Modelling of three-phase four-wire low-voltage cables taking into account the neutral connection to the earth

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Paper number
0593
Working Group Number
Conference name
CIRED 2018 Ljubljana Workshop
Conference date
7 - 8 June 2018
Conference location
Ljubljana, Slovenia
Peer-reviewed
Yes
Short title
Convener
Authors
Olivier, Frederic, University of Liège, Belgium
Fonteneau, Raphael, University of Liège, Belgium
Ernst, Damien, University of Liège, Belgium
Abstract
Local energy communities (LEC) usually take place at the level of the low-voltage distribution networks, which are inherently unbalanced, due to single-phase household appliances and distributed generation. To simulate and optimise the behaviour of a LEC, the three phases and neutral must be modelled explicitly. This paper aims at assessing numerically the influence of the modelling of the earth and the connection between the neutral and the earth, in terms of voltages and currents. The simulations are performed on a real Belgian lowvoltage feeder supplying 19 houses, which are all equipped with a smart meter measuring the mean voltage, current, active and reactive power every minute for each phase. The simulations show that the difference introduced by the explicit modelling of the earth using Carson’s equations is much smaller than the difference between the simulations and the real measurements.
Table of content
Keywords
Publisher
AIM
Date
2018-06-07
Permanent link to this record
https://www.cired-repository.org/handle/20.500.12455/1191
http://dx.doi.org/10.34890/295
ISSN
2032-9628
ISBN
978-2-9602415-1-8