File Exchange

image thumbnail

inuctancies for wire loops

version 1.0 (5.36 KB) by

calculates self inductance and mutual inductance



View License
calculates self inductance and mutual inductance for wire loops in 3d. There are two functions:

L=self_inductance(x,y,r) calculates self indactance for plane wire loop, that is polygon. x,y is vertices of the polygon. r- wire radius. The L is calculated by numerical integration of magnetic field flux: F=L*I, then L=F/I. Considered high frequency case when no field inside wire. Note: small wire radius can not be neglected in self inductance.

calculates mutual inductance of two loops that is polygons in 3d. x1 y1 z1 -vertices of first loop. x2 y2 z2 -vertices of second loop. Note: wire radius considered much smaller then typical loops size, then no inputs for wire radius in the function. It calculated numerically by integration Newman formula:

test_self_inductance.m is test for self_inductance function it compare theoretical and calculated values for self inductance for ring.

calculated value: 7.2355e-006 H
real value: 7.9093e-006 H

i.e 10% error

guess for mutual inductance is more precise (not checked carefully).

Any way it is possible to make more small elements in meshes so increase precision (and computational time).

squares_in_polygon - auxiliary function.

Comments and Ratings (0)

MATLAB Release
MATLAB 7.11 (R2010b)

Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.

» Watch video