Sequential Simulation of Solid-State Transformer-Driven 800 VDC Data Centers

Jian Xu et al. (9 authors) submitted an arXiv paper on 23 Jan 2026 presenting a reproducible RTDS evaluation and control design for an SST-driven 800 VDC data-center power architecture.

• Main announcement/action: The paper proposes an SST-driven 800 VDC architecture that converts 10 kV MVAC to an 800V LVDC bus using a three-phase H-bridge AC/DC stage cascaded with a dual-active-bridge (DAB) DC/DC stage; it includes a coordinated closed-loop control scheme (rectifier voltage/current regulation + DAB phase-shift control) and is implemented on the real-time digital simulation (RTDS) platform. Submission date: 23 Jan 2026; authors: Jian Xu and 8 co-authors.
• Evaluation and key results: System evaluated via sequential simulations with real-world day- and month-scale operating profiles, benchmarked against a UPS supply chain; reported outcomes include tight 800 VDC regulation, reduced input-side energy consumption compared with the UPS baseline, satisfactory power-quality performance, and a capacitance sensitivity test that yields a practical capacitance design range.