Gaoya dianqi, 2010 OPGW因雷击而断股,不仅会影响到输电线路的安全运行,而且会威胁到电力系统通信和继电保护的可靠性。因此,对OPGW雷击断股的分析和研究就显得尤为重要。笔者采用有限单元法（FEM）分析OPGW遭雷击时的高温情况。首先在对OPGW遭雷击时的能量转换和传递过程分析的基础上建立了温度场的数学模型,并进一步阐述了使用有限单元法对该温度场进行数值求解的空间域和时间域离散过程。分析了雷电电弧弧根的能量功率函数及其影响因素,以此作为OPGW分析温度场的外热源。雷击点的热流分布采用高斯热源模型 ...
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