MoReSiC Team Meeting

The whole team: WUT, NTNU and Markel gathered to discuss the final stage of the MoReSiC project.
The main topic was the connection of converters with a common DC bus and the problems that may occur in the process. We met at the Department Of Electrical Power Engineering And Mechatronics at TalTech – Tallinn University of Technology.

Conference

After the meeting, part of the team from the Warsaw University of Technology stayed in Tallinn to participate in the CPE-POWERENG 2023 conference. It was a conference that lasted three days, and in each of them, you could learn about the latest research conducted around the world in the field of power electronics.

On our part, three presentations related to the latest activities in the project were presented.

On the first day, Przemysław Trochimiuk presented the results of research on the Experimental Evaluation of SiC-Based Medium Voltage Series Resonant Dual-Active-Bridge ThreeLevel DC/DC Converters for EV Charging.

On the second day, Krzysztof Kalinowski presented the concepts of energy management in the MoReSiC – Project system. We could learn from it how power can be transferred between converters and how the management system is supposed to assign reference power values to each converter.

Also, during the second day, Michał Harasimczuk presented the analysis and experimental evaluation of inductor configurations and modulation techniques in an interleaved three-level DC/DC SiC-based converter.

The study focuses on the effects of the configurations on the output ripples of the converter, which is crucial for battery-oriented systems. The tests were performed at 1 kV and up to nearly 10 kW of power, successfully validating the use of each configuration. It is shown that for a system to operate in a wide output range, the current ripple criterion is not enough for choosing the optimal configuration, and other factors, e.g., efficiency, must be considered.