On-line frequency domain identification and genetic tuning of PID controllers

Jones A., Ajlouni N., UZAM M.

1996 IEEE Conference on Emerging Technologies and Factory Automation (ETFA 96), Hawaii, United States Of America, 18 - 21 November 1996, pp.261-266 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • City: Hawaii
  • Country: United States Of America
  • Page Numbers: pp.261-266
  • Yozgat Bozok University Affiliated: No


Techniques making use of genetic algorithms are proposed as a means of tuning PID controllers to provide prescribed gain and phase margins. In particular, it is shown that to implement the proposed tuning technique only limited frequency response data is required and that this may be readily obtained from simple on-line tests using a relay and simple time-delayed control. An illustrative example of the practical application of the method is provided in which a process control system is genetically tuned to a specified gain and phase margin.