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Overview
The SmartLi provides lithium battery backup power for medium- and high-power
UPSs. It is compatible with UPSs with or without a battery neutral wire. The
lithium battery cabinet supports power backup, battery management, and
intelligent current management. When multiple battery strings are connected in
parallel, the output of each battery string is balanced and reliable protection is
achieved.
2.1 Positioning and Features
2.1.1 Positioning
The SmartLi is a battery energy storage system solution developed for Huawei
UPS. The product provides cabinet-level battery management, and up to 15
cabinets can be connected in parallel to meet the requirements for MW-level UPS
backup power. The product uses lithium cells with superior charge and discharge
characteristics and high cycle performance. The modular design of key
components facilitates replacement and greatly reduces O&M costs.
The lithium battery system applies to the following scenarios:
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Large-sized data centers
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Small- and medium-sized data centers
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Rail transits
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State grids
2.1.2 Features
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Easy capacity expansion: Batteries can be added along with load increase by
stages. New and old battery cabinets can be connected in parallel.
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Easy maintenance: Batteries can be swapped for maintenance due to the
modular design.
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High cycle performance of cells: 25°C, 0.5C charging/1C discharging, 50%
depth of discharge (DOD), 5000 cycles at 70% end of life (EOL).
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High reliability: Current equalization control technology is used for cabinets
connected in parallel to keep current imbalance within 2%.
SmartLi 2.0
User Manual
2 Overview
Issue 09 (2022-01-30)
Copyright © Huawei Technologies Co., Ltd.
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