Small-Signal Stability Optimization of LV microgrids with Grid-forming and Grid-supporting Inverters

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Paper number
1766
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
Eberlein, Simon, University of Stuttgart, Germany
Rudion, Krzysztof, University of Stuttgart, Germany
Radloff, Marius, University of Stuttgart, Germany
Abstract
One of the most critical aspects of the operation of islanded microgrids is the small-signal stability. This work gives a concise literature review of inverter controller optimization with respect to stability and power sharing in microgrids. Then controller parameters are optimized for an existing rural low voltage grid with several battery storage systems utilizing a genetic algorithm. The new feature is that not only controller parameters are optimized, but also the choice of the controller type, such as grid-forming and grid-supporting droop control. The results underline that using different inverter controller types in one microgrid improves the stability and power sharing.  
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/563
http://dx.doi.org/10.34890/789
ISSN
2032-9644
ISBN
978-2-9602415-0-1