How to calculate INDUCTANCE COMPUTATION for 10 pole periodic machine.

Pradeep Shankar_22370

Hi,

How to calculate INDUCTANCE COMPUTATION for 5 pole periodic machine.

i tried using CreateLookUpTableFromTMProjectDQLight.PFM macro but there is an Exception('Represented pole pairs must be integer or 0.5',) error

how to rectify it and is there any other ways to calculate Id and Iq values at a specific speed point in 2d?

Thanks
Pradeep Shankar

 

Mohammed Elamin_22169

Hi Pradeep, 

Do you mean the machine has a total of 5 poles or 5 poles pairs? It is uncommon to have odd number of poles on electric machine. What you need to enter on this macro is the number of pole pair represented on the geometry of the model (for example if you modeling 1 pole in the model you would use 0.5). 

Otherwise, you can check the attached document which explain the procedure/steps you need to compute dq inductances. 

Thanks,  

Pradeep Shankar_22370

Mohammed Elamin_22169 said:

Hi Pradeep, 

Do you mean the machine has a total of 5 poles or 5 poles pairs? It is uncommon to have odd number of poles on electric machine. What you need to enter on this macro is the number of pole pair represented on the geometry of the model (for example if you modeling 1 pole in the model you would use 0.5). 

Otherwise, you can check the attached document which explain the procedure/steps you need to compute dq inductances. 

Thanks,  

Hi Mohammed Elamin,

There are 10 poles in a machine (5 pole pairs), I'm simulating periodic model it has 5 pole, so i taken number of pole pair represented on the geometry as 2.5 (0.5 for 1 poles)

Thanks

Mohammed Elamin_22169

Pradeep Shankar_22370 said:

Hi Mohammed Elamin,

There are 10 poles in a machine (5 pole pairs), I'm simulating periodic model it has 5 pole, so i taken number of pole pair represented on the geometry as 2.5 (0.5 for 1 poles)

Thanks

Hi Pradeep, 

Okay, I see. Unfortunately this a limitation on this macro and it is excepted to be removed on the next version of Flux expected on April. 

If possible try to model an even number of poles or just one. If not you can refer to the document I shared and works everything from scratch. 

Thanks,  

Ramon Perez

Mohammed Elamin_22169 said:

Hi Pradeep, 

Do you mean the machine has a total of 5 poles or 5 poles pairs? It is uncommon to have odd number of poles on electric machine. What you need to enter on this macro is the number of pole pair represented on the geometry of the model (for example if you modeling 1 pole in the model you would use 0.5). 

Otherwise, you can check the attached document which explain the procedure/steps you need to compute dq inductances. 

Thanks,  

Hello Mohammed Elamin

The document that you have shared will be of great reference to me. Did I want to ask you if maybe you have chapter 6 and chapter 7 of the series of these documents? Chapter 6 "Eccentricity analysis", Chapter 7 "Effect of demagnetization on permanent magnets". If you have them, could you share them with me? These documents will serve as a reference for a research project that I am developing.
Thank you very much

Ramón

Pradeep Shankar_22370

Hi Mohammed Elamin,

Whether the limitation on this macro got removed?
I tried in 2022 and facing the same issue.

Thanks

Mohammed Elamin_22169

Pradeep Shankar_22370 said:

Hi Mohammed Elamin,

Whether the limitation on this macro got removed?
I tried in 2022 and facing the same issue.

Thanks

Let me check if the limitation still exists on the latest version Flux 2022.1. I will get back to you.   

Karun Avula

Pradeep Shankar_22370 said:

Hi Mohammed Elamin,

Whether the limitation on this macro got removed?
I tried in 2022 and facing the same issue.

Thanks

Hi Pradeep,

 

The limitation is there for 2022.1 version as well. We will check with dev team and get back to you.

 

Thanks and regards

Karun Teja

Hallay

Mohammed Elamin_22169 said:

Hi Pradeep, 

Do you mean the machine has a total of 5 poles or 5 poles pairs? It is uncommon to have odd number of poles on electric machine. What you need to enter on this macro is the number of pole pair represented on the geometry of the model (for example if you modeling 1 pole in the model you would use 0.5). 

Otherwise, you can check the attached document which explain the procedure/steps you need to compute dq inductances. 

Thanks,  

Hi Mohammed Elamin

Do you have below Flux file?

If you have, can you share it?

 

thank you

Mohammed Elamin_22169

Hallay said:

Hi Mohammed Elamin

Do you have below Flux file?

If you have, can you share it?

 

thank you

Hi Hallay, 

I attached the file here.

Thanks,  

Hallay

Mohammed Elamin_22169 said:

Hi Hallay, 

I attached the file here.

Thanks,  

Thanks a lot.