| Issue |
MATEC Web Conf.
Volume 355, 2022
2021 International Conference on Physics, Computing and Mathematical (ICPCM2021)
|
|
|---|---|---|
| Article Number | 03035 | |
| Number of page(s) | 9 | |
| Section | Computing Methods and Computer Application | |
| DOI | https://doi.org/10.1051/matecconf/202235503035 | |
| Published online | 12 January 2022 | |
Fault identification of double-circuit transmission lines on the same pole based on EEMD energy ratio
1 State Grid Sichuan Electric Power Research Institute, Chengdu, Sichuan, 610041, China
2 State Grid Sichuan Integrated Energy Service Co., Ltd., Chengdu, Sichuan, 610072, China
3 Automation and Information Engineering, Sichuan University of Science & Engineering, zigong, Sichuan, 643000, China
* Corresponding author: zouxi647636@163.com
In order to improve the sensitivity and reliability of traveling wave protection, on the basis of analyzing the relationship of the anti-traveling wave current amplitude in the window after the internal/external failure of the double circuit line on the same tower, a fault identification method based on EEMD energy ratio is proposed. Use EEMD decomposition to decompose the anti-traveling wave current in a time window after the fault into 7 scales, and extracts the EEMD energy ratio at each scale at both ends to form a feature vector. Then it is sent to the particle swarm optimization support vector machine (PSO-SVM) for training and testing, and the internal and external faults are identified. Experiments show that the algorithm has good fault identification ability, the fault accuracy is 95% and the method sensitivity is high.
Key words: Double-circuit lines on the same tower / Reverse traveling wave current / EEMD energy ratio / PSO-SVM / Fault identification
© The Authors, published by EDP Sciences, 2022
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