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

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CIRED 2018 Ljubljana WS - 0593 - 21148.pdf (356.87 KB)

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.

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Publisher

AIM

Date

2018-06-07

Published in

CIRED 2018 Ljubljana Workshop on Microgrids and Local Energy Communities

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