Paper Info
Title
Field Trials for the Empirical Characterization of the Low Voltage Grid Access Impedance From 35 kHz to 500 kHz.
Abstract
The access impedance of low-voltage (LV) power networks is a major factor related to the performance of the narrow-band power line communications (NB-PLCs) and, in a wider sense, to electromagnetic compatibility (EMC) performance. Up to date, there is still a lack of knowledge about the frequency-dependent access impedance for frequencies above 9 kHz and up to 500 kHz, which is the band where the NB-PLC operates. The access impedance affects the transmission of the NB-PLC signal, and it determines the propagation of the non-intentional emissions that may disturb other electrical devices, including malfunctioning or reduced lifetime of equipment. This paper presents the results of field measurements of the LV access impedance up to 500 kHz in different scenarios, with measurement locations close to end users and near transformers. The results provide useful information to analyze the characteristics of the LV access impedance, including variation with frequency, ranges of values for different frequency bands, and analysis of specific phenomena. Moreover, the results reveal a diverse frequency-dependent behavior of the access impedance in different scenarios, depending on the grid topology, the number of end users (that is, number and type of connected loads), and the type of transformation center. Overall, the results of this paper offer a better understanding of the transmission of NB-PLC signals and EMC-related phenomena.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2924253
IEEE ACCESS
Keywords
Field
DocType
Impedance measurement,measurement techniques,electric variables measurement,transmission line measurements,communication channels,communication networks,electromagnetic compatibility and interference
500 kHz,Electrical devices,Computer science,Computer network,Low voltage grid,Electrical impedance,Electromagnetic compatibility,Electrical engineering,Radio spectrum,Grid
Journal
Volume
ISSN
Citations 
7
2169-3536
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Igor Fernandez101.69
Amaia Arrinda27017.89
Itziar Angulo3738.58
David de la Vega4187.89
Noelia Uribe-Pérez500.34
Asier Llano600.34