Abstract
In order to study the influence of different fault conditions on the initial traveling wave amplitude, initial traveling wave arrival time and duration of fault line transient voltage, a fault electromagnetic transient analysis method based on MATLAB/Simulink modeling is proposed. This method uses MATLAB software to build a 10kV railway automatic blocking and continuous power transmission lines system simulation model with a total length of 60km. The system model includes three parts: power system module, transmission line module, data acquisition and processing module. Taking the single-phase ground fault as an example, the sampling frequency is set to 2MHz, and the simulation analysis of different initial phase angles, different transition resistances, different fault distances and different branches before fault points are performed. The single phase voltage traveling wave diagrams in different fault conditions are analyzed, which shows that the analysis method has certain feasibility.
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