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AC Voltage source in magnetic field interface.

Posted Mar 30, 2012, 8:27 a.m. EDT Low-Frequency Electromagnetics Version 4.2a 2 Replies

Nicola Gagliardi
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Hi,

I'd like to study the distribution of resistive losses on a slab with eddy current produced by an inductor. In my study the inductor works with an AC voltage of 300V with a frequency of 10kHz. I tried to build a model to do that and i use symmetry in order to avoid large number of degree of freedom. The model is a eighth of the real dimension. My question is: How i can give the voltage difference, so i mean how i can generate current? In the model i'm using the impedence boundary condition and the difference voltage is applied in the surface number 8 and 17.

Can someone help me.

Thanks

Nicola

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2 Replies Last Post Apr 2, 2012, 2:45 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Mar 30, 2012, 1:55 p.m. EDT
Hi

I would suggest to use the frequency domain solver, then to set one boundary to the GND and another to a terminal/lumped port with a given voltage (amplitude)

--
Good luck
Ivar
Hi I would suggest to use the frequency domain solver, then to set one boundary to the GND and another to a terminal/lumped port with a given voltage (amplitude) -- Good luck Ivar
Ralf Tschiesche
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Posted: 1 decade ago Apr 2, 2012, 2:45 a.m. EDT
Hi,

you can play with lumped port. I have modified your model with full geometry (symmetry is not so easy for magnetic fields).

Ralf
Hi, you can play with lumped port. I have modified your model with full geometry (symmetry is not so easy for magnetic fields). Ralf

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