Power grid security guarantee method and system for large-scale power grid power transformer power regulation

By constructing a digital twin model of the transformer and dividing the control subnet, the problem of insufficient control accuracy and safety of power grid transformers was solved, and scientific power control and global optimization were achieved.

CN122418679APending Publication Date: 2026-07-17西交网络空间安全研究院 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西交网络空间安全研究院
Filing Date
2026-06-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the power regulation of power grid transformers suffers from insufficient regulation accuracy and safety, cannot adapt to the time-varying coupling characteristics of new energy output and load, and lacks quantitative assessment of the dynamic safety boundary of transformers, resulting in a lack of scientific basis for regulation commands.

Method used

A digital twin model of the transformer is constructed using a transfer learning algorithm. Combining the electrical topology and the electrical coupling strength across multiple time sections, the control subnet is divided. Power disturbances are simulated using the digital twin model to calculate the power regulation safety margin, generate the optimal control strategy, and perform rolling optimization using model predictive control.

Benefits of technology

It improves the accuracy and safety of power grid transformer regulation, provides a scientific basis for regulation, reduces regulation costs, and achieves forward-looking global optimization.

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Abstract

本发明涉及电网控制领域,尤其涉及一种大规模电网电力变压器功率调控的电网安全保障方法及系统,方法包括:构建待调控电网的变压器数字孪生模型;根据待调控电网的电气拓扑结构和若干个时间断面的电气耦合强度,将待调控电网划分为若干个调控子网;为每一调控子网设置一台区域控制器,当区域控制器监测到所辖的调控子网内任一子网变压器的预测负载功率超过预设的容量阈值时,启动安全调控程序,确定功率调控策略;采用变压器数字孪生模型对功率调控策略进行优化,得到最优功率调控指令,并控制所辖的调控子网内的子网变压器执行最优功率调控指。本发明通过调控子网动态划分和安全调控,有效提高了电网变压器功率调控的准确性、安全性和科学性。
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