分布式光纤传感技术在涠洲岛跨海联网工程中的应用研究
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Study on the Application of Distributed Fiber Sensing Technology in Weizhou Island Sea-crossing Power System Connection Project
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    摘要:

    海缆长期处于复杂的海底环境中,一旦发生故障停电则对海岛造成重大影响,非常有必要对其状态进行监测以避免事故的发生。针对涠洲岛跨海联网工程现状,在综述现有海缆故障检测技术的基础上,引入了一种布里渊频移的快速测量方法并进行了验证,提出了一种基于分布式光纤传感技术的海缆温度、应变快速监测方法,详细介绍了监测系统结构和原理;在此基础上提出了一种利用有限元建模和实测光纤温度、应变的海缆运行、绝缘和机械状态评估和故障诊断方法并初步进行了验证。研究提出的解决方案对涠洲岛跨海光电复合缆监测系统的实现具有指导价值,对类似跨海光电复合缆监测系统的实现具有参考价值。

    Abstract:

    Submarine cable long operates in complicated seabed environment. Interruption of the power supply caused by submarine cable fault has a big influence on island. Therefore, its condition must be monitored to avoid power cut. In view of the status of the Weizhou island sea-crossing power system connection project, the existing submarine cable fault detection methods are reviewed. A fast Brillouin frequency shift measurement method is introduced and validated. Based on this, a fast submarine cable temperature and strain monitoring method based on distributed fiber sensing technology is proposed, and at the same time its principle and architecture are introduced. On this basis, a submarine cable operation, insulation and mechanical conditions evaluation and fault diagnosis method based on finite element method and measured fiber temperature, strain is proposed and preliminarily validated. The proposed solution is useful guides for the optic-electric composite submarine cable monitoring system in the Weizhou island sea-crossing power system connection project. It also provides a frame of reference for the realization of similar sea-crossing optic-electric composite submarine cable monitoring system.

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覃华,徐志钮,袁柏秋,甘涌泉.分布式光纤传感技术在涠洲岛跨海联网工程中的应用研究[J].科技与产业,2020,20(05):161-167

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  • 在线发布日期: 2020-05-23