Low Voltage DC-Grids with Galvanic Isolation: System Discussion, Efficiency and Performance Comparison to AC - Feeding
Conference: PCIM Europe 2024 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
06/11/2024 - 06/13/2024 at Nürnberg, Germany
doi:10.30420/566262115
Proceedings: PCIM Europe 2024
Pages: 7Language: englishTyp: PDF
Authors:
Fraeger, Lukas; Schnieder, Andreas; Langfermann, Sascha; Owzareck, Michael; Kampen, Dennis; Friebe, Jens
Abstract:
Low voltage DC-grids have shown to increase efficiency and performance compared to AC-grids. This paper provides an overview of different feeding configurations for low voltage DC-grids. Their advantages and disadvantages are compared in terms of both efficiency and performance. To prove the considerations, a test machine is evaluated under both DC and AC feeding. It is shown that losses of an exemplary industrial machine are reduced by up to 18.6 % when switching to bidirectional DC feeding with galvanic isolation and by up to 9.6 % without galvanic isolation.