A method and system for dispatching reserve resources of a power system

By constructing an economic dispatch model and improving the spectral clustering algorithm, and combining reserve tension scores and topological connectivity, regions with scarce and surplus reserve resources are identified. This solves the problems of accuracy and economy in reserve resource allocation in existing technologies, and realizes the safe operation and optimized resource dispatch of high-proportion renewable energy power grids.

CN122371309APending Publication Date: 2026-07-10CHINA SOUTHERN POWER GRID COMPANY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA SOUTHERN POWER GRID COMPANY
Filing Date
2026-03-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

In power systems with a high proportion of renewable energy, the cross-regional allocation of reserve resources relies on dispatcher experience or fixed electrical zones, resulting in poor accuracy, economic efficiency, and timeliness that cannot meet the safe operation requirements of power grids with a high proportion of renewable energy. It is also impossible to accurately locate areas with tight and surplus reserves, and there is a lack of dynamic updating mechanisms.

Method used

By acquiring real-time and forecast data of the power system, an economic dispatch model is constructed, a reserve capacity allocation plan is calculated, and an improved spectral clustering algorithm is used to dynamically partition the system based on reserve tension scores and topological connectivity. This identifies areas with scarce and surplus reserve resources, and a capacity dispatch strategy is generated based on a cross-regional reserve resource dispatch optimization model to achieve precise allocation of reserve resources.

Benefits of technology

It enables precise location and dynamic allocation of backup resources, improves the targeting accuracy and economy of cross-regional support, and ensures the safe operation of the power system and the efficiency of resource utilization.

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Abstract

This invention discloses a method and system for allocating reserve resources in a power system. The method comprises: acquiring real-time operating data and predicted data of the power system at the current scheduling moment; inputting the real-time operating data and predicted data into a preset economic dispatch model considering unit reserves, solving for a reserve capacity allocation plan, and calculating the reserve stress score of each grid node under the current operating state based on the reserve capacity allocation plan; constructing a comprehensive similarity matrix by combining the reserve stress scores and the topological connectivity of the power system, and using an improved spectral clustering algorithm to cluster the comprehensive similarity matrix to obtain reserve resource-scarce regions and reserve resource-sufficient regions; solving a cross-regional reserve resource dispatch optimization model to obtain a capacity dispatch strategy for resource allocation. Therefore, this invention can accurately allocate reserve resources from resource-sufficient regions to resource-scarce regions.
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