载流导线等效电阻与频率关系研究

Relation between the equivalentresistance and frequence in transmission line

依据趋肤效应对导线横截面电流密度分布的影响,推导出交流载流导线等效电阻的表达式,并将等效电阻随频率变化的计算值与实验测试值进行了比较,发现频率越大,误差越大,可相差10多倍.但在考虑了导线的电感值时,实验结果与理论计算基本一致.这说明导线自身电感对实验结果的影响至关重要.

The equivalent resistance of transmission line is calculated, according to the effect of skin effect for the distribution of current density in the cross_section of transmission line. The calculated data is not in agreement with the experimental data. But the calculated data is in agreement with the experimental data, after take into account of self_inductance of transmission line. It is proved that the effect of self_inductance of transmission line can not been neglected in the experiment.