一种偏远电网中低压电能表相位分布优化方法及系统

By combining wavelet transform and Fourier spectral analysis with support vector machine classification, the phase distribution of low-voltage energy meters in remote power grids is optimized, solving the problems of phase imbalance and isolated nodes, and improving the stability and reliability of the power grid.

CN121479538BActive Publication Date: 2026-07-17JIANGYIN CHANGYI GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGYIN CHANGYI GRP CO LTD
Filing Date
2025-09-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In remote mountainous areas, the unbalanced phase distribution of low-voltage electricity meters and the problem of isolated nodes in the power grid lead to abnormal current fluctuations, power loss and equipment damage. Traditional methods are difficult to adapt to the data characteristics in complex environments, resulting in misjudgments or omissions.

Method used

Wavelet transform decomposition and Fourier spectral analysis are used to extract frequency domain features. Support vector machine classification and cross-validation are combined to optimize phase correspondence. Threshold filtering mechanism is used to determine the degree of imbalance. Random forest ensemble and neural network training are used to evaluate the overall stability and generate a stable phase distribution map.

Benefits of technology

It effectively solves the problems of uneven phase distribution and isolated node identification in remote mountainous power grids, improves the balance and reliability of power grid operation, and provides efficient technical support for power grid management in complex environments.

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Abstract

本申请提供一种偏远电网中低压电能表相位分布优化方法及系统,包括:基于相位标签分配规则,采用支持向量机分类对电能表电压数据进行分类,得到相位对应关系,并通过交叉验证优化调整所述相位对应关系,确定调整后的相位验证序列;根据所述不平衡程度,采用有效值计算方法对电压数据进行再处理,得到再处理后的电压波动分量,并通过分解层级控制方法细化所述电压波动分量,确定多尺度细化序列;根据调整后的标签分配规则,采用随机森林集成对再处理后的电压波动分量进行分类,得到细化相位对应关系,并通过混淆矩阵分析评估所述细化相位对应关系,确定最终验证序列。本发明可有效解决偏远山区电网相位分布不均及孤立节点识别难题,提升电网运行的平衡性和可靠性,为复杂环境下电网管理提供高效技术支持。
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