Relay Feedback Based Improved Critical Point Estimation for Process Control Systems

  • D. Simhachalam
  • S. Talukder
  • R. K. Mudi
Conference paper
Part of the Communications in Computer and Information Science book series (CCIS, volume 250)

Abstract

Relay feedback auto-tuning test is used for estimation of critical point i.e. ultimate gain and ultimate period for designing process control systems. An experimental technique is proposed for improved estimation of the critical point by conducting the relay feedback test for two different hysteresis bands. Simulation results show that the critical point estimation by our proposed method is superior to standard relay feedback method, and very close to the actual one. Usefulness of the proposed method is demonstrated through close-loop control performance for both set-point change and load disturbance.

Keywords

Process Control System Internal Model Control Load Disturbance Controller Tuning Relay Feedback 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • D. Simhachalam
    • 1
  • S. Talukder
    • 1
  • R. K. Mudi
    • 1
  1. 1.Dept. of Instrumentation & Electronics EnggJadavpur UniversityKolkataIndia

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