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3D coil inductance with frequency domain

Posted May 17, 2012, 11:28 a.m. EDT Low-Frequency Electromagnetics Version 4.2 0 Replies

Hongyu Li
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I modeled a coil to calculate the inductance in both 2d symmetric axis and 3d with frequency domain. It gives a rise an issue that the value of calculated inductances are different.

Since there is no directly option for inductance in 3D, I use the following fomula:
L=N*flux/I0
L: inductance
Flux: integration of magnetic flux density over a closed surface
N: number of turn
I0: the applied current

The value of inductance in 2D is equal to 5.0408e-5H, while in 3D is 4.226e-5H.
However, it gets closer to results from 2D when I changed frequency domain to stationary domain in 3D which is 5.0803e-5H.

Can anyone give me a favour?


Regards,
Hongyu Li

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0 Replies Last Post May 17, 2012, 11:28 a.m. EDT
COMSOL Moderator

Hello Hongyu Li

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