Power distribution network partition cooperative control method and system based on boundary node attribution

By identifying critical periods of power synchronization loss and screening boundary nodes of power oscillation, the power supply area affiliation is dynamically adjusted, solving the control conflict problem caused by photovoltaic power output fluctuations in the existing distribution network zone collaborative control, and achieving higher control accuracy and adaptability.

CN122026544AActive Publication Date: 2026-05-12国网浙江省电力有限公司永嘉县供电公司 +1
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Patent Information

Application Number
CN202610459846.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-09
Publication Date
2026-05-12
Estimated Expiration
2046-04-09

AI Technical Summary

Technical Problem

In the existing distribution network zone collaborative control, the power supply area affiliation of boundary nodes is determined based on electrical distance. This leads to complex changes in the electrical characteristics of the power supply area due to the randomness of photovoltaic output and the anti-peak-shaving characteristics in high-penetration photovoltaic access scenarios. This causes conflicts between control commands and actual operating conditions, affecting the accuracy of control.

Method used

By identifying critical periods of power synchronization loss and screening power oscillation boundary nodes, the power supply area affiliation is dynamically adjusted. By utilizing active power time-series curves, photovoltaic injected power data, and historical voltage deviation sequences, the electrical data configuration of boundary nodes is optimized to achieve zoned collaborative control.

Benefits of technology

It improves the accuracy and adaptability of the distribution network zone coordinated control, enhances the ability to cope with random fluctuations in distributed photovoltaic power, and provides reliable support for voltage stability control.

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Abstract

The invention discloses a power distribution network partition cooperative control method and system based on boundary node attribution, and belongs to the technical field of power distribution network control. According to the method, the damaged critical time period is synchronized through the power of the adjacent power supply areas of the active power time sequence curve; according to a power synchronization damaged critical period and a historical voltage deviation sequence, effectively identifying boundary nodes which generate power oscillation after power synchronization is damaged; the power supply area attribution of each power oscillation boundary node of the adjacent power supply areas is evaluated through historical area reconstruction times and a historical voltage deviation sequence, so that dynamic division of the power supply area attribution of the power oscillation boundary nodes can be realized; and finally, configuring the electrical data of each power supply area through the power supply area affiliation of the power oscillation boundary node, thereby realizing the partition cooperative control of the power distribution network, and improving the adaptability and accuracy of the partition cooperative control of the power distribution network.
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