Energy storage system and method for rural power grid

By improving the protection algorithm and dynamic threshold calculation, the overcharging and over-discharging problems in rural power grid energy storage have been solved, achieving extended battery life, improved system safety, and efficient utilization of new energy sources, and adapting to the load characteristics of rural power grids.

CN121727085BActive Publication Date: 2026-04-28TIANJIN UNIV
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Patent Information

Application Number
CN202610226772.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-02-26
Publication Date
2026-04-28
Estimated Expiration
2046-02-26

AI Technical Summary

Technical Problem

Existing energy storage methods for rural power grids suffer from overcharging and over-discharging issues, which shorten the lifespan of energy storage batteries, pose safety hazards, and are difficult to adapt to the dispersed nature of rural power grid loads and the instability of new energy power generation.

Method used

An improved overcharge protection algorithm and an improved over-discharge protection algorithm are adopted, combined with dynamic SOC and battery voltage threshold calculation, and battery health status and temperature correction, to monitor and control the charging and discharging process in real time and generate precise control commands.

Benefits of technology

It effectively avoids overcharging and over-discharging, extends battery life, improves the safety and stability of system operation, increases the absorption rate of new energy sources and the balance of grid load, and reduces operation and maintenance costs.

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Abstract

The application discloses a power storage system for a rural power grid and a method thereof, and belongs to the technical field of power storage systems.The power storage system comprises the following steps: step 1, collecting operation parameters of energy storage batteries of the power storage system for the rural power grid and load power of the rural power distribution network and transmitting the operation parameters and the load power to a master station control unit; step 2, performing risk judgment on the energy storage batteries according to the operation parameters by the master station control unit; step 3, generating a control instruction according to a result of the risk judgment by the master station control unit; and step 4, performing a control charging and discharging action according to the control instruction by the master station control unit. The power storage system overcomes the overcharging and overdischarging defects that are prone to occurring in the existing power storage method for the rural power grid, realizes accurate control on a power storage process, prolongs the service life of the energy storage batteries, improves the safety, stability and economy of system operation, and adapts to the demand of in-situ access and consumption of new energy of the rural power grid.
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