一种基于Daubechies小波的航空电弧故障检测方法研究

Study of Arc Fault Detection Method Based on Daubechies Wavelet in Aviation Power System

针对航空交流故障电弧的类型,进行点接触和铡刀两组模拟试验,得到了故障电弧电流数据。采用小波变换对数据进行分析并提取特征参量,提出一种基于Daubechies小波的航空电弧故障检测方法。试验证明,所提方法是一种可靠的电弧故障检测方法,可为航空电弧故障断路器的深入研究和设计提供参考。

Based on the type of AC arc fault in aircraft,two groups of simulated experiments,point-contact test and guillotine test,were conducted,achieving the arc fault current data. By using wavelet transform,this paper analyzed the data and extracts the characteristic parameters,and then proposed a Daubechies wavelet-based method of arc fault detection in aviation. The experiments prove that this is a reliable arc fault detection method,which provides a reference for the further research and design of the arc fault circuit interrupter for AC power system in aviation.