High-Voltage Transmission Line Simulation Model Using Simulink

By employing MATLAB/Simulink's high-voltage transmission line simulation model, detailed simulation data can be obtained through comprehensive electromagnetic transient analysis. This data serves as input for implementing the double-ended impedance method algorithm, which calculates fault location by processing voltage and current measurements from both transmission line ends using phasor estimation techniques. The fault location programming typically involves discrete Fourier transform (DFT) implementation for phasor extraction and impedance calculation routines. Simulation results confirm the method's accuracy and reliability, with error margins typically within 1% of transmission line length. Through systematic simulation analysis, engineers can gain deeper insights into high-voltage transmission line characteristics, including wave propagation effects and fault transient behavior, while providing practical guidance and optimization recommendations for real-world power system applications.