Loss of Neutral in Low Voltage Electrical Installation with connected DG units – Consequences and Solutions

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Paper number
833
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
Frantzeskakis, Syllas, Democritus University of Thrace, Greece
Voglitsis, Dionisis, Democritus University of Thrace, Greece
Papanikolaou, Nick, Democritus University of Thrace, Greece
Christodoulou, Christos, Democritus University of Thrace, Greece
Gonos, Ioannis, National Technical University of Athens, Greece
Abstract
As the adoption of low-voltage-ride-through requirements for low-voltage distribution systems with distributed generators is under consideration, the fulfilment of these requirements should be examined not only as for the proper response of the generating units, but also regarding the selective operation of line protection means (fuses). Within this context, this paper demonstrates the problem of improper (early) fuse operation, with regard to the low-voltage-ride-through requirements, through simulations in a test distribution feeder with photovoltaic generators. A preliminary solution to this problem is examined, based on proper short-circuit current limitation. Two different approaches of this solution are described and compared. Potential techniques for the detailed implementation of the proposed concept are finally discussed.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/165
http://dx.doi.org/10.34890/322
ISSN
2032-9644
ISBN
978-2-9602415-0-1