一种基于Daubechies小波的航空电弧故障检测方法研究

摘要

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.