Design and Testing of 1.44 kVac / 270 Vdc 50 kW Solid-state Transformer Cell for Data Centers
Konferenz: PCIM Asia Shanghai Conference 2025 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
24.09.2025-26.09.2025 in Shanghai, China
doi:10.30420/566583006
Tagungsband: PCIM Asia Shanghai Conference 2025
Seiten: 8Sprache: EnglischTyp: PDF
Autoren:
Wu, Xin; Long, Haihong; Wang, Haoxiang; Zhou, Yi; Wang, Wenxin; Xu, Dehong
Inhalt:
A solid-state transformer (SST) is designed to step down 10 kVac medium-voltage (MV) to 270 Vdc for data center application. To reduce the number of cascaded cells in the SST, three-level topologies combined with 1700 V SiC devices are used in the cells. The cell is composed of the front-end stage threelevel Boost PFC (TLB-PFC) AC/DC converter and the back-end stage three-level LLC (TL-LLC) isolated DC/DC converter. The design of the cell is introduced. The prototype of the 50 kW SST cell is built and tested by the experiment.