Power distribution network partition dynamic voltage control method and system based on wind-solar-storage cooperation

By employing a zoned dynamic voltage control method that integrates wind, solar, and energy storage, and using real-time power flow calculation and K-means clustering for zoned distribution, combined with a two-layer collaborative control architecture and distributed optimization, the uncertainty and rapid fluctuation of wind, solar, and energy storage resources in the distribution network are resolved. This achieves efficient voltage control and new energy consumption, while reducing system operating costs.

CN121863443APending Publication Date: 2026-04-14PANJIN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
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Patent Information

Application Number
CN202511959384.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-24
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing power distribution network voltage control methods struggle to achieve real-time, rapid response when faced with the uncertainties and rapid fluctuations of wind, solar, and energy storage resources. Rigid zoning strategies result in low control accuracy and efficiency, and the failure to finely coordinate wind, solar, and energy storage resources affects the absorption of new energy and system operating costs.

Method used

A zoned dynamic voltage control method integrating wind, solar, and energy storage is adopted. Dynamic clustering and partitioning are performed through real-time power flow calculation and K-means clustering algorithm to construct a two-layer collaborative control architecture. Distributed optimization is performed by combining the alternating direction multiplier method to achieve global optimization and local rapid adjustment. A multi-objective energy storage optimization configuration model is established, and an improved particle swarm optimization algorithm is used for energy storage configuration.

Benefits of technology

It improves the robustness and real-time control performance of the distribution network to complex disturbances, enhances the efficiency of voltage coordination control within zones, achieves local reactive power balance, strengthens the capacity for renewable energy absorption, and reduces system operating costs.

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Abstract

The invention relates to the technical field of smart power grids, and discloses a wind-solar-storage coordinated power distribution network partition dynamic voltage control method and system, and the method achieves the precise self-adaptive division of control sub-regions through the dynamic clustering partition based on real-time voltage sensitivity. A double-layer cooperative control framework of'centralized optimization-decentralized execution 'is constructed, and distributed rolling optimization is performed by adopting an alternating direction multiplier method, so that the unification of global coordination and quick local response is realized; a multi-target energy storage optimization configuration model considering wind and light uncertainty is established and is deeply coordinated with an operation control strategy. Therefore, the effects of improving the voltage control precision, the response speed and the robustness of the high-proportion new energy power distribution network are achieved, and meanwhile, the system economy, the power supply reliability and the comprehensive utilization efficiency of wind, light and storage resources are remarkably improved.
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