Impacts analysis and optimization of electric grid protection in presence of decentralized production

This study presents an idea inspired by an industrial site (Global Company of Lafargeholcim) which suffers from several protection problems. Firstly, the effects of the distributed generator (DG) on the protection of the radial grid in the event of a symmetric three-phase short circuit with several...

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Bibliographic Details
Published in:Electrical engineering 2022, Vol.104 (4), p.2369-2377
Main Authors: Bensmaine, Mebrouk, Abdelhamid, Lilia, Khamari, Dalila
Format: Article
Language:English
Subjects:
Algorithms
Distributed generation
Economics and Management
Electrical Engineering
Electrical Machines and Networks
Energy Policy
Engineering
Optimization
Original Paper
Power Electronics
Selectivity
Short circuits
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Summary:This study presents an idea inspired by an industrial site (Global Company of Lafargeholcim) which suffers from several protection problems. Firstly, the effects of the distributed generator (DG) on the protection of the radial grid in the event of a symmetric three-phase short circuit with several scenarios (varying in size and location of the DG) are presented. The study of these effects allows to observe problems on protection, especially, sensitivity and selectivity. Secondly, in order to have well-optimized protection, taking into account both the size and the location of a distributed generator in a radial grid, we propose an algorithm with a new formula. The effectiveness of the new idea can be demonstrated through simulation results.
ISSN:0948-7921
1432-0487
DOI:10.1007/s00202-021-01483-3