Influence of grid-connected solar inverters and mains monitoring systems on the spectral grid impedance
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung
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Influence of grid-connected solar inverters and mains monitoring systems on the spectral grid impedance. / Kaatz, G.; Grumm, Florian; Jordan, M. et al.
XII International School on Nonsinusoidal Currents and Compensation. IEEE - Institute of Electrical and Electronics Engineers Inc., 2015. S. 21-26 7174687 (12th Conference-Seminar: International School on Nonsinusoidal Currents and Compensation, ISNCC 2015 - Conference Proceedings).Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung
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TY - CHAP
T1 - Influence of grid-connected solar inverters and mains monitoring systems on the spectral grid impedance
AU - Kaatz, G.
AU - Grumm, Florian
AU - Jordan, M.
AU - Schulz, D.
PY - 2015/7/31
Y1 - 2015/7/31
N2 - The impact of harmonic distortion on the power quality, caused by solar inverters, is strongly affected by the spectral characteristic of the grid impedance at the point of common coupling (PCC). The grid impedance at a PCC can be modelled as a parallel connection of the equivalent impedances of the grid structure and the solar inverter system. Yet, it is challenging to determine the exact frequency characteristics of these parameters. It requires detailed spectral models, which are often not available especially for the grid. In this contribution, both parameters are measured and evaluated in the frequency range from DC up to 20 kHz. In order to analyse the impact, the impedance is measured on a test grid structure and a PCC. In particular, this paper analyses the influence of the number of parallel-connected inverters as well as the operation point and the integrated mains monitoring system on the resulting spectral grid impedance.
AB - The impact of harmonic distortion on the power quality, caused by solar inverters, is strongly affected by the spectral characteristic of the grid impedance at the point of common coupling (PCC). The grid impedance at a PCC can be modelled as a parallel connection of the equivalent impedances of the grid structure and the solar inverter system. Yet, it is challenging to determine the exact frequency characteristics of these parameters. It requires detailed spectral models, which are often not available especially for the grid. In this contribution, both parameters are measured and evaluated in the frequency range from DC up to 20 kHz. In order to analyse the impact, the impedance is measured on a test grid structure and a PCC. In particular, this paper analyses the influence of the number of parallel-connected inverters as well as the operation point and the integrated mains monitoring system on the resulting spectral grid impedance.
KW - Energy research
KW - harmonic distortion
KW - invertors
KW - power grids
KW - power supply quality
KW - power system measurement
KW - solar power stations
UR - http://www.scopus.com/inward/record.url?scp=84947807400&partnerID=8YFLogxK
U2 - 10.1109/ISNCC.2015.7174687
DO - 10.1109/ISNCC.2015.7174687
M3 - Article in conference proceedings
SN - 978-1-4799-8417-6
T3 - 12th Conference-Seminar: International School on Nonsinusoidal Currents and Compensation, ISNCC 2015 - Conference Proceedings
SP - 21
EP - 26
BT - XII International School on Nonsinusoidal Currents and Compensation
PB - IEEE - Institute of Electrical and Electronics Engineers Inc.
T2 - International Symposium on Networks, Computers and Communications - ISNCC 2015
Y2 - 15 June 2015 through 18 June 2015
ER -