielded metal arc welding (SMAW)

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