Conceptual Diagram; Working Modes; Normal Mode - Huawei UPS5000-A-500 kVA User Manual

UPS5000-A-500 kVA
User Manual (e-shelter)

2.2.1 Conceptual Diagram

The UPS5000-A is an online double-conversion UPS that uses digital signal processing (DSP)
technology and features high efficiency and high power density.
conceptual diagram for the UPS.
Figure 2-2 UPS conceptual diagram

2.2.2 Working Modes

2.2.2.1 Normal Mode

When the UPS works in normal mode, the rectifier converts the AC input voltage into the DC
voltage, which is then raised to the bus voltage by the power factor correction (PFC) circuit.
Then one part of the voltage passes through the DC-DC circuit to charge the battery string,
and the other part is converted by the inverter into AC voltage outputs. The two conversions
ensure high-precision and high-quality output voltages, protecting loads from interferences
such as input harmonics, burrs, and voltage transients.
diagram of the UPS working in normal mode.
Issue 02 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
Figure 2-2 shows a
Figure 2-3 shows the conceptual
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