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How to calculate INDUCTANCE COMPUTATION for 10 pole periodic machine.

User: "Pradeep Shankar_22370"
New Altair Community Member
Updated by 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

image

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

 

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    User: "Mohammed Elamin_22169"
    New Altair Community Member
    Updated by 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,  

    User: "Pradeep Shankar_22370"
    New Altair Community Member
    OP
    Updated by Pradeep Shankar_22370

    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

    User: "Mohammed Elamin_22169"
    New Altair Community Member
    Updated by Mohammed Elamin_22169

    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,  

    User: "Ramon Perez"
    Altair Community Member
    Updated by Ramon Perez

    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

    User: "Pradeep Shankar_22370"
    New Altair Community Member
    OP
    Updated by Pradeep Shankar_22370

    Hi Mohammed Elamin,

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

    Thanks

    User: "Mohammed Elamin_22169"
    New Altair Community Member
    Updated by Mohammed Elamin_22169

    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.   

    User: "Karun Avula"
    Altair Employee
    Updated by Karun Avula

    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

    User: "Hallay"
    Altair Community Member
    Updated by Hallay

    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

    image

    User: "Mohammed Elamin_22169"
    New Altair Community Member
    Updated by Mohammed Elamin_22169

    Hi Mohammed Elamin

    Do you have below Flux file?

    If you have, can you share it?

     

    thank you

    image

    Hi Hallay, 

    I attached the file here.

    Thanks,  

    User: "Hallay"
    Altair Community Member
    Updated by Hallay

    Hi Hallay, 

    I attached the file here.

    Thanks,  

    Thanks a lot.