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Influence of grid configuration on current conducting behaviour in PV installations

Colin Debruyne (UGent) , Bart Verhelst (UGent) , Jan Desmet (UGent) and Lieven Vandevelde (UGent)
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Abstract
On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips. At sufficient production, measurements show a high distortion of phase voltage and variable waveform of both phase voltage and current. Analysis of the installation showed that a Yy0 transformer is used introducing a high zero sequence impedance. Unbalance in the injected current combined with a high zero sequence impedance leads to a high neutral-ground voltage and distorted phase-neutral voltages. In this paper it will be shown that the tripping of the circuit breaker is caused by the measurement method of the device. This paper analyses the practical measurement results, causes of errors and the solution to the stated problem.
Keywords
transformer, measurement method, zero sequence impedance, Solar power, tripping circuit breaker

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MLA
Debruyne, Colin, et al. “Influence of Grid Configuration on Current Conducting Behaviour in PV Installations.” Environment and Electrical Engineering, 10th International Conference, Proceedings, IEEE, 2011, doi:10.1109/EEEIC.2011.5874607.
APA
Debruyne, C., Verhelst, B., Desmet, J., & Vandevelde, L. (2011). Influence of grid configuration on current conducting behaviour in PV installations. Environment and Electrical Engineering, 10th International Conference, Proceedings. Presented at the 10th International conference on Environment and Electrical Engineering (EEEIC 2011), Rome, Italy. https://doi.org/10.1109/EEEIC.2011.5874607
Chicago author-date
Debruyne, Colin, Bart Verhelst, Jan Desmet, and Lieven Vandevelde. 2011. “Influence of Grid Configuration on Current Conducting Behaviour in PV Installations.” In Environment and Electrical Engineering, 10th International Conference, Proceedings. IEEE. https://doi.org/10.1109/EEEIC.2011.5874607.
Chicago author-date (all authors)
Debruyne, Colin, Bart Verhelst, Jan Desmet, and Lieven Vandevelde. 2011. “Influence of Grid Configuration on Current Conducting Behaviour in PV Installations.” In Environment and Electrical Engineering, 10th International Conference, Proceedings. IEEE. doi:10.1109/EEEIC.2011.5874607.
Vancouver
1.
Debruyne C, Verhelst B, Desmet J, Vandevelde L. Influence of grid configuration on current conducting behaviour in PV installations. In: Environment and Electrical Engineering, 10th International conference, Proceedings. IEEE; 2011.
IEEE
[1]
C. Debruyne, B. Verhelst, J. Desmet, and L. Vandevelde, “Influence of grid configuration on current conducting behaviour in PV installations,” in Environment and Electrical Engineering, 10th International conference, Proceedings, Rome, Italy, 2011.
@inproceedings{1208856,
  abstract     = {{On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips. At sufficient production, measurements show a high distortion of phase voltage and variable waveform of both phase voltage and current. Analysis of the installation showed that a Yy0 transformer is used introducing a high zero sequence impedance. Unbalance in the injected current combined with a high zero sequence impedance leads to a high neutral-ground voltage and distorted phase-neutral voltages. In this paper it will be shown that the tripping of the circuit breaker is caused by the measurement method of the device. This paper analyses the practical measurement results, causes of errors and the solution to the stated problem.}},
  author       = {{Debruyne, Colin and Verhelst, Bart and Desmet, Jan and Vandevelde, Lieven}},
  booktitle    = {{Environment and Electrical Engineering, 10th International conference, Proceedings}},
  keywords     = {{transformer,measurement method,zero sequence impedance,Solar power,tripping circuit breaker}},
  language     = {{eng}},
  location     = {{Rome, Italy}},
  pages        = {{4}},
  publisher    = {{IEEE}},
  title        = {{Influence of grid configuration on current conducting behaviour in PV installations}},
  url          = {{http://doi.org/10.1109/EEEIC.2011.5874607}},
  year         = {{2011}},
}

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