Comparison of measurement methods of grid impedance for narrow band-PLC up to 500 kHz

Capponi, Lino (School of Engineering, HES-SO Valais-Wallis, HEI, HES-SO // University of Applied Sciences Western Switzerland) ; Fernández, Igor (Dept. of Comm. Engineering, Univ of the Basque Country (UPV/EHU), Bilbao, Spain) ; Roggo, Dominique (School of Engineering, HES-SO Valais-Wallis, HEI, HES-SO // University of Applied Sciences Western Switzerland) ; Arrinda, Amaia (Dept. of Comm. Engineering, Univ of the Basque Country (UPV/EHU), Bilbao, Spain) ; Angulo, Itziar (Dept. of Comm. Engineering, Univ of the Basque Country (UPV/EHU), Bilbao, Spain) ; De La Vega, David (Dept. of Comm. Engineering, Univ of the Basque Country (UPV/EHU), Bilbao, Spain)

Impedance measurement methods and field measurements are being demanded by utilities and regulatory and standardization bodies, in order to characterize the electrical grid as a data transmission medium. The variation with time and frequency of both the grid access impedance and the load impedance of connected devices has a great influence on the performance of the Power Line Communications (PLC) for Smart Grid applications. This paper presents two different methods to characterize the grid and load impedances for the frequency range used for NB-PLC. One method is based on current injection and Synchronous Demodulation, while the second method is based on the injection of configurable NB-PLC signals and Fourier analysis. Results are compared and evaluated with respect to theoretical calculations, when they are applied to a typical impedance scenario. Moreover, the impact of the variations of the access impedance on the NB-PLC signals is also evaluated, by characterizing both the frequency response of the filter impedance and the effect on the signals spectra.


Keywords:
Conference Type:
full paper
Faculty:
Ingénierie et Architecture
School:
HEI-VS
Institute:
Institut Systèmes industriels
Subject(s):
Ingénierie
Publisher:
Bologna, Italy, 24-26 September 2018
Date:
2018-09
Bologna, Italy
24-26 September 2018
Pagination:
6 p.
Published in:
Proceedings of 2018 IEEE 9th International Workshop on Applied Measurements for Power Systems (AMPS), 26-28 September 2018, Bologna, Italy
DOI:
ISBN:
978-1-5386-5375-3
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2019-01-15, last modified 2019-01-15

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