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Modeling of German Low Voltage Cables with Ground Return Path

Author

Listed:
  • Johanna Geis-Schroer

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany
    These authors contributed equally to this work.)

  • Sebastian Hubschneider

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany
    These authors contributed equally to this work.)

  • Lukas Held

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany
    These authors contributed equally to this work.)

  • Frederik Gielnik

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany)

  • Michael Armbruster

    (Stadtwerke Buehl GmbH, 77815 Buehl, Germany)

  • Michael Suriyah

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany)

  • Thomas Leibfried

    (Institute of Electrical Energy Systems and High-Voltage Technology (IEH), Karlsruhe Institute of Technology (KIT), 76137 Karlsruhe, Germany)

Abstract

In this contribution, measurement data of phase, neutral, and ground currents from real low voltage (LV) feeders in Germany is presented and analyzed. The data obtained is used to review and evaluate common modeling approaches for LV systems. An alternative modeling approach for detailed cable and ground modeling, which allows for the consideration of typical German LV earthing conditions and asymmetrical cable design, is proposed. Further, analytical calculation methods for model parameters are described and compared to laboratory measurement results of real LV cables. The models are then evaluated in terms of parameter sensitivity and parameter relevance, focusing on the influence of conventionally performed simplifications, such as neglecting house junction cables, shunt admittances, or temperature dependencies. By comparing measurement data from a real LV feeder to simulation results, the proposed modeling approach is validated.

Suggested Citation

  • Johanna Geis-Schroer & Sebastian Hubschneider & Lukas Held & Frederik Gielnik & Michael Armbruster & Michael Suriyah & Thomas Leibfried, 2021. "Modeling of German Low Voltage Cables with Ground Return Path," Energies, MDPI, vol. 14(5), pages 1-34, February.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:5:p:1265-:d:505685
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    Citations

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    Cited by:

    1. Ferréol Binot & Trung Dung Le & Marc Petit, 2021. "Characterization and Modeling of LV Cables Considering External Parameters for Distribution Networks," Energies, MDPI, vol. 14(23), pages 1-29, November.
    2. Lukas Held & Felicitas Mueller & Sina Steinle & Mohammed Barakat & Michael R. Suriyah & Thomas Leibfried, 2021. "An Optimal Power Flow Algorithm for the Simulation of Energy Storage Systems in Unbalanced Three-Phase Distribution Grids," Energies, MDPI, vol. 14(6), pages 1-34, March.

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