A Novel Energy Ratio Direction Relay based on Equivalent Traveling wave Process

2014 ◽  
Author(s):  
Li Ren ◽  
Shenxing Shi ◽  
Bin Wang ◽  
Xinzhou Dong
Keyword(s):  
Traveling Wave ◽  
Wave Process ◽  
Energy Ratio

scholarly journals Fault identification of double-circuit transmission lines on the same pole based on EEMD energy ratio

2022 ◽  
Vol 355 ◽  
pp. 03035
Author(s):  
Yicen Liu ◽  
Ying Chen ◽  
Songhai Fan ◽  
Yiyu Gong ◽  
Xi Zou
Keyword(s):  
Transmission Lines ◽  
Traveling Wave ◽  
Feature Vector ◽  
Time Window ◽  
Energy Ratio ◽  
Fault Identification ◽  
Support Vector ◽  
Relationship Of ◽  
Double Circuit Line ◽  
The Relationship

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.

Temporal Forcing of Traveling Wave Patterns

1996 ◽  
Vol 6 (11) ◽  
pp. 1417-1434 ◽  
Author(s):  
Joceline Lega ◽  
Jean-Marc Vince
Keyword(s):  
Traveling Wave ◽  
Wave Patterns

Generalized Linford formula and its application to Traveling Wave Excitation

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-285-Pr2-288
Author(s):  
R. Tommasini ◽  
E. E. Fill
Keyword(s):  
Traveling Wave ◽  
Wave Excitation

Traveling wave tubes: a history of people and fates

2019 ◽  
Vol 190 (05) ◽  
pp. 543-556
Author(s):  
Dmitrii I. Trubetskov ◽  
Galina M. Vdovina
Keyword(s):  
Traveling Wave ◽  
History Of ◽  
Traveling Wave Tubes
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