海上风电场海底高压电缆故障监测方法的研究

Study on High Voltage Submarine Cable Fault Monitoring Methods of the Offshore Wind Farm

海底高压电缆是海上风电场传输电能的重要组成组成部分,因此海底高压电缆的安全运行对海上风电电力系统至关重要。针对分布式光纤传感器在线监测海底高压电缆运行状况的方法,利用有限元软件ANSYS建立XLPE海底高压电缆模型,仿真分析海底高压电缆在不同故障形式下,海底高压电缆内部物理量的变化,为分布式光纤传感器在线监测海底高压电缆运行状态提供参考。最后,根据这些仿真结果提出了一个信息融合的模型,以方便综合利用这些特征量和提高定位精度。

Submarine high voltage cable is an important component of the wind farm for power transmission.So the safe operation of the high-voltage undersea cable on the power system is critical.According to the distributed optical fiber sensor monitoring methods,finite element software ANSYS was used to establish XLPE high-pressure submarine cable model.The simulation analysis the change of the internal physical quantities,by simulating different submarine cable fault forms.This simulation provided the reference for online monitoring running state by distributed optical fiber sensor.Finally,for the utilization of these feature quantities and improving the fault location precision,a information fusion model were put forward according to the simulation results.