光纤复合低压电缆温度分布与光单元传输特性研究

发布时间：2018-01-08 00:25

本文关键词：光纤复合低压电缆温度分布与光单元传输特性研究　出处：《量子电子学报》2017年01期 　论文类型：期刊论文

【摘要】：研究线缆发热与光单元传输特性变化之间的关系对光纤复合低压电缆(OPLC)设计及应用十分重要。用COMSOL软件模拟仿真光纤复合低压电缆的稳定运行和短路故障状态,得到其相应的电缆温度分布以及光单元传输损耗特性。选取线缆上不同位置处的特征点进行仿真,结果表明:电缆故障时导体绝缘层内升温较明显,外护套温度变化不明显;光纤温度变化很小,在5 s内只有0.2°C的上升。由热膨胀引起的位移很小,使得传输损耗在这两种情况下几乎一样,短路故障对光纤的温度影响不大。设计光单元升温实验得到光缆传输损耗的数据,并与仿真数据进行对比分析。实测温度数据滞后于仿真数据5 s,但与仿真数据变化趋势一致,证明了仿真模型的可靠性和可行性。
[Abstract]:Study on the relationship between the heating of Cable and the change of Transmission characteristics of Optical Unit on Optical Fiber Composite Low-voltage Cable (OPLC). It is very important to design and apply the COMSOL software to simulate the stable operation and short circuit fault state of fiber composite low voltage cable. The temperature distribution of the cable and the transmission loss characteristics of the optical unit are obtained. The characteristic points at different positions on the cable are selected for simulation. The results show that the temperature rise in the conductor insulation is obvious when the cable fails. The change of outer sheath temperature is not obvious; The temperature change of the fiber is very small, only 0.2 掳C rises in 5 s. The displacement caused by thermal expansion is very small, so the transmission loss is almost the same in both cases. The short circuit fault has little effect on the temperature of optical fiber. The data of transmission loss of optical cable are obtained by the design of optical unit heating experiment, and compared with the simulation data. The measured temperature data lag behind the simulation data for 5 s. But it is consistent with the trend of simulation data, which proves the reliability and feasibility of the simulation model.
【作者单位】：南京邮电大学光电工程学院光电传感工程研究中心;
【基金】：国家自然科学基金,11547031 区域光纤通信网与新型光通信系统国家重点实验室”开放基金,2015GZKF03006 江苏省光通信工程技术研究中心资助项目,ZSF0201 南京邮电大学教改项目,JG00613JX61~~
【分类号】：TM75;TN913.33
【正文快照】： 1引言人们对信息的需求已从单纯的数据信息向交互式多媒体信息发展,所需信息传输速率也越来越高W。光纤能够很好地满足当前信息社会对通信传输介质的要求,得到了越来越多的应用。然而光纤的铺设需要极大的资源和时间,为了减少对资源的浪费以及缩短建设周期,将光纤架设到电力网

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