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The influence of grid-connected three-phase inverters on voltage unbalance

Bart Meersman (UGent) , Bert Renders (UGent) , Lieven Degroote (UGent) , Tine Vandoorn (UGent) and Lieven Vandevelde (UGent)
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Abstract
The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating. To decrease this voltage unbalance problem three-phase four-wire inverter-connected distributed generation units may be used. In this paper, the influence of the control strategy of three-phase inverter-connected distributed generation (DG) units on voltage unbalance is studied. One of the control strategies is a damping control method for a three-phase four-wire inverter for DG units which behaves resistively towards voltage disturbances independently of the input power. The other control methods are the classical sinusoidal control strategy and the resistive control strategy. The simulation results show the positive effect of the damping control strategy on voltage unbalance.
Keywords
voltage unbalance, resistive behaviour, three-phase voltage-source inverter (VSI), neutral-point-clamped VSI, distributed generation, neutral-point shifting

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MLA
Meersman, Bart, Bert Renders, Lieven Degroote, et al. “The Influence of Grid-connected Three-phase Inverters on Voltage Unbalance.” IEEE Power and Energy Society General Meeting PESGM. New York, NY, USA: IEEE, 2010. Print.
APA
Meersman, B., Renders, B., Degroote, L., Vandoorn, T., & Vandevelde, L. (2010). The influence of grid-connected three-phase inverters on voltage unbalance. IEEE Power and Energy Society General Meeting PESGM. Presented at the IEEE Power and Energy Society 2010 General Meeting, New York, NY, USA: IEEE.
Chicago author-date
Meersman, Bart, Bert Renders, Lieven Degroote, Tine Vandoorn, and Lieven Vandevelde. 2010. “The Influence of Grid-connected Three-phase Inverters on Voltage Unbalance.” In IEEE Power and Energy Society General Meeting PESGM. New York, NY, USA: IEEE.
Chicago author-date (all authors)
Meersman, Bart, Bert Renders, Lieven Degroote, Tine Vandoorn, and Lieven Vandevelde. 2010. “The Influence of Grid-connected Three-phase Inverters on Voltage Unbalance.” In IEEE Power and Energy Society General Meeting PESGM. New York, NY, USA: IEEE.
Vancouver
1.
Meersman B, Renders B, Degroote L, Vandoorn T, Vandevelde L. The influence of grid-connected three-phase inverters on voltage unbalance. IEEE Power and Energy Society General Meeting PESGM. New York, NY, USA: IEEE; 2010.
IEEE
[1]
B. Meersman, B. Renders, L. Degroote, T. Vandoorn, and L. Vandevelde, “The influence of grid-connected three-phase inverters on voltage unbalance,” in IEEE Power and Energy Society General Meeting PESGM, Minneapolis, MN, USA, 2010.
@inproceedings{1028679,
  abstract     = {The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating. To decrease this voltage unbalance problem three-phase four-wire inverter-connected distributed generation units may be used. In this paper, the influence of the control strategy of three-phase inverter-connected distributed generation (DG) units on voltage unbalance is studied. One of the control strategies is a damping control method for a three-phase four-wire inverter for DG units which behaves resistively towards voltage disturbances independently of the input power. The other control methods are the classical sinusoidal control strategy and the resistive control strategy. The simulation results show the positive effect of the damping control strategy on voltage unbalance.},
  author       = {Meersman, Bart and Renders, Bert and Degroote, Lieven and Vandoorn, Tine and Vandevelde, Lieven},
  booktitle    = {IEEE Power and Energy Society General Meeting PESGM},
  isbn         = {9781424465491},
  issn         = {1944-9925},
  keywords     = {voltage unbalance,resistive behaviour,three-phase voltage-source inverter (VSI),neutral-point-clamped VSI,distributed generation,neutral-point shifting},
  language     = {eng},
  location     = {Minneapolis, MN, USA},
  pages        = {9},
  publisher    = {IEEE},
  title        = {The influence of grid-connected three-phase inverters on voltage unbalance},
  url          = {http://dx.doi.org/10.1109/PES.2010.5589331},
  year         = {2010},
}

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