| Issue |
E3S Web Conf.
Volume 616, 2025
2nd International Conference on Renewable Energy, Green Computing and Sustainable Development (ICREGCSD 2025)
|
|
|---|---|---|
| Article Number | 03016 | |
| Number of page(s) | 9 | |
| Section | Sustainable Development | |
| DOI | https://doi.org/10.1051/e3sconf/202561603016 | |
| Published online | 24 February 2025 | |
Performance Comparison of PI Controllers for Conical Tank Process Using Various Tuning Methods
1,2 Department of EIE, CVR College of Engineering, Telangana, India
3 Department of EIE, Vignana Jyothi Institute of Engineering and Technology, Hyderabad, India
4 Department of ECE, Guru Nanak Institutions Technical Campus, Hyderabad, India
* Corresponding author: harivardhagini@gmail.com
Maintaining liquid levels in non-linear systems like conical tanks is critical for industrial processes, as these tanks, commonly used for handling slurries and viscous fluids, exhibit varying dynamics due to their changing cross-sectional area. This paper explores the design and evaluation of Proportional-Integral (PI) controllers for regulating liquid levels in such tanks, where the liquid rise rate decreases with height, causing varying time constants and system gains. Several tuning methods, including Ziegler-Nichols, Cohen-Coon, Chien Hrones Reswick (CHR), and Kappa-Tau, are applied and assessed based on metrics like settling time, overshoot, and steady-state error. The comparative analysis offers valuable insights into optimizing control performance for non-linear systems, addressing the unique challenges posed by conical tanks, and providing practical guidance for industrial applications.
Key words: Conical tank / Non-linear process / PI controller / Tuning methods / Ziegler-Nichols / Cohen-Coon / CHR tuning / Kappa-Tau / Liquid level control / Performance comparison / Process control
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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