Abstract
Traveling Waves Recorders (TWR) are used to accurately find the location of different faults in transmission networks. These recorders are installed at few substation buses where current traveling waves can be extracted. The recorded signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the traveling wave has been calculated considering Dijkstra algorithm to select the nearest TWR to the faulted line. The Wavelet Transform is used to find the highest spectral energy of the frequency band of the traveling wave signals. Thus, the Wavelet Transform enhances the traveling wave fault location. The current transformers (CT) are modeled and experimentally verified to represent the traveling wave interaction with the CT. The secondary wiring from the CT secondary winding to TWR has also some effect on the measured traveling wave signal which motivates practical issues associated with measuring the arrival times. Correction factors are derived to monitor high frequency current traveling wave signals. Validation of fault location is examined by ATP/EMTP simulations for typical 400 kV power system faults.
| Original language | English |
|---|---|
| Title of host publication | 2007 IEEE Lausanne POWERTECH, Proceedings |
| Pages | 1141-1146 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2007 |
| Event | 2007 IEEE Lausanne POWERTECH - Lausanne, Switzerland Duration: Jul 1 2007 → Jul 5 2007 |
Other
| Other | 2007 IEEE Lausanne POWERTECH |
|---|---|
| Country | Switzerland |
| City | Lausanne |
| Period | 7/1/07 → 7/5/07 |
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Keywords
- Fault location
- Modal analysis
- Multi end method
- Single phase to ground fault
- Traveling waves
- Wavelet transform
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
Cite this
Experimental investigations on multi-end fault location system based on current traveling waves. / Elhaffar, A.; Elkalashy, N. I.; Lehtonen, M.
2007 IEEE Lausanne POWERTECH, Proceedings. 2007. p. 1141-1146 4538476.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Experimental investigations on multi-end fault location system based on current traveling waves
AU - Elhaffar, A.
AU - Elkalashy, N. I.
AU - Lehtonen, M.
PY - 2007
Y1 - 2007
N2 - Traveling Waves Recorders (TWR) are used to accurately find the location of different faults in transmission networks. These recorders are installed at few substation buses where current traveling waves can be extracted. The recorded signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the traveling wave has been calculated considering Dijkstra algorithm to select the nearest TWR to the faulted line. The Wavelet Transform is used to find the highest spectral energy of the frequency band of the traveling wave signals. Thus, the Wavelet Transform enhances the traveling wave fault location. The current transformers (CT) are modeled and experimentally verified to represent the traveling wave interaction with the CT. The secondary wiring from the CT secondary winding to TWR has also some effect on the measured traveling wave signal which motivates practical issues associated with measuring the arrival times. Correction factors are derived to monitor high frequency current traveling wave signals. Validation of fault location is examined by ATP/EMTP simulations for typical 400 kV power system faults.
AB - Traveling Waves Recorders (TWR) are used to accurately find the location of different faults in transmission networks. These recorders are installed at few substation buses where current traveling waves can be extracted. The recorded signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the traveling wave has been calculated considering Dijkstra algorithm to select the nearest TWR to the faulted line. The Wavelet Transform is used to find the highest spectral energy of the frequency band of the traveling wave signals. Thus, the Wavelet Transform enhances the traveling wave fault location. The current transformers (CT) are modeled and experimentally verified to represent the traveling wave interaction with the CT. The secondary wiring from the CT secondary winding to TWR has also some effect on the measured traveling wave signal which motivates practical issues associated with measuring the arrival times. Correction factors are derived to monitor high frequency current traveling wave signals. Validation of fault location is examined by ATP/EMTP simulations for typical 400 kV power system faults.
KW - Fault location
KW - Modal analysis
KW - Multi end method
KW - Single phase to ground fault
KW - Traveling waves
KW - Wavelet transform
UR - http://www.scopus.com/inward/record.url?scp=50849141064&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=50849141064&partnerID=8YFLogxK
U2 - 10.1109/PCT.2007.4538476
DO - 10.1109/PCT.2007.4538476
M3 - Conference contribution
AN - SCOPUS:50849141064
SN - 9781424421909
SP - 1141
EP - 1146
BT - 2007 IEEE Lausanne POWERTECH, Proceedings
ER -