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- W2365831053 abstract "An improved line fault-detection method is proposed in this paper by applying both the wavelet packets technology and the correlation analysis technology of digital signal processing.Firstly,each line's transient zero sequence current,which appears in the low current neutral grounding power system while a single-phase-to-earth fault occurring,is decomposed to obtain the suitable outputs of specific frequency bands.And the characteristic frequency band of each line,of which the transient capacitive current is most concentrated,is chosen adaptively according to the view of maximum energy.Secondly, the correlation analysis between each line's waveform of wavelet packets decomposition coefficient corresponding to its characteristic frequency band is carried out,so as to acquire the correlation matrix and then get each line's integrated correlation coefficient.Finally,the result of line fault-detection is obtained,which is arranged by the size of the probabilities of the grounding fault. The theoretical analysis and MATLAB simulations show that the proposed method can choose the faulty line exactly and reliably under all kinds of fault conditions.This method is suitable for both neutral insulated power networks and Peterson coil earthed power networks." @default.
- W2365831053 created "2016-06-24" @default.
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- W2365831053 date "2007-01-01" @default.
- W2365831053 modified "2023-09-23" @default.
- W2365831053 title "New Method for Line Fault-detection Under Single-phase-to-earth Fault of Low Current Neutral Grounding Power System" @default.
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