IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v18y2025i4p983-d1593916.html
   My bibliography  Save this article

A Comparative Study Between Synchrophasor-Measurement-Based Linear and Nonlinear State Estimation in Power Systems

Author

Listed:
  • Ali Aljazaeri

    (Faculty of Electrical Engineering and Communication, Brno University of Technology, 60200 Brno, Czech Republic)

  • Petr Toman

    (Faculty of Electrical Engineering and Communication, Brno University of Technology, 60200 Brno, Czech Republic)

  • Obed Muhayimana

    (Faculty of Electrical Engineering and Communication, Brno University of Technology, 60200 Brno, Czech Republic)

Abstract

The evolution of phasor measurement units (PMUs) marked a significant development in the field of electrical engineering. The integration of PMU-based linear state estimators or the augmentation of SCADA measurements with PMU measurements has emerged as a promising solution to address the limitations of conventional state estimation. The utilization of PMU measurements has been demonstrated to effectively address measurement errors, leading to the precise determination of the system’s state within a single iteration. This article provides a comprehensive discussion of both linear and nonlinear state estimation computational processes. A comparative analysis is conducted to assess their performance. PMU-based state estimator models are proposed based on different PMU locations and are further examined under abnormal conditions. The results are compared with the simulated results from a Simulink PSCAD model of the IEEE 14-bus system to ensure validation. The test results demonstrated that the proposed models outperformed the conventional model in terms of robustness and accuracy. The estimated and simulated states matched during both normal and abnormal conditions, demonstrating the model’s capability to track sudden changes in voltage profiles. This article promotes further investigations to develop new control and protection functions using this model.

Suggested Citation

  • Ali Aljazaeri & Petr Toman & Obed Muhayimana, 2025. "A Comparative Study Between Synchrophasor-Measurement-Based Linear and Nonlinear State Estimation in Power Systems," Energies, MDPI, vol. 18(4), pages 1-24, February.
  • Handle: RePEc:gam:jeners:v:18:y:2025:i:4:p:983-:d:1593916
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/18/4/983/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/18/4/983/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Leila Kamyabi & Tek Tjing Lie & Samaneh Madanian & Sarah Marshall, 2024. "A Comprehensive Review of Hybrid State Estimation in Power Systems: Challenges, Opportunities and Prospects," Energies, MDPI, vol. 17(19), pages 1-20, September.
    2. Henrry Moyano & Luis Vargas, 2024. "The Efficiency of the Kalman Filter in Nodal Redundancy," Energies, MDPI, vol. 17(9), pages 1-20, April.
    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.

      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:jeners:v:18:y:2025:i:4:p:983-:d:1593916. 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.