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Influence of grid-connected inverters on the power quality of the distribution grid

Bart Verhelst (UGent) , Jurgen Van Ryckeghem (UGent) and Jan Desmet (UGent)
Author
Organization
Abstract
Many inverters are quoted as having a PF of better than 0.95 when in reality, the true power factor is between 0.5 and 0.75. This paper describes the influence of grid-connected inverters on the distribution grid. The impact of the voltage distortion from the inverter to the distribution grid is relative small without grid impedance. When the grid impedance is involved, the distortion will become higher and so, more harmonics will be injected into the grid. The impact of the current distortion is especially high at low power output, but decreases fast at moderate or high power. If the background distortion of the grid increases, there will be an increase of the voltage and current harmonics. The specific limits of the EN 50160 and IEC 61000-3-12 could be exceeded at such high pollution.
Keywords
inverter, Renewable energy, power quality, normalisation

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Citation

Please use this url to cite or link to this publication:

MLA
Verhelst, Bart, et al. “Influence of Grid-Connected Inverters on the Power Quality of the Distribution Grid.” 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), IEEE, 2014, pp. 670–75, doi:10.1109/SPEEDAM.2014.6872002.
APA
Verhelst, B., Van Ryckeghem, J., & Desmet, J. (2014). Influence of grid-connected inverters on the power quality of the distribution grid. 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 670–675. https://doi.org/10.1109/SPEEDAM.2014.6872002
Chicago author-date
Verhelst, Bart, Jurgen Van Ryckeghem, and Jan Desmet. 2014. “Influence of Grid-Connected Inverters on the Power Quality of the Distribution Grid.” In 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 670–75. New York, NY, USA: IEEE. https://doi.org/10.1109/SPEEDAM.2014.6872002.
Chicago author-date (all authors)
Verhelst, Bart, Jurgen Van Ryckeghem, and Jan Desmet. 2014. “Influence of Grid-Connected Inverters on the Power Quality of the Distribution Grid.” In 2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 670–675. New York, NY, USA: IEEE. doi:10.1109/SPEEDAM.2014.6872002.
Vancouver
1.
Verhelst B, Van Ryckeghem J, Desmet J. Influence of grid-connected inverters on the power quality of the distribution grid. In: 2014 International symposium on power electronics, electrical drives, automation and motion (SPEEDAM). New York, NY, USA: IEEE; 2014. p. 670–5.
IEEE
[1]
B. Verhelst, J. Van Ryckeghem, and J. Desmet, “Influence of grid-connected inverters on the power quality of the distribution grid,” in 2014 International symposium on power electronics, electrical drives, automation and motion (SPEEDAM), Ischia, Italy, 2014, pp. 670–675.
@inproceedings{4429566,
  abstract     = {{Many inverters are quoted as having a PF of better than 0.95 when in reality, the true power factor is between 0.5 and 0.75. This paper describes the influence of grid-connected inverters on the distribution grid. The impact of the voltage distortion from the inverter to the distribution grid is relative small without grid impedance. When the grid impedance is involved, the distortion will become higher and so, more harmonics will be injected into the grid. The impact of the current distortion is especially high at low power output, but decreases fast at moderate or high power. If the background distortion of the grid increases, there will be an increase of the voltage and current harmonics. The specific limits of the EN 50160 and IEC 61000-3-12 could be exceeded at such high pollution.}},
  author       = {{Verhelst, Bart and Van Ryckeghem, Jurgen and Desmet, Jan}},
  booktitle    = {{2014 International symposium on power electronics, electrical drives, automation and motion (SPEEDAM)}},
  isbn         = {{9781479947492}},
  keywords     = {{inverter,Renewable energy,power quality,normalisation}},
  language     = {{eng}},
  location     = {{Ischia, Italy}},
  pages        = {{670--675}},
  publisher    = {{IEEE}},
  title        = {{Influence of grid-connected inverters on the power quality of the distribution grid}},
  url          = {{http://doi.org/10.1109/SPEEDAM.2014.6872002}},
  year         = {{2014}},
}

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