Fault location in transmission lines by Wavelet analysis
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Transmission line protective relaying is an important aspect of reliable power system operation. Transmission line relaying has evolved into a multifunctional scheme comprising of tasks like detection, classification and location of faults occurring on transmission lines. This work presents a wavelet analysis based approach for estimation of fault location in transmission lines. The proposed approach requires the consideration of wavelet multi-resolution analysis (MRA) level-1 details of current samples at one end of transmission line for the estimation of fault location. Simulation results ba...
Transmission line protective relaying is an important aspect of reliable power system operation. Transmission line relaying has evolved into a multifunctional scheme comprising of tasks like detection, classification and location of faults occurring on transmission lines. This work presents a wavelet analysis based approach for estimation of fault location in transmission lines. The proposed approach requires the consideration of wavelet multi-resolution analysis (MRA) level-1 details of current samples at one end of transmission line for the estimation of fault location. Simulation results based on EMTP and MATLAB have been presented to illustrate the effectiveness of the proposed approach. To validate the proposed fault location approach, studies have been carried out on simulated power system model in which the transmission line is fed from both ends. The model is subjected to different types of faults while operating at different operating conditions and performances of the proposed algorithms are evaluated. The results of the simulation studies, which are presented in this book, confirm the feasibility of the proposed algorithms.
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