Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Energy distribution with DC microgrids in commercial buildings with power electronics

: Wunder, B.; Kaiser, J.; Fersterra, F.; Ott, L.; Han, Y.; März, M.


Institute of Electrical and Electronics Engineers -IEEE-; Austrian Institute of Technology GmbH -AIT-:
International Symposium on Smart Electric Distribution Systems and Technologies, EDST 2015. Proceedings : Vienna, Austria, 07 - 11 September 2015
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4799-7736-9
ISBN: 978-1-4799-7735-2
International Symposium on Smart Electric Distribution Systems and Technologies (EDST) <2015, Vienna>
Conference Paper
Fraunhofer IISB ()

This paper describes the application of a distributed DC microgrid in a commercial environment as well as the current state of the art and standardization efforts. The introduced grid features various sources and loads being interconnected with a 380 VDC bus. Here, focus lies on the implementation of a DC fast charge station for electro mobility into a DC grid as well as to elaborate the advantages compared to charging from the AC grid. Additionally, the application of DC nanogrids in workplace environments and their combination with a superordinate DC microgrid is presented. The benefits offered by nanogrids compared to conventional AC power supply in an office are discussed as well. Finally, the hardware to realize a DC microgrid within one electrical cabinet is introduced. Its versatility to fulfill a wide range of functions in the grid is shown as well.