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Analysis of Transient Signatures of Arc Faults in Power Distribution Systems via Time-Frequency Analysis

机译:时频分析法分析配电系统电弧故障的暂态特征

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This paper draws on an innovative, signal processing-based method that jointly analyzes the time and frequency domains and uses that information to characterize and distinguish the deadly arc faults from the normal operational faults. This paper introduces a variety of new power quality assessment tools developed with the purpose of both detecting an arc fault faster than has yet been done and distinguishing the arc fault from other normal load operations via time-localized spectral characterization. Based on the time and frequency localization of the arc faults, the time varying impedances of the arc fault are modeled in terms of harmonic sources. The accomplishment of these objectives would lead to new, advanced smart arc fault circuit breakers and the modeling & simulation of arc fault phenomena.
机译:本文采用了一种基于信号处理的创新方法,该方法可以共同分析时域和频域,并使用该信息来表征和区分致命电弧故障和正常运行故障。本文介绍了各种新的电能质量评估工具,其目的是既可以比现有方法更快地检测电弧故障,还可以通过时域频谱表征将电弧故障与其他正常负载操作区分开。基于电弧故障的时间和频率定位,根据谐波源对电弧故障的时变阻抗进行建模。这些目标的实现将导致新的,先进的智能电弧故障断路器以及电弧故障现象的建模和仿真。

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