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Analysis of a reactive power exchange between distribution and transmission grids

: Marten, F.; Diwold, K.; Löwer, L.; Faiella, L.M.; Hochloff, P.; Hansen, L.H.; Braun, M.

Postprint urn:nbn:de:0011-n-2820535 (277 KByte PDF)
MD5 Fingerprint: 44e42fa79d52f787d7810efca0cc96c9
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Erstellt am: 17.6.2016

Institute of Electrical and Electronics Engineers -IEEE-; IEEE Industrial Electronics Society -IES-:
IEEE International Workshop on Intelligent Energy Systems, IWIES 2013. Proceedings : 14 November 2013, Vienna
Piscataway, NJ: IEEE, 2013
ISBN: 978-1-4799-1135-6
International Workshop on Intelligent Energy Systems (IWIES) <2013, Vienna>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IWES ()

In this paper a novel co-simulation is developed, to study the dynamic exchange of reactive power from a distribution grid to the transmission grid. This exchange is performed under a regulatory scheme. In particular, a distribution grid optimizer signals to the transmission grid the available reactive power interval at the distribution/transmission nodes every 15 minutes. A transmission grid optimizer uses this information to compute a reactive power set point, to stabilize the voltage in the transmission grid. The distribution grid optimizer receives this set point and translates it into settings for transformers and renewable generators. This strategy is tested on a running grid simulation, with the tools working in parallel. It is shown that the voltage in the transmission grid can be improved, but at the cost of power losses in the distribution grid and renewable generators.