Novel traveling wave phase component-based fault location of transmission lines

• This paper presents a traveling wave phase component-based fault location method for the two-terminal line. Complex wavelet transform (CWT) is used for the extraction of the traveling wave from fault voltage and current signals at the relay end. The proposed technique uses the phase component of the traveling wave incident at the bus to calculate the fault distance. The method measured the phase component of the traveling wave, and then the phase component is formulated to calculate the fault distance. This is a novel approach to overcome the time synchronization issue. The proposed technique is evaluated for the protection of a two-terminal transmission line. Extensive simulation studies using PSCAD/EMTDC software imply that the proposed approach is reliable. The obtained results show that the calculated fault location is not affected by the fault type, fault resistance. 

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

Fault inception angle

Fault resistance

Fault type

Location of the fault

Reflection coefficient

Transmission lines

Traveling Waves

Computer software

Electric fault location

Electric lines

Location

Power electronics

Complex wavelet transforms

Current signal

Extensive simulations

Fault resistances

Location method

Phase component

Time synchronization

Two-terminal transmission line

Wavelet transforms

Publikations- och innehållstyp

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