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Motor Control ICs Forum Discussions

MathanRaja
Level 4
Level 4
100 sign-ins 10 questions asked 25 replies posted

Hi,

while creating a motor parameter file. I am getting the below errors. Can you help with this?

Board: Eval IMM101T-046M

MathanRaja_0-1672899017058.pngMathanRaja_1-1672899085220.png

Thanks

Mathan

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1 Solution
Krupashankar
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 5 likes given

Hi @MathanRaja,

This error arises due to improper motor parameter configuration. 

Can you please refer to this document for measuring motor parameters: How to Measure Motor Parameters

We noticed that Ld and Lq values are 80mH and 33mH. Can you please make sure if the inductance values are correct?

Can you please share the motor datasheet this will help us to understand the issue better.

 

Thanks,

Krupashankar

 

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3 Replies
Krupashankar
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 5 likes given

Hi @MathanRaja,

This error arises due to improper motor parameter configuration. 

Can you please refer to this document for measuring motor parameters: How to Measure Motor Parameters

We noticed that Ld and Lq values are 80mH and 33mH. Can you please make sure if the inductance values are correct?

Can you please share the motor datasheet this will help us to understand the issue better.

 

Thanks,

Krupashankar

 

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MathanRaja
Level 4
Level 4
100 sign-ins 10 questions asked 25 replies posted

Hi Krupashankar,

This document is for the Motor Inductance measurement. But we need Ld & Lq.

How to calculate Ld & Lq?

Thanks

Mathan

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Krupashankar
Moderator
Moderator
Moderator
250 replies posted 100 solutions authored 5 likes given

Hi @MathanRaja,

Ld and Lq depends upon the construction of the motor. 

In the case of the SPM motor Per phase Inductance = Ld = Lq

In case of IPM motor we don't have a particular document please refer to motor datasheet  or motor manufacturer should be able to help .

 

Thanks,

Krupashankar

 

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