Special Session SS06

Topology, Control and Design of Solid-State Transformers

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Introduction:

With the rapid growth of artificial intelligence and cloud computing, the power density and total electricity consumption of data centers keep rising, and the power demand of a single rack is moving from tens of kilowatts toward the megawatt level. The conventional “medium-voltage distribution + line-frequency transformer + low-voltage UPS” architecture is approaching its limits in efficiency, footprint, and scalability. By adopting high-frequency isolation and multi-stage power conversion, the solid-state transformer (SST) enables direct and efficient interconnection between medium-voltage grids and data centers. It significantly reduces distribution losses and cabling costs, and is naturally compatible with DC sources and loads such as photovoltaics and battery storage, making it a key apparatus for future green data-center power systems. This special session focuses on recent advances in SSTs for data-center applications. The topics of interest include, but are not limited to:
1. Novel SST topologies for data centers and new power supply architectures;
2. Modeling, control, and stability of SSTs (voltage/power control, voltage and current balancing among modules, fault ride-through, and redundant operation);
3. High-frequency magnetic component design, wide-bandgap device (SiC/GaN) applications, high-frequency insulation, and EMI/EMC;
4. Thermal design, reliability, protection, and system integration of SSTs;
5. Coordinated operation of SST with photovoltaics, energy storage, and hydrogen systems.

SS06's Session Chair:

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TBA

SS06's Session Co-chairs:

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Prof. Kai Li, Beijing Jiaotong University, China