Error when solving a 3 phase transformer project

Garrett Jepson
Garrett Jepson Altair Community Member
edited December 2022 in Community Q&A

While attempting to solve a transformer model I made, I get the following error:

"The project has non meshed coil but it has no region
with reduced potential formulation :
MD3RED or MD3SCRHJ (or MD3SCRT0W)"

I followed the Flux 3-phase transformer example, with some modifications to the geometry. Unfortunately I cannot post my .FLU file, but it's a 3 phase transformer with slight separation between each of the core legs.

Any idea what these errors mean? All help is appreciated.

 

EDIT:

For any others having this problem.

In my case, I did not have volumes surrounding my non-meshed coils, which gives the error. I was able to reproduce the error in the Transformer tutorial by also getting rid of the volumes surrounding the non-meshed coil.

I now know of two ways to fix or get around this. The easiest/laziest way is to go to Application -> Edit Current Application -> Formulation Model, then choose "Magnetic Vector Potential Formulations" under Formulation Model and "Edge finite elements" under approximating functions type for vector potential. 

The other way is to add volumes surrounding your non-meshed coils. This is probably the smarter way to do it.

Thanks for the replies, hope this helps someone in the future.

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Answers

  • Alexandru-Ionel Constantin
    Alexandru-Ionel Constantin Altair Community Member
    edited December 2022

    Hi Garrett Jepson,

     

    Try to edit the application formulation model settings to Automatic formulations from Application>Edit current application, as in the figure below:

    image

     

    If it is not working please send a case to the support adding your .FLU file(it is confidential):

    image

     

    Best regards,

    Alexandru

  • Letizia_Ferrara
    Letizia_Ferrara
    Altair Employee
    edited December 2022

    Hello Garrett,

    Yes, as Alexandru wrote, it would be useful to check the model to help you; you can upload it here or open a new support request in the appropriate section if you want to keep private your model.

    Regards,

    Letizia

  • Garrett Jepson
    Garrett Jepson Altair Community Member
    edited December 2022
    Alexandru-Ionel Constantin said:

    Hi Garrett Jepson,

     

    Try to edit the application formulation model settings to Automatic formulations from Application>Edit current application, as in the figure below:

    image

     

    If it is not working please send a case to the support adding your .FLU file(it is confidential):

    image

     

    Best regards,

    Alexandru

    Thanks Alexandru. I ended up being able to fix it by changing my Formulation Model to Magnetic vector potential fomulations, edge finite elements". Unsure why Automatic Formulations didn't work though, so will create a product case.

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