[Getdp] Harmonic Formulation for parasitic capacitances?
Ruth Vazquez Sabariego
ruth.sabariego at kuleuven.be
Wed May 25 15:08:58 CEST 2016
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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