摘要
通过搭建串联故障电弧实验平台,进行多种类型负载实验,对其正常工作和发生串联电弧故障时的电流信号进行分析,提出了一种基于分形盒维数的串联故障电弧诊断方法。进一步研究了不同信噪比下分形盒维数的计算误差,分析了分形盒维数的抗噪性能,同时计算了不同负载在正常工作和发生串联电弧故障下分形盒维数的参考区间。实验证明,基于分形盒维数的故障诊断方法能够准确辨别出负载的串联电弧故障,具有较好的通用性。
This paper sets up a series arc fault experiment platform to do various types of load experiments and to analyse their normal work and series of arc fault current signal,then puts forward a series arc fault diagnosis method based on the fractal box dimension. The calculation error of fractal box dimension under different SNR is further researched. This paper also analyzes the anti-noise performance of fractal box dimension,at the same time,the reference range of fractal box dimension is calculated under different load in the normal working and series arc fault occurring. The experimental results prove that the fault diagnosis method based on fractal box dimension can accurately identify the load series arc fault,which has good versatility.
出处
《微型机与应用》
2017年第7期74-77,87,共5页
Microcomputer & Its Applications
关键词
串联电弧故障
故障电弧电流
分形盒维数
抗噪性能
series arc fault
fault arc current
fractal box counting dimension
anti-noise performance
