Non-isolated three-port DC/DC converter for ±380V DC microgrids

Conference contribution
(Conference Contribution)

Publication Details

Author(s): März M, Han Y, Kaiser J, Schulz M, Ott L, Fersterra F, Wunder B
Editor(s): IEEE
Publisher: VDE
Publication year: 2016
ISBN: 978-3-8007-4186-1
Language: English


This paper describes a novel topology for a non-isolated three-port DC/DC-converter. Target application is the connection of various sources and loads, e.g. photovoltaic, batteries and fuel cells, to a three-wire, two-phase ±380 VDC microgrid with center-tapped neutral.

The DC/DC-converter provides a bidirectional power transfer between the DC microgrid, energy sources or storages. The proposed topology can additionally perform power balancing between the positive and negative phase and thus omitting a second DC/DC-converter for balancing. The extended functionality is achieved by using only one coupled inductor.

A prototype DC/DC-converter with a nominal power of 6 kW is introduced which was realized to experimentally verify the proposed topology. Measurement results and performance of this prototype are presented.

FAU Authors / FAU Editors

Han, Yunchao
Lehrstuhl für Leistungselektronik
März, Martin Prof. Dr.
Lehrstuhl für Leistungselektronik
Wunder, Bernd
Lehrstuhl für Leistungselektronik

External institutions
Fraunhofer-Institut für Integrierte Systeme und Bauelementetechnologie (IISB)

How to cite

März, M., Han, Y., Kaiser, J., Schulz, M., Ott, L., Fersterra, F., & Wunder, B. (2016). Non-isolated three-port DC/DC converter for ±380V DC microgrids. In IEEE (Eds.), . Nürnberg: VDE.

März, Martin, et al. "Non-isolated three-port DC/DC converter for ±380V DC microgrids." Proceedings of the 2016 PCIM Europe, Nürnberg Ed. IEEE, VDE, 2016.


Last updated on 2018-10-08 at 21:39