Title: Optimising liquid level in a spherical two tank interacting system with fractional order PID control via hybrid POA-RERNN approach

Authors: P.E. Kamalakkannan; B. Vinoth Kumar; M. Kalamani

Addresses: Department of Electrical and Electronics Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore, 642003, Tamil Nadu, India ' Department of Electrical and Electronics Engineering, Dr. Mahalingam College of Engineering and Technology, Pollachi, Coimbatore, 642003, Tamil Nadu, India ' Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Arasur, Coimbatore, 641407, Tamil Nadu, India

Abstract: This paper proposes a hybrid technique for liquid level in a spherical two tank system. Of the three controllers, the fractional-order internal model controller (FOIMC) was tuned using the proposed fractional-order proportional integral derivative (FOPID) controller in an interacting system (TTSIS). Recalling-enhanced recurrent neural network (RERNN) and pelican optimisation algorithm (POA) combined performance is the proposed hybrid technique. The FOPID controller is used to control the system's level. The hybrid approach that has been proposed tunes the FOPID's ideal gain parameter. The proposed method's performance is evaluated using the MATLAB site and contrasted with other methods that are currently in use, such as the whale optimisation algorithm (WOA), particle swarm optimisation (PSO), and Salp swarm algorithm (SSA). After analysing the control efforts (errors) and robustness, it is determined that the proposed approach has better robustness than the current methods and requires less control effort overall.

Keywords: spherical two tank system; liquid level control; tank surface area and height; non-linear system; FOPID controller; optimal gain.

DOI: 10.1504/IJHVS.2025.145132

International Journal of Heavy Vehicle Systems, 2025 Vol.32 No.2, pp.163 - 188

Received: 06 Dec 2023
Accepted: 11 Mar 2024
Published online: 20 Mar 2025 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article