Title
Recognition of Traveling Surges in HVDC with Wavelet Entropy.
Abstract
Traveling surges are commonly adopted in protection devices of high-voltage direct current (HVDC) transmission systems. Lightning strikes also can produce large-amplitude traveling surges which lead to the malfunction of relays. To ensure the reliable operation of protection devices, recognition of traveling surges must be considered. Wavelet entropy, which can reveal time-frequency distribution features, is a potential tool for traveling surge recognition. In this paper, the effectiveness of wavelet entropy in characterizing traveling surges is demonstrated by comparing its representations of different kinds of surges and discussing its stability with the effects of propagation distance and fault resistance. A wavelet entropy-based recognition method is proposed and tested by simulated traveling surges. The results show wavelet entropy can discriminate fault traveling surges with a good recognition rate.
Year
DOI
Venue
2017
10.3390/e19050184
ENTROPY
Keywords
Field
DocType
wavelet entropy,traveling surges,HVDC,fault recognition
Lightning strike,Mathematical optimization,Control theory,Fault resistance,Transmission system,Artificial intelligence,Surge,Fault recognition,Wavelet entropy,Mathematics
Journal
Volume
Issue
ISSN
19
5
1099-4300
Citations 
PageRank 
References 
1
0.37
6
Authors
4
Name
Order
Citations
PageRank
Guomin Luo112.06
Qizhi Lin210.37
lin zhou346.49
Jinghan He4147.47