电力系统中短路故障定位与诊断技术研究
摘 要
本文主要研究了电力系统中短路故障定位与诊断技术问题，提出了基于多源信息融合的短路故障定位及诊断优化方案。首先介绍了电力系统的结构与组成、短路故障的分类与原理，以及短路故障的特征分析方法，为后续工作的展开提供了依据。其次，分析了现有短路故障定位方法的缺陷、现有短路故障诊断方法的不足以及短路故障定位及诊断方法需解决的问题。基于上述分析，提出了基于多源信息融合的短路故障定位及诊断优化方案，并进行了详细的介绍。该方案包括基于电流电压信息的短路故障定位算法、基于多源信息融合的短路故障定位方法和基于有限元的短路故障诊断算法，具有较高的可靠性和实用性。最后，总结了研究成果，提出了存在的不足与展望，并进一步规划了后续工作的计划。
关键词：电力系统、短路故障、定位
Abstract
This paper mainly studies the problem of short-circuit fault location and diagnosis technology in power system and proposes an optimization scheme of short-circuit fault location and diagnosis based on multi-source information fusion. Firstly, the structure and composition of power system, the classification and principle of short-circuit fault, as well as the characteristic analysis method of short-circuit fault are introduced, which provides the basis for the follow-up work. Secondly, the defects of the existing short-circuit fault location methods, the shortcomings of the existing short-circuit fault diagnosis methods and the problems to be solved by the short-circuit fault location and diagnosis methods are analyzed. Based on the above analysis, a short-circuit fault location and diagnosis optimization scheme based on multi-source information fusion is proposed and introduced in detail. This scheme includes short-circuit fault location algorithm based on current and voltage information, short-circuit fault location method based on multi-source information fusion and short-circuit fault diagnosis algorithm based on finite element, which has high reliability and practicality. Finally, the paper summarizes the research results, puts forward the existing deficiencies and prospects, and further plans the follow-up work.
Keyword:Power system, short circuit fault, positioning
目 录
1. 绪论 1
1.1 研究背景与意义 1
1.2 国内外现状与发展 1
1.3 研究内容与目标 2
2. 相关概念及理论基础 3
2.1 电力系统的结构与组成 3
2.2 短路故障的分类与原理 3
2.3 短路故障的特征分析方法 3
3. 短路故障定位及诊断方法的问题 5
3.1 现有短路故障定位方法的缺陷 5
3.2 现有短路故障诊断方法的不足 5
3.3 短路故障定位及诊断方法需解决的问题 5
4. 短路故障定位及诊断优化方案 7
4.1 短路故障定位算法设计 7
4.2 短路故障定位方法 7
4.3 基于有限元的短路故障诊断算法 7
5. 结论 9
参考文献 10
致 谢 11
摘 要
本文主要研究了电力系统中短路故障定位与诊断技术问题，提出了基于多源信息融合的短路故障定位及诊断优化方案。首先介绍了电力系统的结构与组成、短路故障的分类与原理，以及短路故障的特征分析方法，为后续工作的展开提供了依据。其次，分析了现有短路故障定位方法的缺陷、现有短路故障诊断方法的不足以及短路故障定位及诊断方法需解决的问题。基于上述分析，提出了基于多源信息融合的短路故障定位及诊断优化方案，并进行了详细的介绍。该方案包括基于电流电压信息的短路故障定位算法、基于多源信息融合的短路故障定位方法和基于有限元的短路故障诊断算法，具有较高的可靠性和实用性。最后，总结了研究成果，提出了存在的不足与展望，并进一步规划了后续工作的计划。
关键词：电力系统、短路故障、定位
Abstract
This paper mainly studies the problem of short-circuit fault location and diagnosis technology in power system and proposes an optimization scheme of short-circuit fault location and diagnosis based on multi-source information fusion. Firstly, the structure and composition of power system, the classification and principle of short-circuit fault, as well as the characteristic analysis method of short-circuit fault are introduced, which provides the basis for the follow-up work. Secondly, the defects of the existing short-circuit fault location methods, the shortcomings of the existing short-circuit fault diagnosis methods and the problems to be solved by the short-circuit fault location and diagnosis methods are analyzed. Based on the above analysis, a short-circuit fault location and diagnosis optimization scheme based on multi-source information fusion is proposed and introduced in detail. This scheme includes short-circuit fault location algorithm based on current and voltage information, short-circuit fault location method based on multi-source information fusion and short-circuit fault diagnosis algorithm based on finite element, which has high reliability and practicality. Finally, the paper summarizes the research results, puts forward the existing deficiencies and prospects, and further plans the follow-up work.
Keyword:Power system, short circuit fault, positioning
目 录
1. 绪论 1
1.1 研究背景与意义 1
1.2 国内外现状与发展 1
1.3 研究内容与目标 2
2. 相关概念及理论基础 3
2.1 电力系统的结构与组成 3
2.2 短路故障的分类与原理 3
2.3 短路故障的特征分析方法 3
3. 短路故障定位及诊断方法的问题 5
3.1 现有短路故障定位方法的缺陷 5
3.2 现有短路故障诊断方法的不足 5
3.3 短路故障定位及诊断方法需解决的问题 5
4. 短路故障定位及诊断优化方案 7
4.1 短路故障定位算法设计 7
4.2 短路故障定位方法 7
4.3 基于有限元的短路故障诊断算法 7
5. 结论 9
参考文献 10
致 谢 11
