Energy management method for energy storage device of urban rail transit based on train operation state

By setting and adjusting charging and discharging thresholds based on train operating status in urban rail transit, the impact of substation no-load voltage differences on energy storage systems has been resolved, enabling timely discharge and balanced utilization of energy storage systems and improving energy-saving performance.

CN116853005BActive Publication Date: 2026-05-29BEIJING BEIJIAO BENYOU TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING BEIJIAO BENYOU TECHNOLOGY CO LTD
Filing Date
2023-07-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies have failed to effectively address the impact of voltage differences between substations on energy storage systems, resulting in untimely discharge of stored energy and uneven utilization, thus affecting energy-saving performance.

Method used

Based on the train's operating status, initial charging and discharging thresholds are set, and the charging and discharging thresholds are dynamically adjusted according to the train's power and operating status. The equivalent train power is calculated using train data or the power of the substation and energy storage system, thereby enabling timely discharge and balanced utilization of the energy storage system.

Benefits of technology

It improves the energy-saving effect of the energy storage system, reduces the energy consumption of the substation, enhances the utilization efficiency of the energy storage system, and solves the problems of the energy storage system being unable to discharge in time and uneven utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a train operation state-based energy management method for a mass transit energy storage device, which comprises the following steps: S1, setting an initial charging threshold and an initial discharging threshold, and ensuring that the initial charging threshold is always higher than the initial discharging threshold; S2, acquiring a train power sum and judging a train operation state according to the train power sum; and S3, formulating an energy storage energy management strategy according to the train operation state. The train operation state-based energy management method for the mass transit energy storage device can improve the charging and discharging thresholds when the train is being pulled, so that the energy storage system can be timely discharged, and the problems of the energy storage system being unable to be timely discharged and the energy storage system being unbalancedly utilized and having poor energy-saving effects are effectively avoided.
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