Author
Listed:
- Fatih Enes Gocen
(Department of Electrical Engineering, Istanbul Technical University, 34469 Istanbul, Türkiye
Aselsan Inc., Yenimahalle, 06200 Ankara, Türkiye)
- Salih Baris Ozturk
(Department of Electrical Engineering, Istanbul Technical University, 34469 Istanbul, Türkiye)
- Mehmet Hakan Aksit
(Aselsan Inc., Yenimahalle, 06200 Ankara, Türkiye)
- Gurkan Dugan
(Aselsan Inc., Yenimahalle, 06200 Ankara, Türkiye)
- Benay Cakmak
(Aselsan Inc., Yenimahalle, 06200 Ankara, Türkiye)
- Caner Demir
(Aselsan Inc., Yenimahalle, 06200 Ankara, Türkiye)
AbstractThis paper presents the design and implementation of a high-efficiency, full silicon carbide (SiC)-based center-tapped phase-shifted full-bridge (PSFB) converter for NiCd battery charging applications in railway systems. The converter utilizes SiC MOSFET modules on the primary side and SiC diodes on the secondary side, resulting in significant efficiency improvements due to the superior switching characteristics and high-temperature tolerance inherent in SiC devices. A nanocrystalline-cored center-tapped transformer is optimized to minimize voltage stress on the rectifier diodes. Additionally, the use of a nanocrystalline core provides high saturation flux density, low core loss, and excellent permeability, particularly at high frequencies, which significantly enhances system efficiency. The converter also compensates for temperature fluctuations during operation, enabling a wide and adjustable output voltage range according to the temperature differences. A prototype of the 10-kW, 50-kHz PSFB converter, operating with an input voltage range of 700–750 V and output voltage of 77–138 V, was developed and tested both through simulations and experimentally. The converter achieved a maximum efficiency of 97% and demonstrated a high power density of 2.23 kW/L, thereby validating the effectiveness of the proposed design for railway battery charging applications.
Suggested Citation
Fatih Enes Gocen & Salih Baris Ozturk & Mehmet Hakan Aksit & Gurkan Dugan & Benay Cakmak & Caner Demir, 2025.
"Design and Implementation of a Full SiC-Based Phase-Shifted Full-Bridge DC-DC Converter with Nanocrystalline-Cored Magnetics for Railway Battery Charging Applications,"
Energies, MDPI, vol. 18(15), pages 1-23, July.
Handle:
RePEc:gam:jeners:v:18:y:2025:i:15:p:3945-:d:1708760
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