Recognition of Traveling Surges in HVDC with Wavelet Entropy
Recognition of Traveling Surges in HVDC with Wavelet Entropy
复制标题
用小波熵识别高压直流输电中的行波浪涌
作者:
罗国敏;林琦智;周琳;和敬涵
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.
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DOI:
10.1109/pesgm.2018.8586307
发表时间:
2018-08
期刊:
2018 IEEE Power & Energy Society General Meeting (PESGM)
影响因子:
--
作者:
G. Song;X. Chu;Shuping Gao;X. Kang;Z. Jiao
通讯作者:
G. Song;X. Chu;Shuping Gao;X. Kang;Z. Jiao
影响因子:
2.7
作者:
Lin Sheng;Gao Shan;He Zhengyou;Deng Yujia
通讯作者:
Deng Yujia
DOI:
10.5130/pc.v1i1.976
发表时间:
2009-01
期刊:
Provincial China
影响因子:
--
作者:
吕一旭 Yixu Lu
通讯作者:
吕一旭 Yixu Lu
影响因子:
4.4
作者:
Xiaolei Liu;A. Osman;O. Malik
通讯作者:
Xiaolei Liu;A. Osman;O. Malik
DOI:
10.1016/b978-0-12-466606-1.x5000-4
发表时间:
1998
期刊:
--
影响因子:
--
作者:
S. Mallat
通讯作者:
S. Mallat