Protection Systems for Microgrids with High Rate of Inverter-Based-Generators

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Paper number
0316
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
ALIBERT, Philippe, Schneider Electric, France
Wild, Jean, Schneider Electric, France
Abstract
Future microgrids will be characterized by a higher penetration rate of inverter-based-generators, up to 100% thanks to “grid forming” inverters. In such configuration, protection systems based on conventional overcurrent protections and time discrimination will be no longer well adapted. A new protection function is proposed to ensure fault discrimination in all microgrid operating modes, in particular with the lowest short-circuit currents. This new protection function is based one local current and voltage measurements, without real time communication between protection devices. This new function could be already performed in some modern multifunctional protection relays with a customized logic between conventional functions. But in the future, this function could become a “ready to use” function, as the other conventional functions (overcurrent, directional …).
Table of content
Keywords
Publisher
AIM
Date
2018-06-07
Permanent link to this record
https://www.cired-repository.org/handle/20.500.12455/1068
http://dx.doi.org/10.34890/39
ISSN
2032-9628
ISBN
978-2-9602415-1-8