Huawei UPS5000-E-30 kVA-FM - Working Principle; Conceptual Diagram; Working Modes; Normal Mode

2.2 Working Principle
NO TE
● indicates an input mode.
●
indicates the direction of energy ow.
2.2.1 Conceptual Diagram
The UPS5000 is an online product. It uses a modular design, which facilitates
maintenance and capacity expansion. The UPS5000 adopts intelligent control. Its
power module consists of a
rectier, inverter, and DC/DC converter. The UPS5000
converts inputs into pure high-quality sine wave outputs by using the high-
frequency switching technology.
Figure 2-2 UPS conceptual diagram
2.2.2 Working Modes
2.2.2.1 Normal Mode
In normal mode, the rectier converts AC power into DC power, and then the
inverter converts the DC power into high-precision AC outputs. The conversions
protect loads from interference such as input harmonics, glitches, and voltage
transients.
UPS5000-E-(30 kVA–120 kVA)-FM
User Manual 2 Overview
Issue 03 (2022-01-30) Copyright © Huawei Technologies Co., Ltd. 17