Battery energy storage effect on AC/DC microgrids efficiency

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

2 Citations (Scopus)


This paper compares the efficiency of AC and DC microgrids from a new perspective. It studies the effect of adding a battery energy storage on a microgrid efficiency. A new designed Finnish-townhouse building is applied to model the power flow and converter types. Losses related to wirings, converters and dis/charging of the energy storage are calculated in a minute resolution to enhance the accuracy of the results. Ultimately, efficiency is derived for a range of converters' switching frequencies from 4 to 15 kHz while considering the microgrid possible voltage fluctuations in both AC and DC systems. Results represent higher efficiency in the DC microgrid in both cases with and without the existence of the storage. Furthermore, less discrepancy is obtained in the DC microgrid efficiency when the storage is added comparing to the AC microgrid. Accordingly, switching to DC distribution inside the building concerning the fast developments in power conversion devices seems promising in increasing the efficiency of the power systems.

Original languageEnglish
Title of host publicationProceedings of the 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe
ISBN (Electronic)9789075815245
Publication statusPublished - 25 Oct 2016
MoE publication typeA4 Conference publication
EventEuropean Conference on Power Electronics and Applications - Convention Centre Karlsruhe, Karlsruhe, Germany
Duration: 5 Sept 20169 Sept 2016
Conference number: 18

Publication series

NameEuropean Conference on Power Electronics and Applications
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISSN (Print)2325-0313


ConferenceEuropean Conference on Power Electronics and Applications
Abbreviated titleEPE'16 ECCE
Internet address


  • DC power supply
  • Efficiency
  • Energy storage
  • Microgrid
  • Renewable energy systems


Dive into the research topics of 'Battery energy storage effect on AC/DC microgrids efficiency'. Together they form a unique fingerprint.

Cite this