[Getdp] Harmonic Formulation for parasitic capacitances?

[Ruth Vazquez Sabariego]

It is the other way around: you solve the electrostatic formulation first to get the source of your magnetodynamic problem.
The solution will be a combination of both.

Please send your questions and/or files to the getdp list.

Regards,
Ruth


—
Prof. Ruth V. Sabariego
KU Leuven
Dept. Electrical Engineering ESAT/Electa, EnergyVille
http://www.esat.kuleuven.be/electa
http://www.energyville.be

Free software: http://gmsh.info | http://getdp.info | http://onelab.info







On 25 May 2016, at 13:53, Geoffrey LOSSA [531522] <Geoffrey.LOSSA at umons.ac.be<mailto:Geoffrey.LOSSA at umons.ac.be>> wrote:

Dear Ruth,

By coupling magnetodynamic and electrostatic formulations, what i need is the potential source from magnetodynamic formulation to feed my electrostatic formulation as sources.
But I obtained something constant along the conductors. This is different from the evolution expected (increasing linear evolutioin). What is it missing in my procedure ?

Thanks again for your help.

Geoffrey L.

De : Ruth Vazquez Sabariego [mailto:ruth.sabariego at esat.kuleuven.be]
Envoyé : jeudi 7 avril 2016 12:26
À : Geoffrey LOSSA [531522] <Geoffrey.LOSSA at umons.ac.be<mailto:Geoffrey.LOSSA at umons.ac.be>>
Cc : getdp at onelab.info<mailto:getdp at onelab.info>
Objet : Re: [Getdp] Harmonic Formulation for parasitic capacitances?

Dear Geoffrey,

That’s a bit more complicated.

Wounded inductors (bobbins) are usually accounted for with a magnetodynamic formulation, that means resistive and inductive effects accounted for.
In a full wave formulation, you would have everything, resistive, inductive and capacitive effects, but it is expensive and may be unstable for low frequencies.

You may also combine/couple two different formulations, a magnetodynamic formulation and an electrostatic formulation.
For the details, have a look at the following paper:
Patrick Dular, Ruth V. Sabariego, Patrick Kuo-Peng, (2006),"Three-dimensional finite element modeling of inductive and capacitive effects in micro-coils", COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, Vol. 25 Iss: 3 pp. 642 - 651

For the implementation: you may mix the inductor model (onelab) and the one you already have.

Regards,
Ruth

—
Prof. Ruth V. Sabariego
KU Leuven
Dept. Electrical Engineering ESAT/Electa, EnergyVille
http://www.esat.kuleuven.be/electa
http://www.energyville.be<http://www.energyville.be/>

Free software: http://gmsh.info<http://gmsh.info/> | http://getdp.info<http://getdp.info/> | http://onelab.info<http://onelab.info/>






On 06 Apr 2016, at 09:05, Geoffrey LOSSA [531522] <Geoffrey.LOSSA at umons.ac.be<mailto:Geoffrey.LOSSA at umons.ac.be>> wrote:

Dear all,

How to take into account  the evolution of parasitic pacacitances  with the operating frequency in the case of a wounded inductor? Is there an other formulation to use ?

Thanks for your help,

Geoffrey

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