概括
电击,无论是感应还是直接的,都会破坏光学接地线 (OPGW) 中的信号光极化. 一个新的过渡模型准确地预测了这些信号SOP中断,通过来自电力传输线路的现场数据进行验证.
科学领域:
- 电气工程 电气工程
- 光学通信是指光学通信.
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 光学接地线 (OPGW) 对于电力输电线路监控和通信至关重要.
- 闪电是影响电力基础设施的已知环境危害.
- 在OPGW中,闪电对信号灯极化状态 (SOP) 的影响尚不清楚.
研究的目的:
- 调查诱导和直接闪电对OPGW中信号光的SOP的影响.
- 开发一种暂时模型,用于预测由于直接闪电导致OPGW的SOP变化.
- 通过运行电力传输线路的现实数据来验证拟议的模型.
主要方法:
- 直接闪电对OPGW影响的螺旋组成部分的扣除.
- 建立基于直接闪电的OPGW中信号SOP的过渡模型.
- 在易发生雷暴的地区,对OPGW上的光传输网络 (OTN) 系统进行为期三个月的现场监测,使用比特错误率测试仪和极相仪记录错误代码和SOP过渡值.
主要成果:
- 在运行中的OTN系统中观察到的SOP过渡值超过1.5 Mrad/s.
- 记录了最高的SOP过渡率,达到高达43 Mrad/s.
- 开发的瞬态模型通过模拟和实验比较证明了准确性.
结论:
- 直接闪电显著影响OPGW中信号灯的SOP.
- 建立的短暂模型提供了一个准确的方法来预测闪电引起的SOP变化.
- 这些发现对于提高电力传输线路通信系统的弹性和可靠性至关重要.
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