Can Motor Profiler be used with STEVAL-IPM20B at 400V DC bus?

[Leimen1007]

Hi,

I am using the following hardware setup:

• NUCLEO-G474RE

• X-NUCLEO-IHM09M2

• STEVAL-IPM20B

• DC bus: 400 V

• Motor rated current: about 5 Apeak

• STM32 Motor Control SDK / Motor Pilot 6.4.2

I have loaded the Motor Profiler firmware generated by Motor Control Workbench.

My question is:

Can I use the Profiler function in Motor Pilot 6.4.2 to automatically measure the motor parameters with this hardware configuration at a 400 V DC bus voltage?

My main concern is that the DC bus voltage is relatively high. I would like to confirm whether the Motor Profiler supports this voltage range with the STEVAL-IPM20B, or whether the profiling procedure should be performed at a lower DC bus voltage first.

Are there any recommended voltage/current limits or additional precautions when using Motor Profiler with STEVAL-IPM20B?

Thank you.

[FVan .1]

Leimen1007,

Currently I am also testing with steval-ipm20b in combination with nucleo F303RE. 325 VDC blds motor is rotating finally after reducing the max current. Profiling results are strange.

[Leimen1007]

Thanks for sharing your test result.

It is useful to know that you were able to run the motor with STEVAL-IPM20B at 325 VDC after reducing the maximum current.

Could you please provide a little more information about the strange profiling results?

For example:

Which parameters look incorrect: Rs, Ls/Ld/Lq, BEMF/Ke, inertia, etc.?
What maximum current did you finally use for profiling?
What are the motor rated voltage and rated current?
Did you perform the complete profiling procedure at 325 VDC?

My main concern is whether the Motor Profiler algorithm is reliable with such a high DC bus voltage, especially since my setup uses approximately 400 VDC.

I am wondering whether it would be better to perform the motor profiling at a much lower DC bus voltage, and then use the obtained motor parameters with the 400 V power stage.

Thanks.