The structural feature of this power system is that the power systems for DC loads and AC loads both use -48V busbar as input power. When the mains or rectifier fails, the -48V busbar power supply is uninterrupted because the battery is connected in parallel with the output busbar. The DC load is directly powered by the -48V busbar, and the AC load is powered by the inverter, that is, the inverter powered by -48V DC power replaces the UPS.
Hybrid system solution advantages:
The technology is mature, and the 48V power supply is a true uninterruptible power supply. Its output is pure, so the overall stability of the system is improved. It is not easy to arc, and it is highly safe.
Hybrid system solution disadvantages:
The number of power conversions is increased in the power chain of the AC load, and the voltage is low and the current is large, which increases losses and reduces system efficiency.
This power supply system structure is only suitable for situations where the AC load is small or medium power.
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