公开(公告)号：US20200076364A1

公开(公告)日：2020-03-05

申请号：US16114571

申请日：2018-08-28

Applicant: Analog Devices Global Unlimited Company

Inventor： Bijesh POYIL ,  Hans BRUEGGEMANN ,  Daniel Brian O'MALLEY

IPC: H02S50/10 ,  G01R31/12

Abstract: An arc detection method includes classifying whether an arc fault is present in the power system by, for each of a plurality of bins of a current frame of a signal, marking the bin as a candidate bin if a magnitude spectrum of the bin meets first criteria; determining a number of candidate bins in the current frame; marking the number of candidate bins as candidate cluster bins if the number of candidate bins exceeds a minimum cluster size; for each of the candidate cluster bins, determining whether the candidate cluster bin is also a candidate cluster bin of a previous frame of the first signal and if so, identifying the current frame as a candidate frame and incrementing a candidate frame count; and if the candidate frame count exceeds a candidate frame count threshold, determining that an arc fault is present in the power system.