3D LUT

AcePik

Hi

How we can generate 3D LUT from flux 3D models for use in PSIM?

Thanks

Makan

Lavanya Vadamodala_20519

Hi Acepik,

Under Macros for system analysis, you will find Macros for 2D, 3D, and skew models to create look-up tables for PSIM.

If you are using Flux version 2022.3, here is the link where you can fine more information :

file:///C:/Program%20Files/Altair/2022.3/flux/Flux/Help/english/Macros/english/topics/macros_4SystemAnalysis_r.htm

Thank you,

Lavanya

AcePik

thanks dear Lavanya for prompt reply

Will look and get back again

Kind regards

Makan

AcePik

Hi Lavanya

I did so but it gives an error. 

''Exception('The interval represented must contain an integer number of stator periodicities',)''

Can you help with this please?

Thanks

 

Lavanya Vadamodala_20519

AcePik said:

Hi Lavanya

I did so but it gives an error. 

''Exception('The interval represented must contain an integer number of stator periodicities',)''

Can you help with this please?

Thanks

 

Hi AcePik,

What is the slot/pole combination for your model?

Can you send me the picture of the values you provided for the Macro?

Thank you,

Lavanya

AcePik

Hi Lavanya

slots 24

poles 20

1/8 of the machine is modeled. 1 symmetry, 4 periodicity.

thanks

AcePik

Hi Lavanya

Is any other information is needed to get this sorted?

Thanks

Lavanya Vadamodala_20519

AcePik said:

Hi Lavanya

slots 24

poles 20

1/8 of the machine is modeled. 1 symmetry, 4 periodicity.

thanks

Hi,

Sorry I missed your message.

In the 3D LUT for system analysis, you need to have either one pole represented if possible. If one pole is not possible, then you need to have an integer number of pole pairs.

In your case, with a periodicity of 4, it is not possible to use the Macro since there are 2.5 pole pairs represented. You need to have half model represented with 2 periodicity. This will give 5 pole pairs represented.

With this, the Macro for system analysis will go through and create lookup tables for the motor model.

Please let me know if you have follow-up questions.

Thank you,

Lavanya

 

AcePik

Lavanya Vadamodala_20519 said:

Hi,

Sorry I missed your message.

In the 3D LUT for system analysis, you need to have either one pole represented if possible. If one pole is not possible, then you need to have an integer number of pole pairs.

In your case, with a periodicity of 4, it is not possible to use the Macro since there are 2.5 pole pairs represented. You need to have half model represented with 2 periodicity. This will give 5 pole pairs represented.

With this, the Macro for system analysis will go through and create lookup tables for the motor model.

Please let me know if you have follow-up questions.

Thank you,

Lavanya

 

Hi Lavanya

Thanks for commenting.

Will make 2 instead of 4 and let you know if it doesn't work.

Kind regards

AcePik

AcePik said:

Hi Lavanya

Thanks for commenting.

Will make 2 instead of 4 and let you know if it doesn't work.

Kind regards

Sorry Lavanya
How about other parameters?

Can you please advise on other parameters of the LUT creation as well?

Thanks

Lavanya Vadamodala_20519

AcePik said:

Sorry Lavanya
How about other parameters?

Can you please advise on other parameters of the LUT creation as well?

Thanks

Other parameters look good.

You can use the same. No need to change.

 

AcePik

Lavanya Vadamodala_20519 said:

Other parameters look good.

You can use the same. No need to change.

 

ok Thanks

Lavanya Vadamodala_20519

AcePik said:

ok Thanks

Hi,

This Macro uses Distributed solving while running.

The error is coming up since Distributed solving is not activated. You can activate from Flux supervisor < Click on "Distribution Manager" < Select "Allow" to start using Distributed solving.

You will find more information about Distribution manager and its settings in the link below :

file:///C:/Program%20Files/Altair/2022.3/flux/Flux/Help/english/ReleaseNote/2022Release/Flux/topics/flux2022.3_ParametricDistribution.htm?hl=distribution%2Cmanager

Thank you,

Lavanya

AcePik

Lavanya Vadamodala_20519 said:

Hi,

This Macro uses Distributed solving while running.

The error is coming up since Distributed solving is not activated. You can activate from Flux supervisor < Click on "Distribution Manager" < Select "Allow" to start using Distributed solving.

You will find more information about Distribution manager and its settings in the link below :

file:///C:/Program%20Files/Altair/2022.3/flux/Flux/Help/english/ReleaseNote/2022Release/Flux/topics/flux2022.3_ParametricDistribution.htm?hl=distribution%2Cmanager

Thank you,

Lavanya

Hi Lavanya

Thanks for this

Actually it was sorted by changing the solver to MUMPS local. 

but the solution you advised is helpful.

Kind regards

 

AcePik

Lavanya Vadamodala_20519 said:

Hi,

This Macro uses Distributed solving while running.

The error is coming up since Distributed solving is not activated. You can activate from Flux supervisor < Click on "Distribution Manager" < Select "Allow" to start using Distributed solving.

You will find more information about Distribution manager and its settings in the link below :

file:///C:/Program%20Files/Altair/2022.3/flux/Flux/Help/english/ReleaseNote/2022Release/Flux/topics/flux2022.3_ParametricDistribution.htm?hl=distribution%2Cmanager

Thank you,

Lavanya

Just a quick update

We did what you said instead of running MUMPS local and the error appeared again!

Thanks

AcePik

Hi Lavanya

we ran the quarter model instead of 1/8 and the weird thing is, the produced torque in quarter case is half of the 1/8 case. The BEMF value is correct though. 

Any thoughts on this? could it be a software bug? I deleted the coils and created them again, but still the torque is not the same. 

If I get the torque right, then will carry out LUT. 

Thanks