Transient Magnetic 2D Analysis of Coupled Inductor in Altair Flux 2025

Adil_Sheikh

Hello community members,

I have modeled a couple inductor in the "Transient Magnetic 2D application". And I want to perform a transient analysis by exciting the coils with specific exponential decaying waveforms. I don't know how to do that as there are not enough content about it.

Moreover, in "Solving scenario window" there are two tabs:

1) Control of transient state and

2) Control of parameters

I don't know either how to assign values here and perform my transient analysis.

Any sort of help is appreciable. Waiting for reply!

PS: I am using a student version.

Lavanya Vadamodala_20519

Hi Adil,

You can input the input to coils either as table of data or a exponential function to the source.

When you create input as table of data, I/O Parameter will be automatically created. You can call this parameter in the input source. For example, by clicking on Parameter I/O, I created new parameter called Current. Under function, click on New Parameter < give name and expression. This will create the parameter and assign it to parameter CURRENT

If you want to run the model with respect to time alone, then you need to use Control of transient state and give the lower and higher limits, step value.

If you want to change the parameter like maximum current along with time for example, then you use both control of transient state and parameters. For example instead of 20 A in current function, I can create a new parameter controlled by scenario. When the scenario is defines as below :

Flux will run the model for 17 times (at each current value) for time 0s to 1s.

Hope I have answered your question.

Thank you,

Lavanya

Lavanya Vadamodala_20519

Hi Adil,

Are you getting an error? can you paste it here, please?

If you have a current source, source, and target coils, the computation of the inductance matrix should run without any issue.

Thank you,

Lavanya

Lavanya Vadamodala_20519

Hi Adil,

You can input the input to coils either as table of data or a exponential function to the source.

When you create input as table of data, I/O Parameter will be automatically created. You can call this parameter in the input source. For example, by clicking on Parameter I/O, I created new parameter called Current. Under function, click on New Parameter < give name and expression. This will create the parameter and assign it to parameter CURRENT

If you want to run the model with respect to time alone, then you need to use Control of transient state and give the lower and higher limits, step value.

If you want to change the parameter like maximum current along with time for example, then you use both control of transient state and parameters. For example instead of 20 A in current function, I can create a new parameter controlled by scenario. When the scenario is defines as below :

Flux will run the model for 17 times (at each current value) for time 0s to 1s.

Hope I have answered your question.

Thank you,

Lavanya

Adil_Sheikh

Hi Lavanya,

Thank you for your prompt reply. That solved my concern.

I am curious to know is it possible to analyze the self and mutual inductance of the coupled inductor? And also the coupling factor between the two coupled windings as these are necessary for designing the coupled inductor.

I tried to do that using the "computation" tab but didn't succeed.

Please help me with this.

Thank you so much!

Lavanya Vadamodala_20519

Hi Adil,

Are you getting an error? can you paste it here, please?

If you have a current source, source, and target coils, the computation of the inductance matrix should run without any issue.

Thank you,

Lavanya

Adil_Sheikh

Hi Lavanya,

I solved it! Thank you for your help.

Now I have self and mutual inductance matrix.

One more thing, I have modeled my coupled inductor just using "Regions" and injected current into the windings. To study more I want to see how I can use the "Electric circuit" for modeling. Is there a good source to study that? If you have please share.

Thank you once again!