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Is there any good way to simulate a suqare inductor

Posted Nov 30, 2013, 11:14 p.m. EST Low-Frequency Electromagnetics Version 4.3a 3 Replies

Lingling Tang
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Usually the circular inductor can be simplified as a 2D axisymmetric model in COMSOL, which means much less elements, DOF and memory cost.
However, if we want to simulate a square inductor, does it means we can only use the 3D model?
I build a 3D model, and add the Single Turn Coil Domain feature to this, but it seems to be hard to get a convergence.
Is there some tips which shall be noticed when model a non-circular section closed loop with the "Gap feed" Single Turn Coil Domain feature?
Wish to receive some feedbacks!

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3 Replies Last Post Feb 3, 2014, 5:22 a.m. EST
COMSOL Moderator

Hello Lingling Tang

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Mohamed Hadj Said
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Posted: 1 decade ago Jan 31, 2014, 2:17 p.m. EST
Hi,
i'm interesting for the same probleme, do you have any sucsess for this rectangulaire coil ??
Cheers,
Hi, i'm interesting for the same probleme, do you have any sucsess for this rectangulaire coil ?? Cheers,
Julien Givernaud
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Posted: 1 decade ago Feb 3, 2014, 4:52 a.m. EST
Hello,

Use lumped ports is a good way to do this, see 3D power inductor tutorial.

Best regards
Hello, Use lumped ports is a good way to do this, see 3D power inductor tutorial. Best regards
Lingling Tang
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Posted: 1 decade ago Feb 3, 2014, 5:22 a.m. EST
If the single turn coil domain is used yo simulate the non-circular inducyor, the default solver is hard to get a convergence , and finnally I added the Vanka to the default iterative solver. The varianle for the vanka solver is only the magnetic vector potential, i.e A. Besides, the disadvantage for vanka is it can only be used for linear element discretization.
good luck!
If the single turn coil domain is used yo simulate the non-circular inducyor, the default solver is hard to get a convergence , and finnally I added the Vanka to the default iterative solver. The varianle for the vanka solver is only the magnetic vector potential, i.e A. Besides, the disadvantage for vanka is it can only be used for linear element discretization. good luck!

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