蒋兴良;林锐;张志劲;胡琴;孙才新;

• 1:输配电装备及系统安全与新技术国家重点实验室(重庆大学)

摘要(Abstract)：

建立了导线覆冰过程的热平衡方程,同时考虑绞线几何外形及集肤效应对传热过程的影响,提出了基于焦耳热效应的输电线路导线保线电流计算公式,并采用Runge-Kutta算法对水滴运动轨迹进行模拟,得到碰撞系数这一关键参量值。仿真结果表明,保线电流是导线外径、导线电阻、表面几何外形等导线自身参数以及环境温度、风速、水滴中值体积直径、空气中液态水含量等大气参数的函数;得到了不同绞线在典型覆冰类型下的保线电流,与人工气候室的试验结果相吻合。将该模型的预测结果与其他模型进行了比较,进一步证明该模型的准确性。

关键词(KeyWords)： 大气参数;覆冰;保线电流;运动轨迹;交流线路

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划项目(973项目(2009CB724501);; 重庆市科委自然科学基金计划资助项目(2008BB6157)~~

作者(Author): 蒋兴良;林锐;张志劲;胡琴;孙才新;

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DOI:

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