Traveling Wave Method Fault Location of Offshore Wind Power Submarine Cables Based on SIMULINK Simulation

With the rapid development of offshore wind power industry, a large number of submarine cables are used in offshore wind farms, undertaking the task of transmitting information and electricity.Failure of submarine cables will have a significant impact on the normal operation of offshore wind farms which would be seriously affected.Therefore, research on fault location for submarine cables is of great importance for stable operation of offshore wind fields.Based on SIMULINK simulation platform, behavior of submarine cable circuits under different fault types was simulated, and fault points at specific locations for simulation were set.During simulation process, traveling wave method was used to extract transient traveling wave signals after the fault to obtain forward and reverse traveling waves.Two algorithms, single-end traveling wave location and double-end traveling wave location, were used to determine the fault point location based on the time difference of traveling wave arrival.Results showed that both single-end and double-end traveling wave methods could effectively locate the fault point, with double-end traveling wave method demonstrating higher location accuracy, especially when the fault point was far from the measuring end.