Litz wire

Alvaro_21870

I would like to know how to select a design for the wiring using Litz wires.

Is there a way of doing it in Fluxmotor or at least a decent approximation that could help me ? 

Thank you in advance

fzidat

Hello Alvaro;

In FluxMotor, there is no way to use Litz wires. You have a choice to use round wires or square wires. 

May be you can play on the number of wires in hand, so you need to know the diameter of one elementary wire of your Litz coil.

 

In FluxMotor, the distribution of the current is considered homegenous, so the losses due to the proximity effect and stray magnetic flux are not taken into account, only the Joule losses R*I² are taken into account.

 

In the future version, we are going to add, what we call AC losses, this will be done using some homogenous technique.

 

Regards 

Alvaro_21870

Farid zidat_20516 said:

Hello Alvaro;

In FluxMotor, there is no way to use Litz wires. You have a choice to use round wires or square wires. 

May be you can play on the number of wires in hand, so you need to know the diameter of one elementary wire of your Litz coil.

 

In FluxMotor, the distribution of the current is considered homegenous, so the losses due to the proximity effect and stray magnetic flux are not taken into account, only the Joule losses R*I² are taken into account.

 

In the future version, we are going to add, what we call AC losses, this will be done using some homogenous technique.

 

Regards 

Thank you for your reply!

I did that and it works, the only problem with simulating it like that is that although my gross fill factor stays the same, the Net fill factor goes over 100%. Would that be a problem when simulating and exporting geometry to flux?

 

Thank you in advance 

fzidat

You are welcome!

 

The net fill factor is used to compute the phase resistance, and if it is more 100%, so your winding is technically not feasable. So you have to use the right settings. 

 

To export to Flux this project, this will not be an issue, but again your net fill factor is not realistic.

 

Regards

Alvaro_21870

Farid zidat_20516 said:

You are welcome!

 

The net fill factor is used to compute the phase resistance, and if it is more 100%, so your winding is technically not feasable. So you have to use the right settings. 

 

To export to Flux this project, this will not be an issue, but again your net fill factor is not realistic.

 

Regards

Hi Farid,

I guess the net fill factor is like that due to the software not being compatible with litz wires.

So instead of having the insulation for the whole pack, it adds it to each individual wire and that is how I end up with that value.

Even if I know that value is not real (in real life it would be a proper litz wire winding), would that give me error or problems when simulating ?

Cause using this approximation to Litz wire instead of a standard copper wire, I would get lower temperature in the winding right?

For me my main concern or main constraint is not reaching a certain temperature in the windings.

 

Thank you again !!:)