Multiple Harmonic Source Location Using the Least Median of Squares Method with the Presence of Outliers in High Voltage Electric Power Systems

2019 ◽  
Vol 47 (14-15) ◽  
pp. 1375-1386
Author(s):  
Luis Alberto Hernández Armenta ◽  
David Romero Romero
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
High Voltage ◽  
Electric Power Systems ◽  
Source Location ◽  
Least Median Of Squares ◽  
Harmonic Source

A Fault Phase Selection Method Based on Arc Voltages for High-Voltage Line Protections in Electric Power Systems

2013 ◽  
Vol 676 ◽  
pp. 218-221
Author(s):  
Xiao Hui Zeng ◽  
Yong Hui Chen ◽  
Gong Quan Tan
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
High Voltage ◽  
Single Phase ◽  
Electric Power Systems ◽  
Selection Method ◽  
Phase Selection ◽  
Arc Voltage ◽  
Sequence Components ◽  
Simulation Results

A fault phase selection method is proposed based on arc voltage after analysis of inadequate of fault phase selector existed in the paper. A precise fault phase selection can be achieved by using arc voltages in conjunction with phase current differences and sequence components of currents. The method proposed can solve false tripping problems in transmission line protections when single phase to ground faults occur with great reliabilities. Simulation results show that the method can identify faulted phase or phases correctly and effectively.

Open Overhead Transmission Lines

2015 ◽  
Vol 792 ◽  
pp. 293-299 ◽  
Author(s):  
Evgeny Shishkov ◽  
Valery Goldstein ◽  
Ivan Krivihin
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
High Voltage ◽  
Transmission Lines ◽  
Electric Power Systems ◽  
Long Distance ◽  
Overhead Lines ◽  
Significant Power ◽  
Overhead Transmission Lines ◽  
First Case

Ultra High-Voltage Overhead Lines (UHV OHL) currently are successfully applied for solving two problems. The first case is powerful interconnection of two or more electric power systems. The second one is transition of significant power flows from generation areas to consuming areas – densely populated urban agglomerations and industrial centers. Longitudinal compensation installations are integral part of long-distance UHV OHL. The possibility of designing self-compensated OHL is considered in the paper.

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