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Problem with solving AC/DC Module with soft iron in frequency domain
Posted Mar 6, 2013, 6:08 p.m. EST Low-Frequency Electromagnetics, Studies & Solvers Version 4.3a 1 Reply
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Hello,
I have a weird problem that I can't find a solution to and I really appreciate your help with this matter.
I have a simple 2D model of two coils with opposite currents. The coils are surrounded by an iron core with non-linear permeability (BH curve). I am trying to get the magnetic field distribution for 60Hz currents.
I added a new ampere's law for the iron and selected BH curve.
When I solve stationary, I get a solution.
When I solve with linear permeability I get a solution.
But when I solve in frequency domain I get no solution with the following error:
Failed to find a solution.
Maximum number of Newton iterations reached.
Returned solution is not converged.
I have attached a picture of my model and would really appreciate your help with it.
I have a weird problem that I can't find a solution to and I really appreciate your help with this matter.
I have a simple 2D model of two coils with opposite currents. The coils are surrounded by an iron core with non-linear permeability (BH curve). I am trying to get the magnetic field distribution for 60Hz currents.
I added a new ampere's law for the iron and selected BH curve.
When I solve stationary, I get a solution.
When I solve with linear permeability I get a solution.
But when I solve in frequency domain I get no solution with the following error:
Failed to find a solution.
Maximum number of Newton iterations reached.
Returned solution is not converged.
I have attached a picture of my model and would really appreciate your help with it.
Attachments:
1 Reply Last Post Mar 7, 2013, 12:49 a.m. EST
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Posted:
1 decade ago
Hi
how are the current flowing, for me in 2D its not a "coil" but a wire and your current is flowing in the Z direction out of plane. For me the coil physics is for a current doing a loop IN the plane. You should "just" define surface currents, in my view
--
Good luck
Ivar
how are the current flowing, for me in 2D its not a "coil" but a wire and your current is flowing in the Z direction out of plane. For me the coil physics is for a current doing a loop IN the plane. You should "just" define surface currents, in my view
--
Good luck
Ivar