电气技术
電氣技術
전기기술
ELECTRICAL ENGINEERING
2012年
4期
21-25
,共5页
王安%粟时平%邓奇峰%向莎莎
王安%粟時平%鄧奇峰%嚮莎莎
왕안%속시평%산기봉%향사사
小波变换%暂态电能质量%检测%定位
小波變換%暫態電能質量%檢測%定位
소파변환%잠태전능질량%검측%정위
wavelet transform%transient power quality%detection%location
本文深入探讨了暂态电能质量扰动检测与定位的小波变换方法。首先,分析了小波变换的基本原理及其快速计算的多分辨率方法,然后研究了小波变换极值与信号突变、噪声的相关性,在此基础上,详细阐述了应用小波变换进行暂态电能质量扰动检测与定位的原理过程,最后,运用Matlab软件进行了计算机仿真,给出了各种态电能质量扰动检测与定位检测与定位的仿真结果。理论分析和仿真结果显示应用小波变化对暂态电能质量扰动进行检测和定位,具有精确、实时、易实现等优点,是一种较理想的暂态电能质量扰动检测与定位方法。
本文深入探討瞭暫態電能質量擾動檢測與定位的小波變換方法。首先,分析瞭小波變換的基本原理及其快速計算的多分辨率方法,然後研究瞭小波變換極值與信號突變、譟聲的相關性,在此基礎上,詳細闡述瞭應用小波變換進行暫態電能質量擾動檢測與定位的原理過程,最後,運用Matlab軟件進行瞭計算機倣真,給齣瞭各種態電能質量擾動檢測與定位檢測與定位的倣真結果。理論分析和倣真結果顯示應用小波變化對暫態電能質量擾動進行檢測和定位,具有精確、實時、易實現等優點,是一種較理想的暫態電能質量擾動檢測與定位方法。
본문심입탐토료잠태전능질량우동검측여정위적소파변환방법。수선,분석료소파변환적기본원리급기쾌속계산적다분변솔방법,연후연구료소파변환겁치여신호돌변、조성적상관성,재차기출상,상세천술료응용소파변환진행잠태전능질량우동검측여정위적원리과정,최후,운용Matlab연건진행료계산궤방진,급출료각충태전능질량우동검측여정위검측여정위적방진결과。이론분석화방진결과현시응용소파변화대잠태전능질량우동진행검측화정위,구유정학、실시、역실현등우점,시일충교이상적잠태전능질량우동검측여정위방법。
The paper provides insight study of transient power quality disturbance detection and location of the wavelet transform. First, analyzed the basic principles of wavelet multi-resolution and fast calculation method, and then studied the wavelet transform and sudden-changed signals, noise correlation. On this basis, detailing the process of the application of wavelet transform for transient power quality disturbance detection and location of the principle. And finally, using Matlab software to simulate the process, it gave the simulation results of a variety of power quality disturbance detection and location of detection and location. Theoretical analysis and simulation results show that application of wavelet transform of transient power quality disturbance detection and location has accurate, real-time, easy to implement, etc., it is an ideal of transient power quality disturbance detection and localization.