| 基于小波分析的变压器励磁涌流和故障电流识别方法 |
| |
| 引用本文： | 郭志燊.基于小波分析的变压器励磁涌流和故障电流识别方法[J].水利电力机械,2006,28(10):60-62. |
| |
| 作者姓名： | 郭志燊 |
| |
| 作者单位： | 广东电网集团佛山南海供电局 广东佛山528200 |
| |
| 摘 要： | 用PSCAD仿真软件搭建励磁涌流和故障电流仿真模型,并利用小波理论进行涌流特征提取,通过小波变换的模局部极大值的特性提取励磁涌流的特征。仿真结果表明,小波变换可以很好地鉴别励磁涌流和变压器内部故障电流,准确地判断出电流突变性质。
|
| 关 键 词： | 励磁涌流 故障电流 小波分析 |
| 文章编号： | 1006-6446(2006)10-0060-03 |
| 修稿时间： | 2006年6月13日 |
Method on the discrimination between excitation inrush current and fault current of transform based on wavelet analysis |
| |
| GUO Zhi-shen.Method on the discrimination between excitation inrush current and fault current of transform based on wavelet analysis[J].Water Conservancy & Electric Power Machinery,2006,28(10):60-62. |
| |
| Authors: | GUO Zhi-shen |
| |
| Abstract: | In this paper,we build model of inrush current and fault current using PSCAD software,and use wavelet transform to extract characteristic of the inrush current.The simulations show that this method is valid and also possesses fast detecting ability. |
| |
| Keywords: | excitation inrush current fault current wavelet analysis |
| 本文献已被 CNKI 等数据库收录！ |
