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| 一种电能质量扰动检测的综合方法 | |
| 引用本文： | 朱韬析,王超,雒铮. 一种电能质量扰动检测的综合方法[J]. 江南大学学报(自然科学版), 2007, 6(5): 560-564 |
| 作者姓名： | 朱韬析 王超 雒铮 |
| 作者单位： | 1. 南方电网超高压输电公司广州局,广东,广州,510405 2. 浙江大学,电气工程学院,浙江,杭州,310027;浙江电力调度通信中心,浙江,杭州,310007 3. 广东省电力设计研究院,广东,广州,510600 |
| 摘 要： | 为了快速、准确地检测、识别电能质量扰动,文中提出了一种电能质量扰动检测的综合方法:首先用小波变换对原始信号做消噪处理,然后在时域检测扰动的开始和结束时间,根据扰动信号的周期和峰值,识别扰动信号的类型,最后在发生扰动的时间段内采用快速傅立叶算法等方法计算扰动信号的相关指标参数.仿真结果表明,这种方法快速、准确,为应用化技术提供了一种有效的方法. |
| 关 键 词： | 电能质量扰动检测 小波技术 软阈值 时域 过零点 快速傅立叶算法 |
| 文章编号： | 1671-7147（2007）05-0560-05 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-05-17 |
A Synthetical Method of Measurement of Short Duration Power Quality Disturbances |
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| ZHU Tao-xi,WANG Chao,LUO Zheng. A Synthetical Method of Measurement of Short Duration Power Quality Disturbances[J]. Journal of Southern Yangtze University:Natural Science Edition, 2007, 6(5): 560-564 | |
| Authors: | ZHU Tao-xi WANG Chao LUO Zheng |
| Affiliation: | 1. Guangzhou Burea.u, EHV Power Transmission Company of China Southern Power Grid, Guangzhou 510405, China; 2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; 3. Zhejiang Power Dispatch and Communication Center, Hangzhou 310007, China; 4. Guangdong Electric Power Design Institute, Guangzhou 510600, China |
| Abstract: | The paper introduces a synthetical method for measuring duration to power quality disturbances.Firstly,the wavelet transform is used to de-noise by soft-threshold algorithm.Secondly,a difference signal is formed for detecting the beginning and the ending time of the disturbance and identified the disturbance signals based on different period and peak value.Finally,the range of the disturbance and other parameters are calculated through Fourier transform. |
| Keywords: | duration power quality disturbances wavelet transform soft-threshold time domain zero crossing point fast Fourier transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |