长直平行双导线电感传统计算方法误差分析与修正  

Error Analysis and Correction of Traditional Method for Long Straight Parallel Double-Conductor Circuit's Inductance Value Calculation

作　　者：王琦[1,2] 赵启明[2] 袁建生 

机构地区：[1]武汉科技大学信息学院,湖北武汉430081 [2]清华大学电机系,北京100084

出　　处：《电线电缆》2017年第6期1-4,40,共5页Wire & Cable

摘　　要：线路电感计算对于网络分析至关重要,针对同轴电缆和双导线回路两种基本线路形式,分析电感传统计算方法的有效性,并通过有限元数值法计算电感值。对比结果表明,随着双导线回路导线间距的减小,传统方法计算误差逐渐增大,分析了误差产生的原因。在此基础上,提出了在传统计算公式中加入修正因子来减小计算误差的方法,并给出了修正因子表达式。研究成果可为电力电子网络计算提供更准确的参数计算理论与方法。This paper focuses on the calculation of circuit inductance. The validity of the traditional calculation meth-od is analyzed in the two basic forms of the coaxial cable and the double conductor circuit, and the inductance values are calculated by the Finite Element Analysis （ FEA）. The comparison results show that the error of the traditional method increases gradually with the decrease of the distance between two conductors, and the cause of the error is an-alyzed. On the basis of this, a correction factor is proposed to be added into the current calculating formula to reduce error, and the correction factor expression is given. The research result provides a more accurate parameter calcula-tion theory and method for power network parameter calculation.

关 键 词：长直平行双导线 同轴电缆 电感计算 内电感与外电感 

分 类 号：TM153[电气工程—电工理论与新技术]