IDEAS home Printed from https://ideas.repec.org/a/gam/jmathe/v13y2025i3p341-d1573145.html
   My bibliography  Save this article

System Identification of a Servo-Valve Controlled Hydraulic Cylinder Operating Under Variable Load

Author

Listed:
  • Daniel Catalin Stroita

    (Department of Mechanical Machines, Machinery and Transport, Faculty of Mechanical Engineering, Politehnica University of Timisoara, Bulevardul Mihai Viteazu, No. 1, 300222 Timisoara, Romania)

  • Dorin Bordeasu

    (Department of Automation and Applied Informatics, Politehnica University of Timisoara, Vasile Parvan, No. 2, 300223 Timisoara, Romania)

  • Florin Dragan

    (Department of Automation and Applied Informatics, Politehnica University of Timisoara, Vasile Parvan, No. 2, 300223 Timisoara, Romania)

Abstract

This work presents an in-depth study on the system identification of a servo-valve controlled hydraulic cylinder operating under variable load. This research addresses the growing demand for improved control systems (enhancing time response, settling time, and precision) in variable load hydraulic actuators, such as those used in blade pitching systems of wind turbines. The paper begins by detailing the experimental setup, followed by the development of the system’s mathematical model, a fourth-order transfer function (TF). The experimental data collected by a proposed data acquisition system are used for the dynamic identification of the hydraulic setup using periodical signals as commands. All possible combinations of TFs up to order 8 are identified. After an initial visual preselection of the 15 most accurate ones, analyses comparing quality indicators between the measured (experimental) and the TF (simulated) step and sinusoidal responses are conducted to determine the most accurate TF. The paper concludes with the presentation and analysis of the dynamic model, identified as being a fourth-order TF, which replicates the system dynamics with the greatest fidelity. It provides an identification methodology with significant potential for industry practitioners aiming to improve, optimize, and enhance control strategies for variable load hydraulic actuators.

Suggested Citation

  • Daniel Catalin Stroita & Dorin Bordeasu & Florin Dragan, 2025. "System Identification of a Servo-Valve Controlled Hydraulic Cylinder Operating Under Variable Load," Mathematics, MDPI, vol. 13(3), pages 1-24, January.
    • Handle: RePEc:gam:jmathe:v:13:y:2025:i:3:p:341-:d:1573145
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2227-7390/13/3/341/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2227-7390/13/3/341/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Kristiana Dolge & Dagnija Blumberga, 2023. "Transitioning to Clean Energy: A Comprehensive Analysis of Renewable Electricity Generation in the EU-27," Energies, MDPI, vol. 16(18), pages 1-27, September.
    2. Barter, Garrett E. & Sethuraman, Latha & Bortolotti, Pietro & Keller, Jonathan & Torrey, David A., 2023. "Beyond 15 MW: A cost of energy perspective on the next generation of drivetrain technologies for offshore wind turbines," Applied Energy, Elsevier, vol. 344(C).
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Arkadiusz Małek & Agnieszka Dudziak & Andrzej Marciniak & Tomasz Słowik, 2025. "Designing a Photovoltaic–Wind Energy Mix with Energy Storage for Low-Emission Hydrogen Production," Energies, MDPI, vol. 18(4), pages 1-23, February.
    2. Laeeq Aslam & Runmin Zou & Ebrahim Shahzad Awan & Sayyed Shahid Hussain & Kashish Ara Shakil & Mudasir Ahmad Wani & Muhammad Asim, 2025. "Hardware-Centric Exploration of the Discrete Design Space in Transformer–LSTM Models for Wind Speed Prediction on Memory-Constrained Devices," Energies, MDPI, vol. 18(9), pages 1-21, April.
    3. Cheng Zhang & Liufei Shen & Xingzheng Wu & Feiyue Shan & Long Chen & Shuai Liu & Zhiqiang Zheng & Litong Zhu & Jinduo Wang & Yujia Zhai, 2025. "Review of Offshore Superconducting Wind Power Generation for Hydrogen Production," Energies, MDPI, vol. 18(8), pages 1-23, April.
    4. Mao, Yufeng & Zhong, Mingliang & Wang, Ji X., 2023. "Dimensionless study of phase-change-based thermal protection for pulsed electromagnetic machines: Towards heat absorption-dissipation matching," Applied Energy, Elsevier, vol. 352(C).
    5. Popa, Dan-Cristian & Szabó, Loránd, 2025. "Overcoming Catch-22 for rare earth metals in green transition: Solutions in electrical machine manufacturing," Renewable and Sustainable Energy Reviews, Elsevier, vol. 207(C).
    6. Dariusz Masłowski & Małgorzata Dendera-Gruszka & Julia Giera & Ewa Kulińska & Krzysztof Olejnik & Justyna Szumidłowska, 2024. "Risks and Challenges of Oversized Transport in the Energy Industry," Energies, MDPI, vol. 17(24), pages 1-20, December.
    7. Adriana Veronica Litră & Eliza Nichifor & Ioana Bianca Chiţu & Alexandra Zamfirache & Gabriel Brătucu, 2023. "The Dilemma of the European Integration Principle—Ensuring Energy Independence of the European Union," Sustainability, MDPI, vol. 15(21), pages 1-19, November.
    8. Wu, Zhou & Yang, Hanshi & Liu, Jiepeng & Feng, Liang & Qi, Hongtuo & Zhang, Yongfeng & Yang, Zhile, 2025. "An integrated design framework of floating wind turbine based on surrogate-assisted many-objective optimization," Energy, Elsevier, vol. 315(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jmathe:v:13:y:2025:i:3:p:341-:d:1573145. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.