TY - GEN
T1 - Signal processing applications to current traveling wave fault locators for EHV transmission networks
AU - Elhaffar, A.
AU - Lehtonen, M.
PY - 2007
Y1 - 2007
N2 - Traveling Waves Recorders (TWRs) are used to accurately find the location of different faults in power transmission networks. These recorders are installed at few high voltage buses where current traveling waves (CTWs) can be extracted. The CTW signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the CTW has been calculated considering Dijkstra algorithm to select the nearest TWRs to the fault point. Wavelet Transform is used to find the highest energy of the details frequency band of the CTW signals. Optimum details level is extracted based on its energy content. The mean delay is calculated from the first packet of details' power profile for each TWR to be used in a double-end fault location algorithm. Time delay at the maximum power delay profile shows good results compared to the mean time delay.
AB - Traveling Waves Recorders (TWRs) are used to accurately find the location of different faults in power transmission networks. These recorders are installed at few high voltage buses where current traveling waves (CTWs) can be extracted. The CTW signals' time delay of the initial wave is recoded at each TWR. In this paper, the minimum travel time of the CTW has been calculated considering Dijkstra algorithm to select the nearest TWRs to the fault point. Wavelet Transform is used to find the highest energy of the details frequency band of the CTW signals. Optimum details level is extracted based on its energy content. The mean delay is calculated from the first packet of details' power profile for each TWR to be used in a double-end fault location algorithm. Time delay at the maximum power delay profile shows good results compared to the mean time delay.
KW - Fault location
KW - Transient analysis
KW - Traveling wave devices
KW - wavelet transform
UR - http://www.scopus.com/inward/record.url?scp=60349123833&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=60349123833&partnerID=8YFLogxK
U2 - 10.1109/ICSPC.2007.4728394
DO - 10.1109/ICSPC.2007.4728394
M3 - Conference contribution
AN - SCOPUS:60349123833
SN - 9781424412365
T3 - ICSPC 2007 Proceedings - 2007 IEEE International Conference on Signal Processing and Communications
SP - 616
EP - 619
BT - ICSPC 2007 Proceedings - 2007 IEEE International Conference on Signal Processing and Communications
T2 - 2007 IEEE International Conference on Signal Processing and Communications, ICSPC 2007
Y2 - 14 November 2007 through 27 November 2007
ER -