Converter Overvoltage Protection for DC-Grids

Beitrag bei einer Tagung

Details zur Publikation

Autorinnen und Autoren: Kaiser J, Schork F, Gosses K, Han Y, Schulz M, Ott L, Wunder B, März M
Jahr der Veröffentlichung: 2018
Sprache: Englisch


installations with a quasi-standard DC voltage of 380 V have been common
for some time now in application areas like data centers or telecommunication
facilities. In recent years, other fields, for example commercial or industrial
buildings, saw an increase in DC power distribution as well. They can provide advantages
like increased power efficiency or better integration of renewable energy
sources (e.g. photovoltaic plants). A simple example for such a grid is shown
in Figure 1. This approach also offers a less complicated realization of
uninterruptible power supply functions through battery storage systems without
inverters or recuperation of energy from electric drives. Besides the savings
from reduced energy losses, the smaller number of components offers the chance
to provide DC devices at lower costs. However, safety guidelines and standards
for DC-grid installations in those areas are in some cases still in the making
or are not present at all. This also applies to protection devices for such
grids which are often not available on the market or cannot fulfill the
differing requirements (e.g. DC current breaking capability). This paper aims
to provide practical guidelines and values for certain aspects for the design
of safe DC-grids and protection elements, which can be seen as a mandatory
requirement to widen the acceptance for DC technology in application areas
other than data centers or telecom Equipment.

FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

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

Einrichtungen weiterer Autorinnen und Autoren

Fraunhofer-Institut für Integrierte Systeme und Bauelementetechnologie (IISB)


Kaiser, J., Schork, F., Gosses, K., Han, Y., Schulz, M., Ott, L.,... März, M. (2018). Converter Overvoltage Protection for DC-Grids. In Proceedings of the 2018 INTELEC International Telecommunications Energy Conference. Turin, IT.

Kaiser, Julian, et al. "Converter Overvoltage Protection for DC-Grids." Proceedings of the 2018 INTELEC International Telecommunications Energy Conference, Turin 2018.


Zuletzt aktualisiert 2019-02-07 um 22:10