Improvement of RES hosting capacity using a central energy storage system

P. Astero, L. Söder

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

15 Citations (Scopus)


High penetration of renewable energy sources (RESs) in distribution systems leads to reverse active power and voltage rise in low voltage (LV) grids, which limits the hosting capacity. Energy storage systems (ESSs) have been used to improve the hosting capacity by decreasing the reverse active power in some literature. ESSs can still improve the hosting capacity more by providing reactive power. The reactive power shows a little effect in existing researches, because they have mostly simulate LV grids without modeling transformers. However, the high reactance of the transformer magnifies the effectiveness of the reactive power control even more than the active power in some buses. This paper develops an optimal method for placement, sizing, and active and reactive power control of a central ESS to improve the hosting capacity. The simulation results in highly RES penetrated grids at Germany show the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationProceedings of IEEE PES Innovative Smart Grid Technologies Conference Europe, ISGT-Europe 2017
Number of pages6
ISBN (Electronic)9781538619537
Publication statusPublished - Jan 2018
MoE publication typeA4 Conference publication
EventIEEE PES Europe Conference on Innovative Smart Grid Technologies - Torino, Italy
Duration: 26 Sept 201729 Sept 2017
Conference number: 7


ConferenceIEEE PES Europe Conference on Innovative Smart Grid Technologies
Abbreviated titleISGT Europe


  • Distribution grids
  • Energy storage system
  • Hosting capacity
  • Reactive power control
  • Renewable energy sources


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