Huawei UPS2000-H - Working Principle; Working Modes

2.2 Working Principle
The UPS2000-H system can form a minimum uninterruptible power supply system
(with batteries). The UPS contains main power circuits such as rectier, inverter,
bypass, charge, and discharge, as well as extra-low voltage (ELV) circuits such as
the monitoring circuit and parallel control circuit.
The UPS is not equipped with a monitoring screen. It communicates with a mobile
phone (running Android 8.0, HarmonyOS 2.0, or iOS 9.0, or their later versions)
app over WiFi. It can also be equipped with optional components such as an
SNMP card, dry contact card, and 4G module.
Figure 2-2 Conceptual diagram
2.3 Working Modes
UPS working modes: normal mode, battery mode, bypass mode, ECO mode, and
source-share mode
NO TE
● indicates an input mode.
● indicates the direction of energy ow.
● Normal mode
When the mains is normal, the rectier boosts the mains input voltage to a
stable DC voltage, which is then supplied to the inverter. At the same time,
the mains charges batteries using a charger, and the inverter converts the DC
power into stable AC power to supply loads.
Figure 2-3 Normal mode
UPS2000-H-(6 kVA-10 kVA)
User Manual 2 Product Overview
Issue 03 (2023-08-20) Copyright © Huawei Digital Power Technologies Co., Ltd. 20