DETECTION OF THE PARTIAL DISCHARGE PULSE IN POWER TRANSFORMER  BASED ON CONTINUOUS WAVELET TRANSFORMATION

LI Xiangfei  1; ZOU Lihua  2; ZHANG Taishan  1

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DETECTION OF THE PARTIAL DISCHARGE PULSE IN POWER TRANSFORMER BASED ON CONTINUOUS WAVELET TRANSFORMATION

更新时间：2025-04-26

- DETECTION OF THE PARTIAL DISCHARGE PULSE IN POWER TRANSFORMER BASED ON CONTINUOUS WAVELET TRANSFORMATION
- High VoltageApparatus Issue 3, Pages: 33-35(2001)
- 作者机构：
  
  1.   中南大学信息科学与工程学院!湖南长沙410083株洲工学院电气工程系
  2.   湖南株洲412008
  3.   株洲工学院电气工程系!湖南株洲412008
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM41
- Published：2001
- 稿件说明：
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[1]李祥飞,邹莉华,张泰山.基于连续小波变换的电力变压器局放信号检测[J].高压电器,2001(03):33-35.

LI Xiangfei 1, ZOU Lihua 2, ZHANG Taishan 1. DETECTION OF THE PARTIAL DISCHARGE PULSE IN POWER TRANSFORMER BASED ON CONTINUOUS WAVELET TRANSFORMATION[J]. High voltageapparatus, 2001, (3): 33-35.
[1]李祥飞,邹莉华,张泰山.基于连续小波变换的电力变压器局放信号检测[J].高压电器,2001(03):33-35. DOI：

LI Xiangfei 1, ZOU Lihua 2, ZHANG Taishan 1. DETECTION OF THE PARTIAL DISCHARGE PULSE IN POWER TRANSFORMER BASED ON CONTINUOUS WAVELET TRANSFORMATION[J]. High voltageapparatus, 2001, (3): 33-35. DOI：

摘要

本文采用了不同小波函数及不同尺度参数对含强载波干扰的局部放电信号进行连续小波变换

并对小波变换结果进行了定量对比分析。仿真结果表明

在采样频率一定的情况下

不同的小波函数只有在各自的最佳尺度参数下对干扰的抑制能力才是最强的

因此

只有选取合适的小波函数及其最佳尺度参数才能更加有效地抑制周期载波干扰。

Abstract

This paper introduces a continuous wavelet transformation for detecting the disturbed partial discharge pulse in power transformer by using different wavelet functions and scale parameters and analyses the result of wavelet transformation. The result of emulation shows that different wavelet function has different optimal scale parameter. Therefore

optimal wavelet function and scale parameter shall be choosed carefully in order to detect the partial discharge.

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