一种储能系统及其组串式低压并网设备

By designing string-type low-voltage grid-connected equipment in the energy storage system, the problems of multi-point grid connection and low-voltage grid connection are solved, the equipment size is reduced, the charging and discharging efficiency of battery clusters is improved, and the application scenarios are broadened.

CN224520668UActive Publication Date: 2026-07-17阿特斯储能科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
阿特斯储能科技有限公司
Filing Date
2025-08-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional centralized or string DC-AC conversion modules cannot meet the requirements of multi-point grid connection and low-voltage grid connection, and containerized energy storage systems are large in size, which limits their application scenarios.

Method used

Design a string low-voltage grid-connected device for an energy storage system. It consists of a power conversion compartment and a transformer compartment arranged horizontally and abutting each other in the AC compartment. The power conversion compartment is equipped with a power conversion module, DC terminals, AC terminals and grid-connection terminals. The transformer compartment is equipped with a transformer. The DC terminals of each energy storage converter are connected to the battery cluster. The control module is used to manage the charging and discharging process of the battery cluster.

Benefits of technology

It enables low-voltage grid connection and multi-point grid connection, reduces equipment size, improves the charging and discharging efficiency of battery clusters, prevents circulating current, and broadens the application scenarios of energy storage systems.

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Abstract

本实用新型公开了一种储能系统及其组串式低压并网设备,储能系统的直流舱内设置有多个电池簇,组串式低压并网设备包括:至少一个交流舱;交流舱包括沿水平方向排列且相互抵靠的配电转换舱和变压器舱;配电转换舱内设置有功率转换模块、多个直流接线端子、多个交流接线端子和并网端子;直流接线端子用于与电池簇的充放电端电连接;功率转换模块包括多个储能变流器;各储能变流器的直流端分别与各直流接线端子对应电连接;储能变流器的交流端分别与各交流接线端子对应电连接;变压器舱中设置有变压器;变压器的一次侧与各交流接线端子电连接;变压器的二次侧与所述并网端子电连接。上述技术方案能够满足低压并网和多点并网的需求。
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