| Title |
A Numerical Algorithm for Fault Location Estimation Considering Long-Transmission Line |
| Authors |
김병만(Kim, Byeong-Man) ; 채명석(Chae, Myeong-Suk) ; 강용철(Kang, Yong-Cheol) |
| Keywords |
Fault location ; PMU ; Two-terminal ; Two-domain ; Shunt capacitance |
| Abstract |
This paper presents a numerical algorithm for fault location estimation which used to data from both end of the transmission line. The proposed algorithm is also based on the synchronized voltage and current phasor measured from the PMUs(Phasor Measurement Units) in the time-domain. This paper has separated from two part of with/without shunt capacitance(short/long distance). Most fault was arc one-ground fault which is 75% over [1]. so most study focused with it. In this paper, the numerical algorithm has calculated to distance for ground fault and line-line fault. In this paper, the algorithm is given with/without shunt capacitance using II parameter line model, simple impedance model and estimated using DFT(Discrete Fourier Transform) and the LES(Least Error Squares Method). To verify the validity of the proposed algorithm, the EMTP(Electro- Magnetic Transient Program) and MATLAB did used. |