| 基于小波变换理论的电压暂降分析 |
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| 引用本文： | 刘芳,陈君诚,韩璐,许丽云.基于小波变换理论的电压暂降分析[J].微计算机信息,2010(13). |
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| 作者姓名： | 刘芳 陈君诚 韩璐 许丽云 |
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| 作者单位： | 山西大学; |
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| 摘 要： | 电压暂降对计算机等敏感设备影响较为严重。本文从小波变换理论出发,利用Mallat分解算法将电压暂降信号分解成近似部分和细节部分。通过仿真分析表明近似部分的小波系数可以反映电压暂降幅值,细节部分的小波系数可以反映电压暂降的持续时间。
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| 关 键 词： | 小波变换 电压暂降 |
Voltage Sags Analysis based on Wavelet Transform |
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| LIU Fang CHEN Jun-cheng HAN Lu XU Li-yun.Voltage Sags Analysis based on Wavelet Transform[J].Control & Automation,2010(13). |
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| Authors: | LIU Fang CHEN Jun-cheng HAN Lu XU Li-yun |
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| Abstract: | Voltage sags have much influence to computer equipments. This paper based on wavelet transform introduces a method, which divides sags signals into approximate part and specific part by Mallat algorithm. It is testified that the wavelet coefficient of approximate part can be used to measure depth of voltage sags, and the wavelet coefficient of specific part can be used to measure length of voltage sags. |
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| Keywords: | wavelet transform voltage sags |
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