A Port-Hamiltonian Droop Control for Grid-Forming Inverters

Authors

Alejandro Garcés-Ruíz, Manuel Bravo-López, Pedro Rodriguez

Abstract

Modern power systems include inverter-based resources that may reduce equivalent inertia, resulting in instability issues. A common way to add inertia is by increasing the energy storage capacity in each inverter. Although viable, this option may be expensive in practice. This article proposes a new approach to improve stability in grid-forming inverters. The conventional droop of frequency/power is equipped with additional angle feedback based on the port-Hamiltonian structure of the dynamic system. Phasor-measurement units allow this type of control. The control proofs to be asymptotically stable for a single-inverter infinite bus system. Simulation results under different fault conditions demonstrate a superior performance of the proposed control compared to a conventional droop.

Citation

• Journal: 2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe)
• Year: 2023
• Volume:
• Issue:
• Pages: 1–6
• Publisher: IEEE
• DOI: 10.23919/epe23ecceeurope58414.2023.10264505

BibTeX

@inproceedings{Garc_s_Ru_z_2023,
  title={{A Port-Hamiltonian Droop Control for Grid-Forming Inverters}},
  DOI={10.23919/epe23ecceeurope58414.2023.10264505},
  booktitle={{2023 25th European Conference on Power Electronics and Applications (EPE’23 ECCE Europe)}},
  publisher={IEEE},
  author={Garcés-Ruíz, Alejandro and Bravo-López, Manuel and Rodriguez, Pedro},
  year={2023},
  pages={1--6}
}

Download the bib file

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