Work

Efficiency and Cost Optimization of Dual Active Bridge Converter for 350kW DC Fast Chargers

Year: 2024

Type: conference-paper

Abstract: This study focuses on optimizing the design parameters of a Dual Active Bridge (DAB) converter for use in 350 kW DC fast chargers, emphasizing the balance between efficiency and cost. Addressing the observed gaps in existing high-power application research, it introduces an optimization framework to evaluate critical design parameters—number of converter modules, switching frequency, and transformer turns ratio—within a broad operational voltage range. The analysis identifies an optimal configuration that achieves over 95% efficiency at rated power across a wide output voltage range, comprising seven 50 kW DAB converters with a switching frequency of 30 kHz, and a transformer turns ratio of 0.9.

DOI: 10.1109/ecceeurope62508.2024.10752065

Authors: Sadik Cinik, Fangzhou Zhao, Giuseppe De Falco, Xiongfei Wang

Institutions: Aalborg University, Infineon Technologies (Austria), KTH Royal Institute of Technology

Language: English

Topic: Advanced DC-DC Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: green

Funders: HORIZON EUROPE Framework Programme, HORIZON EUROPE Marie Sklodowska-Curie Actions

Award: Cost-reduction of EV fast-charging station to enable large-scale electrification of mobility