基于离散小波变换的电力系统暂态信号处理
摘 要
随着电力系统的不断发展，暂态信号处理技术已经成为电力系统分析和诊断的重要研究领域。本论文主要研究了电力系统瞬态信号的特征与重要意义，并对基于离散小波理论的电力系统瞬态信号分析方法进行了深入研究，并对小波理论的优点与应用进行了初步探讨。文章首先介绍了离散小波变换的基础理论，包括定义和基本性质、小波基函数及其选择方法、以及实现和算法。进而，本文详细讨论了基于离散小波变换的电力系统暂态信号处理方法，其中包括暂态信号的特点和预处理方法、基于离散小波变换的暂态信号特征提取方法，以及基于离散小波变换的暂态信号分类和识别方法。通过分析和论述，本文为电力系统暂态信号处理技术的研究和实践提供了一定的参考。
关键词：离散 、小波变换 、电力系统、暂态信号
Abstract
With the continuous development of the power system, transient signal processing technology has become an important research field for power system analysis and diagnosis. This article will explore the characteristics and importance of transient signals in power systems, the application of discrete wavelet transform in signal processing, and the advantages and applications of discrete wavelet transform in transient signal processing in power systems. The article first introduces the basic theory of discrete wavelet transform, including its definition and basic properties, wavelet basis functions and their selection methods, as well as implementation and algorithms. Furthermore, this article discusses in detail the transient signal processing methods of power systems based on discrete wavelet transform, including the characteristics and preprocessing methods of transient signals, the feature extraction method of transient signals based on discrete wavelet transform, and the classification and recognition method of transient signals based on discrete wavelet transform. Through analysis and discussion, this article provides a certain reference for the research and practice of transient signal processing technology in power systems.
Keyword:Discrete、wavelet transform、power system、transient signal
目 录
引言 1
1电力系统暂态信号概述 1
1.1电力系统暂态信号的特点及其重要性 1
1.2离散小波变换在信号处理中的应用 1
1.3离散小波变换在电力系统暂态信号处理中的优势和应用 2
2离散小波变换的基础理论 2
2.1离散小波变换的定义和基本性质 2
2.2离散小波变换的小波基函数及其选择方法 2
2.3离散小波变换的实现和算法 3
3基于离散小波变换的电力系统暂态信号处理方法 3
3.1暂态信号的特点和预处理方法 3
3.2基于离散小波变换的暂态信号特征提取方法 3
3.3基于离散小波变换的暂态信号分类和识别方法 4
结论 4
参考文献 6
致谢 7
摘 要
随着电力系统的不断发展，暂态信号处理技术已经成为电力系统分析和诊断的重要研究领域。本论文主要研究了电力系统瞬态信号的特征与重要意义，并对基于离散小波理论的电力系统瞬态信号分析方法进行了深入研究，并对小波理论的优点与应用进行了初步探讨。文章首先介绍了离散小波变换的基础理论，包括定义和基本性质、小波基函数及其选择方法、以及实现和算法。进而，本文详细讨论了基于离散小波变换的电力系统暂态信号处理方法，其中包括暂态信号的特点和预处理方法、基于离散小波变换的暂态信号特征提取方法，以及基于离散小波变换的暂态信号分类和识别方法。通过分析和论述，本文为电力系统暂态信号处理技术的研究和实践提供了一定的参考。
关键词：离散 、小波变换 、电力系统、暂态信号
Abstract
With the continuous development of the power system, transient signal processing technology has become an important research field for power system analysis and diagnosis. This article will explore the characteristics and importance of transient signals in power systems, the application of discrete wavelet transform in signal processing, and the advantages and applications of discrete wavelet transform in transient signal processing in power systems. The article first introduces the basic theory of discrete wavelet transform, including its definition and basic properties, wavelet basis functions and their selection methods, as well as implementation and algorithms. Furthermore, this article discusses in detail the transient signal processing methods of power systems based on discrete wavelet transform, including the characteristics and preprocessing methods of transient signals, the feature extraction method of transient signals based on discrete wavelet transform, and the classification and recognition method of transient signals based on discrete wavelet transform. Through analysis and discussion, this article provides a certain reference for the research and practice of transient signal processing technology in power systems.
Keyword:Discrete、wavelet transform、power system、transient signal
目 录
引言 1
1电力系统暂态信号概述 1
1.1电力系统暂态信号的特点及其重要性 1
1.2离散小波变换在信号处理中的应用 1
1.3离散小波变换在电力系统暂态信号处理中的优势和应用 2
2离散小波变换的基础理论 2
2.1离散小波变换的定义和基本性质 2
2.2离散小波变换的小波基函数及其选择方法 2
2.3离散小波变换的实现和算法 3
3基于离散小波变换的电力系统暂态信号处理方法 3
3.1暂态信号的特点和预处理方法 3
3.2基于离散小波变换的暂态信号特征提取方法 3
3.3基于离散小波变换的暂态信号分类和识别方法 4
结论 4
参考文献 6
致谢 7
