Design of Disturbance Observer-Based Robust Speed Control Structure for Two-Mass Drive System with the Help of Birch Optimization Algorithm

Amanuel Haftu Kahsay, Piotr Derugo, Krzysztof Szabat () and Seiichiro Katsura
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Amanuel Haftu Kahsay: Faculty of Electrical Engineering, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Piotr Derugo: Faculty of Electrical Engineering, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Krzysztof Szabat: Faculty of Electrical Engineering, Wrocław University of Science and Technology, PL50370 Wrocław, Poland
Seiichiro Katsura: Department of System Design Engineering, Keio University, Yokohama 223-8522, Japan

Energies, 2025, vol. 18, issue 8, 1-24

Abstract: The paper proposes a Birch-inspired optimisation algorithm designed to optimise the PI controller gain and additional feedback coefficients used for robust speed control of a two-mass drive system. The technical issue we considered is torsional oscillation suppression in a two-mass drive system using a robust speed controller. To address this, we used a cascade control structure with additional feedback from torsional torque and its derivative. Since this torque is difficult to measure, a second-order integral disturbance observer was implemented. The integral type of the observer offers lower noise compared to classical derivative solutions. To tune the system, a Birch-inspired Optimization Algorithm was used. The tuned system has been verified through both MATLAB/Simulink environment and experimental verification, demonstrating the robustness and accuracy of the solution.

Keywords: birch optimization; integral disturbance observer; torsional oscillations suppression; electric drive (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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