TY - GEN
T1 - Wide frequency range medium-voltage grid impedance analysis by current injection of a multi-MW power converter
AU - Hahn, Frederik
AU - Bruske, Sebastian
AU - Benkendorff, Berthold
AU - Buticchi, Giampaolo
AU - Fuchs, Friedrich W.
AU - Liserre, Marco
N1 - Publisher Copyright:
© 2016 IEEE and EPE Association.
PY - 2016/10/25
Y1 - 2016/10/25
N2 - More and more energy is fed especially by decentralized converters from renewable energy sources into the grid. Therefore, it is important to know the grid behavior at a wide frequency range from the fundamental frequency up to the kHz-range. This paper presents an advanced impedance medium-voltage measurement system with a high frequency range for an electrical medium-voltage grid. A sinusoidal current of a predefined frequency is injected into the grid. With this, the grid impedance is calculated from the measured magnitude and phase of the injected current and the resulting voltage. The measurements will be executed at different frequencies to produce approximate continuous impedance versus frequency characteristic of the grid at the measured coupling point. Results of a ready to use, low-voltage impedance measurement system are discussed, and the design considerations the basic concept and first simulation results of the developed medium-voltage system are presented in this paper.
AB - More and more energy is fed especially by decentralized converters from renewable energy sources into the grid. Therefore, it is important to know the grid behavior at a wide frequency range from the fundamental frequency up to the kHz-range. This paper presents an advanced impedance medium-voltage measurement system with a high frequency range for an electrical medium-voltage grid. A sinusoidal current of a predefined frequency is injected into the grid. With this, the grid impedance is calculated from the measured magnitude and phase of the injected current and the resulting voltage. The measurements will be executed at different frequencies to produce approximate continuous impedance versus frequency characteristic of the grid at the measured coupling point. Results of a ready to use, low-voltage impedance measurement system are discussed, and the design considerations the basic concept and first simulation results of the developed medium-voltage system are presented in this paper.
KW - High frequency power converter
KW - Impedance measurement
KW - Power quality
UR - http://www.scopus.com/inward/record.url?scp=84996848812&partnerID=8YFLogxK
U2 - 10.1109/EPE.2016.7695606
DO - 10.1109/EPE.2016.7695606
M3 - Conference contribution
AN - SCOPUS:84996848812
T3 - 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
BT - 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
Y2 - 5 September 2016 through 9 September 2016
ER -
