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A Comparative Analysis of a Power System Stability with Virtual Inertia

Author

Listed:
  • Lavr Vetoshkin

    (Department of Electrical Power Engineering, Czech Technical University, 166 27 Prague, Czech Republic)

  • Zdeněk Müller

    (Department of Electrical Power Engineering, Czech Technical University, 166 27 Prague, Czech Republic)

Abstract

The paper investigates the stability of a power system with synchronverters. A synchronverter is a control strategy for voltage source converters that introduces virtual inertia by mimicking synchronous machines. The authors picked a commonly known IEEE 9 bus and IEEE 39 bus test case systems for the test case studies. The paper presents the power system’s modal analysis with Voltage Source Converters (VSCs) controlled as synchronverters, vector control, or Rate of Change of Frequency-based Virtual Synchronous Generator, thus comparing different approaches to VSC control. The first case study compares selected control algorithms, the IEEE 9 bus system, with one VSC in the paper. The results demonstrate the benefits of synchronverters over other control strategies. The system with synchronverters has a higher minimal damping ratio, which is proven to be the case by numerical simulations. In the second case study, the effects of virtual inertia placement were investigated. The computations showed that placement is indeed important, however, the control strategy is as important. Besides, the system with synchronverters exhibits better stability characteristics. The paper demonstrates that the application of synchronverters is feasible and can meet the demand for algorithms that bring the benefits of virtual inertia.

Suggested Citation

  • Lavr Vetoshkin & Zdeněk Müller, 2021. "A Comparative Analysis of a Power System Stability with Virtual Inertia," Energies, MDPI, vol. 14(11), pages 1-20, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:11:p:3277-:d:568484
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    References listed on IDEAS

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    1. Meysam Saeedian & Bahram Pournazarian & S. Sajjad Seyedalipour & Bahman Eskandari & Edris Pouresmaeil, 2020. "Emulating Rotational Inertia of Synchronous Machines by a New Control Technique in Grid-Interactive Converters," Sustainability, MDPI, vol. 12(13), pages 1-15, July.
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    Cited by:

    1. Juan Segundo Ramírez & Josué Hernández Ramírez & Nancy Visairo Cruz & Rafael Peña Gallardo, 2022. "Bifurcation Stability Analysis of the Synchronverter in a Microgrid," Energies, MDPI, vol. 15(21), pages 1-19, October.
    2. Dušan Medveď & Michal Kolcun & Marek Pavlík & Ľubomír Beňa & Marián Mešter, 2021. "Analysis of Prosumer Behavior in the Electrical Network," Energies, MDPI, vol. 14(24), pages 1-20, December.

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