AIDC · Solution 03
MV Direct Conversion
A Solid-State Transformer (SST) converts utility-level medium-voltage AC directly into HVDC for distribution across the data hall.
Grid-to-chip power architecture diagram: medium-voltage utility supply converted through an Arete solid-state transformer or transformer and rectifier stage to an 800 V DC bus, feeding power supply shelves, battery backup shelves and the GPU board inside the compute rack.
Products
In development
Solid-State Transformer (SST)
Connects directly to the 6.6–13.8 kV or 22–35 kV medium-voltage grid and converts medium-voltage AC into a regulated 800 VDC or ±400 VDC bus. By eliminating the conventional line-frequency transformer and intermediate low-voltage AC distribution stages, the SST creates a shorter, more controllable grid-to-HVDC power path with higher power density and a smaller equipment footprint.
- Input voltage options: 6.6–13.8 kVAC or 22–35 kVAC
- Available in 3.15 MW and 7.2 MW configurations
- Peak efficiency of over 98.5%
- Regulated 800 VDC or ±400 VDC output with ±1% voltage accuracy and no more than ±0.5% ripple
- Configurable battery storage capacity for the required backup duration
- Configurable N+X modular power-cell redundancy
- Optimized DC droop control for autonomous current sharing among parallel units
In development
Direct Current Power Supply Unit (DC PSU) Shelf
Converts high-voltage DC power into a stable, lower DC voltage required by servers, delivering efficient and reliable power to high-density computing systems.
- 50 VDC output
- Air- or liquid-cooled thermal options: >98.2% peak efficiency (air); >98.7% (liquid)
- Power density of 112.54 W/in³
- Super-cap built-in design, 20 ms hold-up time at 100% load
In development
HVDC Load Power Smoother (HVDC LPS)
Smooths transient load swings on the high-voltage DC bus, holding a stable current profile upstream of the conversion stage.
- Bi-directional current control on the bus
- Carries no load power
- Sources and sinks to flatten fast load swings
- Supercapacitor storage
- Hot-swappable modules
- Designed for high-power rack form factors used across the industry