电测与仪表2017，Vol.54Issue(20)：23-28,6.
基于多重分形降趋波动分析法的谐振接地系统故障选线新判据
A new criterion of fault line selection in resonant grounding system based on multifractal detrended flucuation analysis
张宇辉 1王劼妍 1武东斌 1吴家明2
作者信息
- 1. 东北电力大学 电气工程学院,吉林 吉林 132012
- 2. 南昌市供电公司, 南昌 330000
- 折叠
摘要
Abstract
The fast and accurate fault line selection of single phase to earth fault in distribution network system is of great significance to the safe operation of power network. To overcome the problem of inaccurate result of traditional fault line selection method which is caused by poor ability to resist noise and influence of the compensation degree of arc suppression coil, a new criterion of fault line selection in resonant grounding system based on multifractal detrend-ed flucuation analysis (MFDFA) is presented in this paper. Using the boundary value ratio ζ to describe distribution features of the zero sequence current fractal parameters feeder curve H(q), the fault line selection based on the nu-merical difference. Simulation results show that the proposed criterion has the advantages of no filtering, strong anti-noise ability, computing speed and overcome the arc suppression coil on the influence of fault line selection and fault conditions.关键词
故障选线/MFDFA/界值比/谐振接地系统Key words
fault line selection/MFDFA/boundary value ratio/resonant grounding system分类
信息技术与安全科学引用本文复制引用
张宇辉,王劼妍,武东斌,吴家明..基于多重分形降趋波动分析法的谐振接地系统故障选线新判据[J].电测与仪表,2017,54(20):23-28,6.
