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Solid-state transformer technology has achieved a breakthrough, making it suitable for AI data centers and next-generation power grids.

2026-04-13

Power electronic (solid-state) transformers (SSTs) replace traditional iron cores with third-generation semiconductors, offering high efficiency, compact size, fast response, and flexible AC–DC conversion.
Solid-state transformer technology has achieved a breakthrough, making it suitable for AI data centers and next-generation power grids.

Power‑electronic (solid‑state) transformers (SSTs) replace traditional iron cores with third‑generation semiconductors, offering high efficiency, compact size, fast response, and flexible AC–DC conversion. In March 2026, a seminar on the development of power‑electronic transformer technology and a launch event for industry standards were held, advancing the standardization and industrialization of SST technology. Sifang Shuzhi’s SST 1.0 has entered mass production, featuring direct 10 kV high‑voltage input and direct 800 V DC output, tailored to the power supply architecture of AI data centers. The SST achieves an efficiency exceeding 98.5%, reduces its footprint by 90% compared with conventional transformers, and delivers response times on the order of one microsecond, meeting the demands of data centers, ultra‑fast charging stations, and DC distribution networks. Currently, SSTs are in the prototype validation and small‑scale commercial deployment phases; large‑scale adoption is expected between 2027 and 2030, positioning SSTs as a key technological pathway for next‑generation power transmission and conversion.

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