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首页> 外文会议>IEEE Conference on Systems, Process and Control >Comparison of real time voltage sag detection based on discrete and continuous wavelet transform in LabVIEW
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Comparison of real time voltage sag detection based on discrete and continuous wavelet transform in LabVIEW

机译：LabVIEW中基于离散和连续小波变换的实时电压暂降检测的比较

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摘要

This paper present the real time voltage sag detection and analysis using discrete and continuous wavelet transform. The real time analysis is carried out in Labview software with the aid of voltage measurement data acquisition module to display the resulting wavelet coefficient corresponding to the acquired voltage signal generated by Chroma Programming. The time delay for the voltage sag detection in both algorithms is evaluated and represent in this paper. The comparison result shows that the implementations of continuous wavelet transform provide better time resolution for the voltage sag event with smaller detection time delay compared to discrete wavelet transform. By using an appropriate data acquisition module and Labview software implementation, execution of continuous wavelet transform in real time voltage sag detection is possible and more accurate especially in electrical system that contains high amount of noise.
机译：本文提出了使用离散和连续小波变换的实时电压暂降检测和分析。实时分析是在Labview软件中借助电压测量数据采集模块进行的，以显示与由色度编程生成的采集电压信号相对应的所得小波系数。评估了两种算法中电压跌落检测的时间延迟，并在本文中进行了介绍。比较结果表明，与离散小波变换相比，连续小波变换的实现为电压骤降事件提供了更好的时间分辨率，并具有更小的检测时间延迟。通过使用适当的数据采集模块和Labview软件实现，可以在实时电压骤降检测中执行连续小波变换，并且更加准确，特别是在包含大量噪声的电气系统中。

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