Enhancing Synchronization Stability of a VSC-Grid System using IDA-PBC Controller

Authors

Abstract

A low-inertial power system allows rapid fluctuations in frequency and phase under disturbances. These fluctuations can destabilize the entire system if not accounted for while estimating the control action. Therefore, fast and accurate synchronization is necessary to ensure inertial stability. However, there is a limit on the response time of synchronization controllers like a phase-locked loop (PLL) to ensure harmonic suppression and stability against a weak grid. In this context, a passivity-based controller is proposed as an alternative, which can enable fast current control and PLL response while maintaining stability and power quality. The results are compared with a proportional-integral (PI) controller while accounting for control and modulation delay.

Citation

Journal: 2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)
Year: 2022
Volume:
Issue:
Pages: 1–4
Publisher: IEEE
DOI: 10.1109/pedg54999.2022.9923115

BibTeX

@inproceedings{Nagam_2022,
  title={{Enhancing Synchronization Stability of a VSC-Grid System using IDA-PBC Controller}},
  DOI={10.1109/pedg54999.2022.9923115},
  booktitle={{2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)}},
  publisher={IEEE},
  author={Nagam, Sai Sowmya and Pal, Bikash C.},
  year={2022},
  pages={1--4}
}

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References

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