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Testing Rogowski Coils with Merging Units for Smart Grids

Author

Listed:
  • Mayada Daboul

    (Department of Electrical Power Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, CZ-61600 Brno, Czech Republic)

  • Jaroslava Orságová

    (Department of Electrical Power Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, CZ-61600 Brno, Czech Republic)

  • Viktor Jurák

    (Department of Electrical Power Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, CZ-61600 Brno, Czech Republic)

  • Matěj Vrtal

    (Department of Electrical Power Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, CZ-61600 Brno, Czech Republic)

Abstract

As smart grids incorporate renewable energy sources and advanced power electronics, ensuring accurate measurement systems becomes paramount due to the increased complexity and potential sources of disturbances. This article focuses on the laboratory calibration of Rogowski coils (RCs) and merging units (MUs), which are fundamental for measuring, controlling, and monitoring digital power systems. A comprehensive digital calibration system is introduced, utilizing precise, commercially available components such as a fluxgate current transducer and a National Instrument. The system assesses magnitude and phase displacement errors under various operating conditions, including abnormal scenarios. Additionally, the impact of uncertainty sources on the measurement chain analysis is discussed, with test results conforming to established standards. This research contributes to enhancing the accuracy and reliability of measurement systems in the context of evolving smart grids.

Suggested Citation

  • Mayada Daboul & Jaroslava Orságová & Viktor Jurák & Matěj Vrtal, 2023. "Testing Rogowski Coils with Merging Units for Smart Grids," Energies, MDPI, vol. 16(21), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:21:p:7323-:d:1269692
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