Title :
High-phase order power transmission lines relaying approach based on the wavelet analysis of the fault generated traveling waves
Author :
Hajjar, Ammar A. ; Mansour, Mohamed M. ; Talaat, Hosam A.
Author_Institution :
Tishreen Univ., Syria
Abstract :
This paper introduces a high-speed relaying approach based on the wavelet analysis of the fault generated traveling waves dedicated for high-phase order power transmission lines. In this approach, a suitable wavelet is chosen and tuned at a suitable band of frequencies to capture the fault generated high frequency traveling waves superimposed on the power frequency waves in a modal domain. Then, the energies of the captured signals are used for making a trip decision. The introduced approach is tested and validated by a computer simulation using an ElectroMagnetic Transient Program (EMTDC). The results show that the approach has the ability for high-speed fault detection, classification and faulted phase(s) selection irrespective of the fault inception angle, fault resistance and line terminals.
Keywords :
EMTP; power system simulation; power transmission faults; power transmission lines; power transmission protection; relay protection; wavelet transforms; EMTDC; ElectroMagnetic Transient Program; computer simulation; fault classification; fault generated traveling waves; faulted phase selection; high frequency traveling waves; high-phase order; high-speed fault detection; modal domain; power frequency waves; power transmission line relaying; trip decision; wavelet analysis; Computer simulation; EMTP; Energy capture; Frequency; Power generation; Power transmission lines; Relays; Testing; Wavelet analysis; Wavelet domain;
Conference_Titel :
Universities Power Engineering Conference, 2004. UPEC 2004. 39th International
Conference_Location :
Bristol, UK
Print_ISBN :
1-86043-365-0