一般空心平面线圈电感计算的数值方法与计算精度控制

为适应一般空心平面线圈电感的分析与设计需要,本文由有限长直导线磁场空间分布出发,给出了一种空心平面线圈电感与互感的数值求解方法.算法根据电感的计算精度指标、导线线径与线圈曲线部分平均曲率半径,确定线圈直线逼近划分与线圈面积细分方式,进而给出对应电感计算原理性误差界限,由磁链法计算得到一般形状平面线圈的自感,及其对其他线...

Numeric Inductance Calculation and Evaluation for Air-Cored Flat Coils

This paper put forward a numeric method to resolve the inductances of/between universal air-cored planar coils.Inductance evaluations are done according to magnetic-flux inside the coil boundaries.Universal current curves are linearized and the inductance evaluation precision is given in accordance to the specified numeric calculation precision,current track diameter and average curvatures along corresponding current tracks.The author compares recommended numeric method and conventional Greenhouse method for rectangular air-cored coil,in addition to a single circular coil inductance that has proved inductance formula,besides a planar coil inductance calculated by Ansys7.1,all the results perfectly agree with each other.Recommended algorithm is driven by current track data and numeric inductance precision could be controlled,which offers a great convenience for universal air-cored coil design.