NDLI: Study on non-unit transient protection principle for EHV transmission lines based on wavelet singular entropy

Content Provider	IEEE Xplore Digital Library
Author	Liu Qing Wang Zengzing
Copyright Year	2009
Description	Author affiliation: Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, Heibei Province, China (Liu Qing; Wang Zengzing)
Abstract	A new scheme of non-unit transient protection based on the concept of wavelet entropy is suggested. Combined with the technique of wavelet transform, energy entropy and singular value decomposition, using the difference of complexity degree of electric power system fault transient high frequency signal, the characteristic of wavelet singular entropy with internal and external fault is analyzed and the startup and trip criterion of non-unit transient protection based on wavelet singular entropy is constructed. The PSCAD/EMTDC simulation results show that this scheme is insensitive to fault type, fault location, fault resistance and fault inception angle. The protection algorithm is simple. Favorable adaptability and sensitivity can be realized.
Starting Page	1
Ending Page	6
File Size	770493
Page Count	6
File Format	PDF
ISBN	9781424442416
ISSN	19449925
DOI	10.1109/PES.2009.5275613
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-26
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system transients Transmission lines Entropy Power system protection Wavelet analysis Transient analysis Power transmission lines Wavelet transforms Singular value decomposition Frequency protection criterion EHV transmission line non-unit transient protection wavelet singular entropy
Content Type	Text
Resource Type	Article

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