Identification and classification of voltage sags in distribution system using wavelet transform and Support Vector Machines

	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.