The Design of a Microcontroller-based Automatic Liquid Level Control System

  • Authors

    • Saleh Ahmad Abu Dhabi Polytechnic
    • Abd Al Rahman Abu Ebayyeh Brunel University London
    • Abdulaziz Alhashmi Abu Dhabi Polytechnic
    2019-12-15
    https://doi.org/10.14419/ijet.v8i4.21273
  • Liquid Level Control, ON/OFF Controller, PID Controller, MATLAB GUI.

  • In this paper, a liquid level control system was designed and fabricated. Control of the liquid level was accomplished by adjusting the sup-ply voltage to a centrifugal pump that is delivering the liquid from a reservoir tank to an upper tank. The liquid level control system was implemented on an ATmega328 microcontroller. Three control strategies are implemented, manual mode, ON/OFF controller, and PID controller. Serial communication is used to establish the communication between the ATmega328 and a computer running MATLAB soft-ware. A graphical user interface was constructed to allow users to interact with the system. The system model is obtained using an experi-mental approach. The obtained model is then used for the design of the PID controller. Experimental results are provided to highlight the performance of the implemented controllers.

     

     

  • References

    1. [1] J. D. Wagoner, N. F. Macia, “Automatic Liquid Level Controller Using A LabVIEW Based Pcâ€, Department of Electronics & Computer Technology Arizona State University East.

      [2] T. Cheung, “Liquid-Level Control in Single Tanks and Cascades of Tanks with Proportional-Only and Proportional-Integral Feedback Controllersâ€, Industrial & Engineering Chemistry Fundamentals, 1979 18 (1), 15-21 https://doi.org/10.1021/i160069a004.

      [3] M. Lee, J. Shin, “Constrained optimal control of liquid level loop using a conventional proportional-integral controllerâ€, Taylor and Francis, Chem. Eng. Commun. vol. 196, pp. 729–745, 2009. https://doi.org/10.1080/00986440802557393.

      [4] L. Yu, W. Liu, and H. Wu, “Automatic Liquid Level Detection System Based on LabVIEWâ€, Advanced Materials Research, 605-607, pp.1772-1775, 2012. https://doi.org/10.4028/www.scientific.net/AMR.605-607.1772.

      [5] R. Paul, A. Sengupta, R. R. Pathak, “Wavelet based denoising technique for liquid level systemâ€, Measurement, vol. 46, pp. 1979–1994, 2013. https://doi.org/10.1016/j.measurement.2013.02.004.

      [6] B. N. Getu and H. A. Attia, "Automatic water level sensor and controller system," 2016 5th International Conference on Electronic Devices, Systems and Applications (ICEDSA), Ras Al Khaimah, pp. 1-4, 2016. https://doi.org/10.1109/ICEDSA.2016.7818550.

      [7] A. Piazzi and A. Visioli, “A Noncausal Approach for PID controlâ€, Journal of Process Control, 4 March 2006. https://doi.org/10.1016/j.jprocont.2006.03.001.

      [8] M. A. Fellani and A. M. Gabaj, “PID controller design for two tanks liquid level control system using MATLAB", International Journal of Electrical and Computer Engineering (IJECE), vol. 5, ISSN 2088-8708, p. 336-342, 2015.

      [9] S. Panda, B.K. Sahu, P.K. Mohanty, “Design and performance analysis of PID controller for an automatic voltage regulator system using simplified particle swarm optimizationâ€, Journal of the Franklin Institute, Volume 349, Issue 8, 2012, Pages 2609-2625, ISSN 0016-0032. https://doi.org/10.1016/j.jfranklin.2012.06.008.

      [10] S. Kumar, R. Negi, “A comparative study of PID tuning methods using anti-windup controllerâ€, Power Control and Embedded Systems (ICPCES) 2012 2nd International Conference on, pp. 1-4, 2012. https://doi.org/10.1109/ICPCES.2012.6508138.

      [11] D. K. Sambariya, R. Prasad and D. Birla, “Design and performance analysis of PID based controller for SMIB power system using Firefly algorithmâ€, 2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS), Chandigarh, 2015, pp. 1-8.. https://doi.org/10.1109/RAECS.2015.7453394.

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    Ahmad, S., Al Rahman Abu Ebayyeh, A., & Alhashmi, A. (2019). The Design of a Microcontroller-based Automatic Liquid Level Control System. International Journal of Engineering & Technology, 8(4), 636-641. https://doi.org/10.14419/ijet.v8i4.21273