A voltage disturbance composite detection algorithm

By employing a voltage disturbance composite detection algorithm and utilizing Parker coordinate transformation and dynamic wavelet operator coefficients, the problem of fixed parameters failing to match grid harmonic variations was solved, thereby improving the stability of the power supply system in semiconductor manufacturing plants.

CN122410104APending Publication Date: 2026-07-17KAIDE ELECTRONIC ENG DESIGN CO LTD
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Patent Information

Application Number
CN202610553621.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-24
Publication Date
2026-07-17

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Abstract

本发明涉及电能质量监测与电压扰动检测技术领域，尤其涉及一种电压扰动复合检测算法，包括采集三相瞬时电压信号并执行派克坐标转换提取交直流分量，据此计算电压空间矢量的几何拓扑特征参量；在时域内求解动态预测与更新算子系数以组合成提升小波算子系数；利用从几何拓扑特征参量中提取的独立特征变量对电压信号执行分数阶空间投影，输出投影电压序列；计算绝对相角过零瞬间并利用提升小波算子系数对投影电压序列进行多尺度分解，获得特征系数集，进而通过能量突变点确定电压暂态扰动的发生时刻与跌落幅值。本发明实现了小波参数与动态背景谐波的自适应匹配，提升了扰动检测的可靠性。
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