NDLI: A new approach to identify inrush current based on generalized S-transform

Content Provider	IEEE Xplore Digital Library
Author	Shangbin Jiao Sha Wang Gang Zheng
Copyright Year	2008
Description	Author affiliation: Xi'an Univ. of Technol., Xi'an (Shangbin Jiao; Sha Wang; Gang Zheng)
Abstract	A novel approach to identify inrush current and internal fault current for power transformer protection based on generalized S-transform is presented. Generalized S-transform is a very powerful tool for non-stationary signal analysis giving the information of transient currents both in time and in frequency domains. It is used to extract patterns from inrush current and internal faults. The time-frequency contours are obtained after generalized S-transform, it is found that the time-frequency contours in case of inrush current are different from that in case of internal faults. The spectral energy and standard deviation from the generalized S-transform of signal are computed, classification of inrush current and internal faults is done by BP neural networks. Simulation results and dynamic test results indicate that this technique is effective under different fault conditions.
Starting Page	4317
Ending Page	4322
File Size	1203271
Page Count	6
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	Surge protection Time frequency analysis Fault diagnosis Fault currents Power transformers Signal analysis Transient analysis Frequency domain analysis Data mining Computer networks
Content Type	Text
Resource Type	Article

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