Identification of Lightning Strikes on Transmission Lines Based on Time-frequency Joint Analysis

DOI

10.2991/isrme-15.2015.168How to use a DOI?

Keywords

lightning, transmission line, wavelet packet transform, the coefficient of variation.

Abstract

Identifying the lightning and short-circuit fault of transmission lines correctly is important for the transient protection. To address the problem, this paper adopts a multi-resolution analysis of wavelet packet and finds that energy distribution of additional components of the transient currents differs a lot when the data windows moves, if define K value as the principal component proportion, according to the differences among the K values of the different transient signals, the lightning and short-circuit fault can be identified by using the coefficient of variation. The theory of the proposed method is intuitive, simple and EMTP simulations are provided to verify its correctness.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xu Chen
AU  - Yongli Zhu
AU  - Xuesong Zhao
AU  - Lei Zhao
AU  - Xiaohong Guo
AU  - Yanfeng Gao
PY  - 2015/04
DA  - 2015/04
TI  - Identification of Lightning Strikes on Transmission Lines Based on Time-frequency Joint Analysis
BT  - Proceedings of the 2015 International Conference on Intelligent Systems Research and Mechatronics Engineering
PB  - Atlantis Press
SP  - 823
EP  - 826
SN  - 1951-6851
UR  - https://doi.org/10.2991/isrme-15.2015.168
DO  - 10.2991/isrme-15.2015.168
ID  - Chen2015/04
ER  -