Energy storage system, control method of energy storage system, electronic device, medium, and product

By introducing a second charge/discharge control module into the energy storage system, the system monitors and switches the abnormal first charge/discharge control module, ensuring the reliability and stability of the energy storage system and solving the system downtime problem caused by PCS module failure.

CN122136949APending Publication Date: 2026-06-02SUNWODA ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUNWODA ELECTRONICS CO LTD
Filing Date
2026-02-03
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In a distributed AC/DC energy storage system, when a PCS module fails and shuts down, the battery cluster cannot participate in charging and discharging, resulting in a decrease in the overall system efficiency or even shutdown, which reduces the reliability and stability of the energy storage system.

Method used

A second charge-discharge control module is introduced into the energy storage system. By monitoring the operating status of the first charge-discharge control module, if an abnormality is found, the control switch of the target battery module is turned off, and the second charge-discharge control module is activated to provide DC power to the target battery module, ensuring the stable operation of the system.

Benefits of technology

This improves the reliability and stability of the energy storage system, ensuring that the second charge and discharge control module can still provide DC power to the battery module in the event of an anomaly in the first charge and discharge control module, thus preventing system shutdown.

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Abstract

This application provides an energy storage system, a control method for the energy storage system, an electronic device, a medium, and a product. The energy storage system includes: a battery module, a first charge / discharge control module, a control switch, a second charge / discharge control module, a busbar, and a control module. The first charge / discharge control module converts AC power from the grid into DC power, which is then input to the battery module. The battery module is connected to the busbar via a corresponding control switch. The second charge / discharge control module is connected to the grid and the busbar. The control module is electrically connected to the control switch and communicatively connected to both the first and second charge / discharge control modules. When the first charge / discharge control module malfunctions, it controls the target control switch to close, thereby controlling the second charge / discharge control module to start operating and input DC power to the target battery module. Based on the energy storage system provided in this application, the stability and reliability of the system can be improved.
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