Analysis of Series Arc Detection Using ZCP and FFT; [ZCP FFT 와 를 이용한 직렬아크 검출 분석]

초록

Since the amplitude of line current generally decreases in case of a series arc occurrence in an AC line, it makes circuit breaker based on over current difficult to detect. In this paper, the AC series arc detection algorithm utilizing zero crossing period (ZCP) in time domain and fast fourier transform (FFT) in frequency domain was suggested and its effectiveness was analyzed by applying into various loads as stipulated in IEC 62606. The suggested series arc detection algorithm was designed based on the wider distribution of ZCP and the increased variation in the harmonic components with high frequency. Through its application into the measured line current obtained from series arc tests, the suggested detection algorithm was confirmed that the occurrence of series arc in loads with ZCP or with harmonic components in normal time could be distinguished and thus, the arc circuit breaker could be analyzed to detect within the regulated trip time. © 2025 Korean Institute of Electrical Engineers. All rights reserved.

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