| 基于S变换的电能质量扰动分析 |
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| 引用本文： | 宋万清,费毓婧,马丹丹. 基于S变换的电能质量扰动分析[J]. 上海工程技术大学学报, 2011, 25(4): 342-345. DOI: 10.3969/j.issn.1009-444X.2011.04.013 |
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| 作者姓名： | 宋万清 费毓婧 马丹丹 |
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| 作者单位： | 上海工程技术大学电子电气工程学院,上海,201620 |
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| 基金项目： | 上海工程技术大学科研创新项目(CX1002005) |
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| 摘 要： | 针对电能质量扰动信号的特征,提出一种基于S变换模矩阵的信号检测与分类方法,并对电能质量扰动信号进行分类.对电能质量扰动信号的电压凹陷、电压尖峰、暂态随机干扰等现象应用S变换分析,构造等值时频图,从而清晰直观地显现出电压干扰.
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| 关 键 词： | 电能质量 S变换 模矩阵 时频分析 |
Analysis of Power Quality Disturbances Based on S-Transform |
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| SONG Wan-qing , FEI Yu-jing , MA Dan-dan. Analysis of Power Quality Disturbances Based on S-Transform[J]. Journal of Shanghai University of Engineering Science, 2011, 25(4): 342-345. DOI: 10.3969/j.issn.1009-444X.2011.04.013 |
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| Authors: | SONG Wan-qing FEI Yu-jing MA Dan-dan |
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| Affiliation: | SONG Wan-qing,FEI Yu-jing,MA Dan-dan (College of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China) |
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| Abstract: | According to the main features of power quality disturbance signals,one detection and classification method of voltage signal based on S transform module matrix was proposed,and the power quality with disturbance signals were classified.The S-transform was applied to analyze the power quality disturbance signals such as the voltage sag,voltage spike,transient random disturbance and the time-frequency contour maps constructed can display different voltage disturbances intuitively. |
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| Keywords: | power quality S-transform module matrix time-frequency analysis |
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