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Identification and classification of voltage sags in distribution system using wavelet transform and Support Vector Machines | |
Chen, Wei; Hao, Xiaohong; Lin, Jie | |
2006 | |
会议名称 | 2006 China International Conference on Electricity Distribution, CICED 2006 |
会议录名称 | IET Conference Publications |
期号 | 527 CP |
页码 | 154-159 |
会议日期 | September 17, 2006 - September 20, 2006 |
会议地点 | Beijing, China |
出版者 | Institution of Engineering and Technology |
摘要 | Voltage sags have become an important power quality issue in power system over the past several years. Voltage sags are short duration reductions in RMS voltage, mainly caused by short circuits, transformer energizing, and starting on large motors. Aim of this paper is to show that certain types of voltage sags should be considered in the analysis of monitoring data in a large number of recordings. Voltage sags were analyzed based on a PSB simulation model. Then presents a method to identify voltage sags in distribution system using a novel combination of wavelet transform and support vector machines. The simulated waves were discomposed into 7 levers using wavelet transform, afterwards, the energy features, extracted from the wavelet coefficients under different levers, were employed as the inputs of the Support Vector Machines to identify and classify different voltage sags. The results of simulation show the proposed method is simple and validity. |
关键词 | Electric utilities Power quality Support vector machines Vectors Different voltages Distribution systems Energy feature Short durations Simulation model Transformer energizing Voltage sags Wavelet coefficients |
收录类别 | EI |
语种 | 英语 |
EI入藏号 | 20084011618085 |
EI主题词 | Wavelet transforms |
来源库 | Compendex |
分类代码 | 706.1.2 Electric Power Distribution - 723 Computer Software, Data Handling and Applications - 921.1 Algebra - 921.3 Mathematical Transformations |
文献类型 | 会议论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/117013 |
专题 | 电气工程与信息工程学院 |
作者单位 | College of Electrical and Information Engineering, Lanzhou University of Technology, No.287, Langongping Road, Lanzhou 730050, China |
第一作者单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Chen, Wei,Hao, Xiaohong,Lin, Jie. Identification and classification of voltage sags in distribution system using wavelet transform and Support Vector Machines[C]:Institution of Engineering and Technology,2006:154-159. |
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