高压直流海缆综合在线监测系统研究
发布时间：2018-11-19 18:55
【摘要】：直流海底电缆在我国的应用尚处于起步阶段,运行经验不足,同时由于海底环境复杂,例行巡检困难,因此亟需对直流海缆的在线监测方法进行研究。分布式光纤技术是近年来发展的新型光纤传感技术,可实现对温度、应力等参量的在线测量。文章建立了基于分布式光纤传感技术的高压直流海底电缆综合在线监测系统,综合利用了分布式光纤的BOTDA,ROTDR以及Φ-OTDR原理,提出了布里渊频移解耦方案,可对直流海缆运行过程中的温度、应变、扰动等进行实时测量,同时该系统还融合了船舶AIS功能,实现对直流海缆区域内来往船只的监测及警告,保障了直流海缆的安全稳定运行。最后对该系统在南澳±160 k V直流海缆工程中的运行数据进行分析,验证了系统的有效性。
[Abstract]:The application of DC submarine cable in our country is still in its infancy, and its operation experience is not enough. At the same time, it is urgent to study the on-line monitoring method of DC submarine cable because of the complexity of submarine environment and the difficulty of routine inspection. Distributed optical fiber technology is a new type of optical fiber sensing technology developed in recent years, which can be used to measure temperature, stress and other parameters online. In this paper, an integrated on-line monitoring system of HVDC submarine cable based on distributed optical fiber sensing technology is established. The principle of BOTDA,ROTDR and 桅-OTDR of distributed optical fiber is comprehensively utilized, and the Brillouin frequency shift decoupling scheme is proposed. The temperature, strain and disturbance of DC submarine cable can be measured in real time. At the same time, the system integrates ship AIS function to monitor and warn ships in and out of DC submarine cable area. It ensures the safe and stable operation of DC submarine cable. Finally, the operation data of the system in Nanao 卤160kV DC cable project are analyzed, and the validity of the system is verified.
【作者单位】： 广东电网有限责任公司汕头供电局;华北电力大学河北省输变电设备安全防御重点实验室;
【基金】：广东电网公司科技项目(K-GD2014-0488)
【分类号】：P756.1;TP274
，
本文编号：2343144
[Abstract]:The application of DC submarine cable in our country is still in its infancy, and its operation experience is not enough. At the same time, it is urgent to study the on-line monitoring method of DC submarine cable because of the complexity of submarine environment and the difficulty of routine inspection. Distributed optical fiber technology is a new type of optical fiber sensing technology developed in recent years, which can be used to measure temperature, stress and other parameters online. In this paper, an integrated on-line monitoring system of HVDC submarine cable based on distributed optical fiber sensing technology is established. The principle of BOTDA,ROTDR and 桅-OTDR of distributed optical fiber is comprehensively utilized, and the Brillouin frequency shift decoupling scheme is proposed. The temperature, strain and disturbance of DC submarine cable can be measured in real time. At the same time, the system integrates ship AIS function to monitor and warn ships in and out of DC submarine cable area. It ensures the safe and stable operation of DC submarine cable. Finally, the operation data of the system in Nanao 卤160kV DC cable project are analyzed, and the validity of the system is verified.
【作者单位】： 广东电网有限责任公司汕头供电局;华北电力大学河北省输变电设备安全防御重点实验室;
【基金】：广东电网公司科技项目(K-GD2014-0488)
【分类号】：P756.1;TP274
，
本文编号：2343144
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