Dear All,

I have a question about back EMF of PMSM.

In the Plecs, how to calculate back EMF of PMSM?

I have back emf constant which measure by line to line peak voltage.

Best regards,

Dear All,

I have a question about back EMF of PMSM.

In the Plecs, how to calculate back EMF of PMSM?

I have back emf constant which measure by line to line peak voltage.

Best regards,

The conversion approach is noted at the very bottom of the PMSM component documentation, where KE is the peak-phase voltage, φM is the flux induced by the magnet, and p is the number of pole pairs.

KE = φM·p

Note that if your BEMF constant is line-to-line, opposed to the phase voltage, then you will have to add another scaling factor of sqrt(3) for sinusoidal BEMF.