A Soft-Switching Solid-State Transformer Module
- Resource Type
- Conference
- Authors
- Ren, Xufu; Jiang, Yongshan; Weng, Haoyuan; Long, Teng; Xu, Dehong
- Source
- 2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Power Electronics for Distributed Generation Systems (PEDG), 2023 IEEE 14th International Symposium on. :185-191 Jun, 2023
- Subject
- Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Power system measurements
Density measurement
Silicon carbide
Magnetic resonance
Bidirectional power flow
Switches
Zero voltage switching
high efficiency
high power density
solid-state transformer (SST)
zero-voltage switching (ZVS)
- Language
- ISSN
- 2329-5767
This paper will study a fully soft-switching solid-state transformer (SST) module. The topology of the SST module is introduced and soft-switching operation principles are analyzed. To improve the system efficiency and power density, the magnetic components including the soft-switching resonant inductor and medium-frequency transformer (MFT) are designed. A 20kW SiC-MOSFET prototype is built up and tested for verification. The proposed two-stage SST module features a full load efficiency of 98.1% and a peak efficiency of 98.4% for bidirectional power flow.