It can supply power to multiple independent rectifier modules, which naturally form an N+X redundant architecture. If any rectifier module fails, the system can continue operating normally, avoiding the system-level risks caused by single large inverter failures in traditional UPS architectures.

The efficiency of phase-shifting rectifier + HVDC system typically ranges from 96%–99%, significantly higher than that of traditional industrial-frequency UPS systems. It directly reduces losses along the power supply path and is a key factor in lowering the data center’s core energy efficiency metric PUE.

The efficiency curve is flat, maintaining high efficiency even at low load rates (such as 20%–30%), making it highly suited to the actual operating conditions of data centers.

Data centers are typical nonlinear load environments. A 12-pulse rectifier can theoretically eliminate major low-order harmonics such as the 5th and 7th, reducing the input current total harmonic distortion (THDi) from over 30% in a 6-pulse system to below 10%. A 24-pulse configuration can further reduce THDi to below 5%.

The HVDC system removes the inverter and output isolation transformer stages found in traditional UPS systems, resulting in a simpler architecture and fewer failure points.

The equipment has a relatively smaller footprint and higher power density, freeing up more rack space for IT equipment in valuable data center server rooms.