A distributed photovoltaic energy storage system and grid control operation method, device, equipment and medium

By simulating different energy storage capacities of distributed photovoltaic energy storage systems connected to the distribution network, an optimal energy storage strategy was constructed, which solved the problem of operational failures after the distribution network was connected to external energy storage systems, and improved the safety and stability of the power grid.

CN120749820BActive Publication Date: 2026-01-09KUNMING AUTOMATION WHOLE SET OF EQUIP BUSINESS CO LTD
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Patent Information

Application Number
CN202511134454.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2026-01-09
Estimated Expiration
2045-08-14

AI Technical Summary

Technical Problem

In existing technologies, after a distribution network is connected to an external energy storage system, the operating status of the power grid becomes unpredictable, which may lead to operational failures and affect the security of the power grid.

Method used

By simulating the target distribution network and the minimum distribution network with different energy storage capacities connected to the distributed photovoltaic energy storage system, rich sample data are obtained to construct the optimal energy storage strategy. This includes simulating N-1 extreme power failure rate and load balancing rate data for dual screening to determine the optimal energy storage strategy for the optimal time period.

Benefits of technology

It improves the safety and operational stability of the distribution network, ensures fault-free operation of the grid when connecting to external energy sources, and enhances the reliability and confidence of the strategy.

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Abstract

The application discloses a kind of distributed photovoltaic energy storage system and grid control operation method, device, equipment and medium, comprising: determining the first N-1 limit outage rate data of minimum distribution electronic island and the first load balancing rate data of minimum distribution electronic network;Determine the second N-1 limit outage rate data of minimum distribution electronic island and the second load balancing rate data of the minimum distribution electronic network;Determine several energy storage strategies under time period;According to the first load balancing rate data and the second load balancing rate data under several time periods, the optimal time period energy storage strategy under the time period is obtained by screening several energy storage strategies under the time period;According to the optimal time period energy storage strategy under several time periods, the optimal energy storage strategy of distributed photovoltaic energy storage system is obtained.The application belongs to the field of grid control strategy.The application can improve the safety of distribution network operation.
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