Abstract
This paper presents an improved method for estimating the fault location in electric power systems based on transient signals obtained from traveling wave recorders (TWS). These recorders are installed at few substations where traveling waves are utilized to locate faults in the transmission system using current signals only. The recorded signals are compared to a reference signal and the time delay of the first wave fronts is receded at each TWS. The minimum path for the traveling wave has been calculated using Dijkstra Algorithm to select the closest TWS recorder. The fault location is determined by accurately time-tagging the arrival of the traveling wave at monitored ends of the transmission lines and comparing the time difference to the total propagation time of the lines. The time signal is obtained via satellite from the Global Positioning System (GPS). Fault distance calculation is done using double end method and the appropriate two current traveling wave signals. Validation of fault location is carried out by the Alternative Transient Program (ATP/EMTP) simulations for a typical 400 kV power system.
| Original language | English |
|---|---|
| Title of host publication | 2005 International Conference on Future Power Systems |
| Volume | 2005 |
| Publication status | Published - 2005 |
| Event | 2005 International Conference on Future Power Systems - Amsterdam, Netherlands Duration: Nov 16 2005 → Nov 18 2005 |
Other
| Other | 2005 International Conference on Future Power Systems |
|---|---|
| Country | Netherlands |
| City | Amsterdam |
| Period | 11/16/05 → 11/18/05 |
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Keywords
- Fault location
- Maximum likelihood estimation
- Modal analysis
- Multi-ended method
- Single phase to ground fault
- Transmission lines
- Travelling waves
- Wavelet transform
ASJC Scopus subject areas
- Engineering(all)
Cite this
An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings. / Elhaffar, A.; Lehtonen, M.
2005 International Conference on Future Power Systems. Vol. 2005 2005. 1600598.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - An improved GPS current traveling-wave fault locator in EHV transmission networks using few recordings
AU - Elhaffar, A.
AU - Lehtonen, M.
PY - 2005
Y1 - 2005
N2 - This paper presents an improved method for estimating the fault location in electric power systems based on transient signals obtained from traveling wave recorders (TWS). These recorders are installed at few substations where traveling waves are utilized to locate faults in the transmission system using current signals only. The recorded signals are compared to a reference signal and the time delay of the first wave fronts is receded at each TWS. The minimum path for the traveling wave has been calculated using Dijkstra Algorithm to select the closest TWS recorder. The fault location is determined by accurately time-tagging the arrival of the traveling wave at monitored ends of the transmission lines and comparing the time difference to the total propagation time of the lines. The time signal is obtained via satellite from the Global Positioning System (GPS). Fault distance calculation is done using double end method and the appropriate two current traveling wave signals. Validation of fault location is carried out by the Alternative Transient Program (ATP/EMTP) simulations for a typical 400 kV power system.
AB - This paper presents an improved method for estimating the fault location in electric power systems based on transient signals obtained from traveling wave recorders (TWS). These recorders are installed at few substations where traveling waves are utilized to locate faults in the transmission system using current signals only. The recorded signals are compared to a reference signal and the time delay of the first wave fronts is receded at each TWS. The minimum path for the traveling wave has been calculated using Dijkstra Algorithm to select the closest TWS recorder. The fault location is determined by accurately time-tagging the arrival of the traveling wave at monitored ends of the transmission lines and comparing the time difference to the total propagation time of the lines. The time signal is obtained via satellite from the Global Positioning System (GPS). Fault distance calculation is done using double end method and the appropriate two current traveling wave signals. Validation of fault location is carried out by the Alternative Transient Program (ATP/EMTP) simulations for a typical 400 kV power system.
KW - Fault location
KW - Maximum likelihood estimation
KW - Modal analysis
KW - Multi-ended method
KW - Single phase to ground fault
KW - Transmission lines
KW - Travelling waves
KW - Wavelet transform
UR - http://www.scopus.com/inward/record.url?scp=33847189205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33847189205&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33847189205
SN - 9078205024
SN - 9789078205029
VL - 2005
BT - 2005 International Conference on Future Power Systems
ER -