Studies on Closed-loop Interaction in a Multi-loop Single Tank Control System

  • Authors

    • Abhijeet Chourdhary
    • Amit Jain
  • MIMO Process, Relative Gain Array, Step Test Method, Simulink
  • This paper investigates the interaction between level and flow loop in a single tank system. The data generated is used to generate all transfer functions via step test method. The model generated is then simulated on MATLAB-Simulink and the obtained results are then compared with experimental results for verification. A Relative Gain Array analysis is performed to check the interaction and comment on the pairing.



  • References

    1. [1] Gerardo Gabriel Acosta, Miguel Angel Mayosky, and Jose´ Maria Catalfo (1994). “An expert PID controller uses refined Ziegler and Nichols rules and fuzzy logic ideasâ€. Applied Intelligence 4 (1), pp. 53–66. ISSN: 1573-7497. DOI: 10.1007/BF00872055. URL:

      [2] Apex. Universal Process Control Trainer Manual. Apex Innovations Pvt. Ltd., 2012.

      [3] Thomas Mc Avoy, Yaman Arkun, Rong Chen, Derek Robinson and P David Schnelle (2003). “A new approach to defining a dynamic relative gainâ€. Control Engineering Practice 11 (8), pp. 907-914. DOI:

      [4] Jean Pierre Gagnepain and Dale E. Seborg (1982). “Analysis of process interactions with applications to multiloop control system designâ€. In: Industrial & Engineering Chemistry Process Design and Development 21 (1), pp. 5–11. DOI:10.1021/i200016a002.

      [5] Tao Liu, Weidong Zhang, and Danying Gu (2005). “Analytical multi-loop PI/PID controller design for 2x2 processes with Time Delaysâ€. Industrial & Engineering Chemistry Research 44 (6), pp. 1832–1841. DOI: 10.1021/ie0493715.

      [6] Dale E Seborg, Thomas F. Edgar, and Dunkan A. Mellichamp (2008). Process Dynamics and Control. 2nd Edition. John Wiley Sons, Inc.

      [7] J.G. Ziegler and N.B. Nichols (1993). “Optimum Setting for Automatic Controllersâ€. pp. 759–768.

      [8] K.J. Astrom and T. Hugglund (2004). “Revisiting the Ziegler-Nichols step response method for PID controlâ€. Journal of Process Control 14 (6), pp. 635-650. DOI: j.jprocont.2004.01.002.

  • Downloads

  • How to Cite

    Chourdhary, A., & Jain, A. (2018). Studies on Closed-loop Interaction in a Multi-loop Single Tank Control System. International Journal of Engineering & Technology, 7(3.26), 38-41.