| 基于单基频S变换的电压凹陷分类 |
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| 引用本文： | 程 焰,易吉良,张 帅,杨晓芳,刘小文.基于单基频S变换的电压凹陷分类[J].湖南工业大学学报,2016,30(4):21-26. |
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| 作者姓名： | 程 焰 易吉良 张 帅 杨晓芳 刘小文 |
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| 作者单位： | 湖南工业大学,湖南工业大学,湖南工业大学,湖南工业大学,湖南工业大学 |
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| 基金项目： | 国家自然科学基金资助项目（61503131），湖南省教育厅科学研究基金资助项目（14C0327） |
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| 摘 要： | 针对S变换计算量大的问题,提出了一种基于单基频S变换的电压凹陷分类方法。首先通过单基频S变换得到单基频S变换模向量;然后,从该向量提取凹陷信号幅值突变点个数、凹陷幅值和凹陷幅值标准差等特征量;最后,将这些特征量输入决策树对电压凹陷信号进行分类。仿真结果验证了该方法对电压凹陷分类的有效性。
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| 关 键 词： | 单基频S变换 电压凹陷 幅值突变点 凹陷幅值 凹陷幅值标准差 |
| 收稿时间： | 2016/4/14 0:00:00 |
Classification of Voltage Sags Based on Single Fundamental Frequency S-Transform |
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| CHENG Yan,YI Jiliang,ZHANG Shuai,YANG Xiaofang and LIU Xiaowen.Classification of Voltage Sags Based on Single Fundamental Frequency S-Transform[J].Journal of Hnnnan University of Technology,2016,30(4):21-26. |
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| Authors: | CHENG Yan YI Jiliang ZHANG Shuai YANG Xiaofang and LIU Xiaowen |
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| Affiliation: | Hunan University of Technology,Hunan University of Technology,Hunan University of Technology,Hunan University of Technology and Hunan University of Technology |
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| Abstract: | In view of the large computational quantity involved in the S-transform, a new classification of voltage sags, which is based on single fundamental frequency S-transform, has been proposed for its improvement. First, the acquisition of module vector is achieved through S-transform of single fundamental frequency, followed by the extraction of such characteristic parameters as mutation point numbers, sag magnitude and sag amplitude standard deviation from this vector. Finally, a classification is made of voltage sag signals based on the characteristic parameters input in the decision tree. Simulation results show that the proposed method is effective for the classification of voltage sags. |
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