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Torque calculation of PMSM

Dear Support Team

I designed a PMSM in Flux and I performed some no-load analyzes like cogging torque and Back EMF calculation. Now I want to extract torque waveform by applying current source (instead of voltage source) and imposed speed. How can I do this? What circuit should be used? How is the optimal control angle calculated? Is any d-q transform required?

I would be grateful if you could help me with this, thank you.

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English

Flux

v2021.2

Accepted answers

Mohammed Elamin_22169

Hi Amina,

Please check the example " Brushless IPM motor " on the Flux supervisor and look at case 3 "Constant speed analysis". It shows how to set the circuit with current sources and perform the analysis to compute the torque and the power balance. you don't need any d-q transformation on this case as the current will provided directly against time. If you don't know the optimal control angle to use, I would suggest to run parametric analysis around the range you are expecting to find what is the best one to maximize the torque.

Thanks,

All comments

Mohammed Elamin_22169

Hi Amina,

Thanks,

Amina

Hi Amina,

Please check the example " Brushless IPM motor " on the Flux supervisor and look at case 3 "Constant speed analysis". It shows how to set the circuit with current sources and perform the analysis to compute the torque and the power balance. you don't need any d-q transformation on this case as the current will provided directly against time. If you don't know the optimal control angle to use, I would suggest to run parametric analysis around the range you are expecting to find what is the best one to maximize the torque.

Thanks,

Hi Mohammed Elamin,

This is what I needed, thank you for your assistance and kindness.

Regards,