Work

Control of a Liquid Level System Based on a Proportional-Sum Controller Using Whale Optimizer

Year: 2025

Type: conference-paper

Abstract: This study is about controlling the liquid level in water tanks, which is one of the challenges in the industry.A nonlinear analytical model is derived and validated against linearized continuous-time and discrete-time models, demonstrating their equivalence under nominal conditions.The classical method for tuning a discrete-time proportional-sum controller was applied, with gains tuned via the Ziegler-Nichols method.Additionally, the controller's parameters were fine-tuned by using the whale optimization algorithm.Simulation results for the tank system are presented.While Ziegler-Nichols gives a decent base, it can be said that optimization of the controller parameters should be recommended when dealing with similar problems in real-life situations.Results reveal that the optimized controller reduces the sum of squared errors compared to the classical controller, achieving superior accuracy.

Source: International Scientific Conference Sinteza

DOI: 10.15308/sinteza-2025-63-70

Authors: Vladimir Zarić, Natalija Perišić, Mitra Vesović, Radiša Jovanović

Institution: University of Belgrade

Language: English

Topic: Advanced Control Systems Design

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja

Award: G6598131916