Authors

Le Kong, Yaosuo Xue, Liang Qiao, Fei Wang

Abstract

In this article, a passivity-based virtual oscillator control strategy with enhanced synchronization stability for grid-forming inverters (GFMs) is proposed. By adopting the port-controlled Hamiltonian system theory for orbital stabilization problems, an energy pumping-and-damping block is proposed to render GFMs globally asymptotically stable with respect to the prespecified solutions of the power-flow equations from any initial condition. This allows for stable integrations of GFMs to any other globally asymptotically stable systems without their explicit knowledge, e.g., helping maintain synchronism with the bulk power system in a wide range of short-circuit-ratio conditions or under large disturbances and keeping synchronism among multiple GFMs in power systems. Both simulations and experiments are presented to demonstrate the proposed control approach.

Citation

  • Journal: IEEE Transactions on Power Electronics
  • Year: 2022
  • Volume: 37
  • Issue: 12
  • Pages: 14141–14156
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • DOI: 10.1109/tpel.2022.3187402

BibTeX

@article{Kong_2022,
  title={{Enhanced Synchronization Stability of Grid-Forming Inverters With Passivity-Based Virtual Oscillator Control}},
  volume={37},
  ISSN={1941-0107},
  DOI={10.1109/tpel.2022.3187402},
  number={12},
  journal={IEEE Transactions on Power Electronics},
  publisher={Institute of Electrical and Electronics Engineers (IEEE)},
  author={Kong, Le and Xue, Yaosuo and Qiao, Liang and Wang, Fei},
  year={2022},
  pages={14141--14156}
}

Download the bib file

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