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Impact of Control Loops on the Passivity Properties of Grid-Forming Converters with Fault-Ride through Capability

Author

Listed:
  • Mebtu Beza

    (Department of Electric Power Engineering, Chalmers University of Technology, Hörsalsvägen 11, 412 96 Gothenburg, Sweden)

  • Massimo Bongiorno

    (Department of Electric Power Engineering, Chalmers University of Technology, Hörsalsvägen 11, 412 96 Gothenburg, Sweden)

  • Anant Narula

    (Department of Electric Power Engineering, Chalmers University of Technology, Hörsalsvägen 11, 412 96 Gothenburg, Sweden)

Abstract

Due to the increasing integration of renewable energy sources (RES) and a corresponding reduction of conventional generating units, there is nowadays a demand from the power-electronic converters to provide grid-forming properties through proper control of the converter systems. This paper aims to evaluate the impact of various control loops in a grid-forming control strategy equipped with a fault-ride through capability on the passivity properties of the converter system. Through the analysis of the frequency-dependent input admittance of the converter, the main factors affecting the passivity properties are identified. A simplified analytical model is derived in order to propose possible control modifications to enhance the system’s passivity at various frequencies of interest and the findings are validated through detailed time-domain simulations and experimental tests.

Suggested Citation

  • Mebtu Beza & Massimo Bongiorno & Anant Narula, 2021. "Impact of Control Loops on the Passivity Properties of Grid-Forming Converters with Fault-Ride through Capability," Energies, MDPI, vol. 14(19), pages 1-14, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:19:p:6036-:d:640851
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    References listed on IDEAS

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    1. Ishita Ray, 2021. "Review of Impedance-Based Analysis Methods Applied to Grid-Forming Inverters in Inverter-Dominated Grids," Energies, MDPI, vol. 14(9), pages 1-18, May.
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    Cited by:

    1. Efaf Bikdeli & Md. Rabiul Islam & Md. Moktadir Rahman & Kashem M. Muttaqi, 2022. "State of the Art of the Techniques for Grid Forming Inverters to Solve the Challenges of Renewable Rich Power Grids," Energies, MDPI, vol. 15(5), pages 1-25, March.

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