Traveling Wave Method Fault Location of Offshore Wind Power Submarine Cables Based on SIMULINK Simulation
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摘要: 随着海上风电产业的迅速发展,大量海缆被应用于海上风电场中,承担信息与电力的传输任务。海缆出现故障将严重影响海上风电场的正常运行,对海缆进行故障定位研究具有重要意义。基于SIMULINK仿真平台,模拟海缆不同故障类型下的行为;同时,模拟特定位置故障,并利用行波法提取故障后的暂态行波信号获得正向和反向行波。采用单端行波定位和双端行波定位两种算法,依据行波到达时间差可确定故障位置。结果显示,单端行波法和双端行波法均能够有效定位故障,其中双端行波法的定位精度更高,故障点距离测量端较远时定位结果更加准确。Abstract: 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.
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Keywords:
- offshore wind power /
- submarine cable /
- fault location /
- traveling wave method
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