A Voltage Controlled DG Unit Based Active Harmonic Damping for Grid Connected and Islanding Micro grids

  • Unique Paper ID: 145289
  • Volume: 4
  • Issue: 8
  • PageNo: 351-355
  • Abstract:
  • The use of underground cables and shunt capacitor banks may present power distribution system resonances. Due to different behaviours at harmonic frequencies, specific harmonic mitigation methods shall be developed for current controlled and voltage-controlled DG units. In this paper centres on developing a voltage-controlled DG unit-based active harmonic damping method for grid-connected and islanding microgrid systems. An upgraded virtual impedance control method with a virtual damping resistor and a nonlinear virtual capacitor is proposed. The nonlinear virtual capacitor is used to compensate the harmonic voltage drop on the grid-side inductor of a DG unit LCL filter and the virtual resistor is mainly responsible for microgrid resonance damping. The efficiency of the proposed damping method is examined using both a single DG unit and multiple parallel DG units.

Copyright & License

Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{145289,
        author = {Pallavi M. Bile and A.ShravanKumar},
        title = {A Voltage Controlled DG Unit Based Active Harmonic Damping for Grid Connected and Islanding Micro grids},
        journal = {International Journal of Innovative Research in Technology},
        year = {},
        volume = {4},
        number = {8},
        pages = {351-355},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=145289},
        abstract = {The use of underground cables and shunt capacitor banks may present power distribution system resonances. Due to different behaviours at harmonic frequencies, specific harmonic mitigation methods shall be developed for current controlled and voltage-controlled DG units.  In this paper centres on developing a voltage-controlled DG unit-based active harmonic damping method for grid-connected and islanding microgrid systems. An upgraded virtual impedance control method with a virtual damping resistor and a nonlinear virtual capacitor is proposed. The nonlinear virtual capacitor is used to compensate the harmonic voltage drop on the grid-side inductor of a DG unit LCL filter and the virtual resistor is mainly responsible for microgrid resonance damping. The efficiency of the proposed damping method is examined using both a single DG unit and multiple parallel DG units.},
        keywords = {Active power filter, distributed power generation, droop control, grid-connected converter, microgrid, power quality, renewable energy system, resonance propagation, virtual impedance.},
        month = {},
        }

Cite This Article

  • ISSN: 2349-6002
  • Volume: 4
  • Issue: 8
  • PageNo: 351-355

A Voltage Controlled DG Unit Based Active Harmonic Damping for Grid Connected and Islanding Micro grids

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