Scales and Objectives for Under-frequency Load Shedding

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Paper number

1093

Working Group Number

Conference name

CIRED 2019

Conference date

3-6 June 2019

Conference location

Madrid, Spain

Peer-reviewed

Yes

Short title

Convener

Authors

Potel, Barnabé, Univ. Grenoble Alpes- CNRS- Grenoble INP- G2Elab, France
Debusschere, Vincent, Univ. Grenoble Alpes CNRS Grenoble INP G2Elab, France
CADOUX, Florent, Fondation Partenariale de Grenoble INP, France
De Alvaro Garcia, Leticia, Enedis, France

Abstract

To prevent black-outs due to over-consumption, electrical power systems usually rely on under-frequency load shedding (UFLS). In France, it is implemented by disconnecting pre-selected MV feeders from the distribution system. The feeders taking part in the UFLS scheme are chosen according to a specific objective in terms of total amount of power to be shed. Various ways to define and calculate this objective may be considered. This is particularly true when a significant distributed generation (DG) capacity is present and must be considered in the UFLS scheme. This article studies how the choice of the definition, and means of calculation, of the objective impacts UFLS performance – the production from the DG may be such that the local objective to shed becomes negative. This analysis is based on the real consumption data of all MV feeders from six French regions, provided by the main French DSO, Enedis.

Table of content

Keywords

Publisher

AIM

Date

2019-06-03

Permanent link to this record

https://cired-repository.org/handle/20.500.12455/289
http://dx.doi.org/10.34890/518

ISSN

2032-9644

ISBN

978-2-9602415-0-1