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数学形态学滤波在电压闪变检测中的应用
引用本文:黄艳菊,孙强.数学形态学滤波在电压闪变检测中的应用[J].机电产品开发与创新,2011,24(4):143-144,150.
作者姓名:黄艳菊  孙强
作者单位:天津百利机电控股集团有限公司研究院,天津,300232
摘    要:对于有效的检测和控制电压闪变来说,检测精密度和有效性是非常重要的.本文提出了一种基于数学形态学滤波和希尔伯特变换的检测方法.通过希尔伯特变换,闪变信号包络可以被提取出来,包含在电压闪变信号中较高频率的谐波和其它噪声可以通过数学形态学滤波器消除.仿真分析结果表明了本方法的可行性、有效性,为电压闪变参数的提取提供了一种新方...

关 键 词:电压闪变  数学形态学滤波器  Hilbert变换  电能质量

Application of Mathematical Morphology Filter in Voltage Flicker Detection
HUANG Yan-Ju,SUN Qiang.Application of Mathematical Morphology Filter in Voltage Flicker Detection[J].Development & Innovation of Machinery & Electrical Products,2011,24(4):143-144,150.
Authors:HUANG Yan-Ju  SUN Qiang
Affiliation:(Research Institute of Tianjin Benefo Machinery & Electric Holding Group Ltd.,Tianjin 300232,China)
Abstract:Precise detection is very important for monitoring and controlling voltage flicker efficiently.This paper proposes a novel detecting method based on Hilbert transform and mathematical morphology filter.By Hilbert transform,the flicker envelope can be extracted while higher harmonics and other noises contained in voltage flicker can be eliminated by mathematical morphology filter.The simulation indicate that the method can extract the parameters of low-magnitude modulated signal from voltage flicker signal easily and effectively,and it is a new way to extract the parameters of low-magnitude modulated signal.
Keywords:voltage flicker  mathematical morphology filter  Hilbert transform  power quality
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