Solid-state Transformer (SST)
Solid-state transformer (SST)
As global electricity demand surges-driven by data centers, transport electrification, growing industrial use, and rising cooling needs-traditional power grids face significant strain. Solid-state transformers (SSTs) offer a game-changing solution, redefining how public grids connect to end devices. SSTs leverage advanced semiconductor technology to create a universal power electronic stack, replacing traditional architectures based on low-frequency transformers. As a global leader In Power electronics, Infineon empowers energy-efficient SST designs. With a comprehensive, ready-to-use portfolio, Infineon covers everything from power conversion and microcontrollers to security, auxiliary power supply, sensing and communication.
Solid-state transformer (SST) applications and use cases
SSTs offer transformative benefits across high-impact applications:
In AI data centers, SSTs provides facility-level powering of IT racks, saving valuable space and enabling denser IT rack clustering. SSTs also lower total cost of ownership through greater efficiency and scalability.
For Electric Vehicle (EV) charging, they minimize substation footprint and copper use, reducing costs and complexity. They also support bidirectional power flow, enabling enhanced grid services.
In Photovoltaic (PV) systems, they integrate solar energy efficiently by managing variable output, enhancing grid stability, and supporting advanced energy management.
For Battery Energy Storage Systems (BESS), they improve efficiency with bidirectional power flow, voltage regulation, and seamless integration with renewables for reliable energy storage.
In industrial DC microgrids, e.g. in cities and factories, SSTs integrate distributed energy resources, support bidirectional power flow, and offer real-time monitoring, creating smarter and more resilient grids capable of managing dynamic loads.