Measures to increase the efficiency of a half-bridge MMC

Conference: PCIM Europe digital days 2020 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
07/07/2020 - 07/08/2020 at Deutschland

Proceedings: PCIM Europe digital days 2020

Pages: 8Language: englishTyp: PDF

Hohmann, Fabian; Bakran, Mark-M. (Universitaet Bayreuth, Germany)
Schuster, Dominik (Siemens EM TS TI, Erlangen, Germany)

In this paper, different investigations are presented to increase the overall efficiency of half bridge submodules used in an MMC. The influence of a reduced parasitic inductance on the switching energies as well as an adaptable gate-drive unit is investigated. Furthermore, the thyristor that protects the submodule during DC faults of the converter is substituted by a Press-Pack diode.