Simulation-Based Study of Structural Changes in Electrical Time-Series Signals

Authors

DOI:

https://doi.org/10.18690/jet.18.2.75-84.2025

Keywords:

break points, energy system , noise , segmentation , signals , simulation , time series

Abstract

This paper addresses the detection of changes in electrical signals typical for industrial and power systems, using statistical indicators. A dedicated MATLAB algorithm was developed to identify change points by tracking shifts in signal behavior and statistical properties. To evaluate the method, synthetic signals were generated through simulation to reproduce common patterns observed in these systems, allowing testing under different operating conditions and varying noise levels. The results demonstrate that the algorithm reliably detects change points across multiple scenarios, showing both flexibility and robustness. This study highlights the value of simulation-based signal generation as a controlled environment for testing detection methods and provides a foundation for future application to more complex real-world electrical signal analysis tasks.

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Author Biographies

  • Luka Živković, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

    Assistant, Chair of Fundamentals of Electrical Engineering and Measurements. Osijek. Croatia.

    E-mail: luka.zivkovic@ferit.hr

  • Željko Hederić, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

    Head of the Department of Electromechanical Engineering, Full Professor (Faculty of Electrical Engineering, Computer Science and Information Technology Osijek), Head of Research Laboratory for Hybrid Electric Drives. 

    Osijek, Croatia. E-mail: zeljko.hederic@ferit.hr

  • Tin Benšić, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

    Assistant Professor, Chair of Fundamentals of Electrical Engineering and Measurements.

    Osijek, Croatia. E-mail: tin.bensic@ferit.hr

  • Goran Kurtović, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek

    Senior Laboratory Technician, Chair of Electric Machines and Power Electronics.

    Osijek, Croatia. E-mail: goran.kurtovic@ferit.hr

  • Marinko Stojkov, University of Slavonski Brod, Mechanical Engineering Faculty

    Full Professor (Department for Energetics).

    Osijek, Croatia. E-mail: mstojskov@unisb.hr

References

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Published

29.09.2025

Issue

Vol. 18 No. 2 (2025): September 2025

Section

Articles

License

Copyright (c) 2025 University of Maribor, University of Maribor Press

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Živković, L., Hederić, Željko, Benšić, T., Kurtović, G., & Stojkov, M. (2025). Simulation-Based Study of Structural Changes in Electrical Time-Series Signals. Journal of Energy Technology, 18(2), 75-84. https://doi.org/10.18690/jet.18.2.75-84.2025