In EMD library, the source inputs of the sychrnous motor (for example, PMSM) are line-to-neutral voltages. In reality, if there are three power leads coming from the motor windings, the three phase source connected to the leads are line-to-line quantity. So I am wondering if it is possible to apply line-to-line voltage to the model.
In the EMD library, all 3 phase motor models take as input electric potential. Fom this we derive:
Now depending if the motor is star or delta connected, we have the following relation:
Line to line voltage = sqrt(3) * phase voltage (phase voltage in star is also called line to neutral voltage)
Line current = phase current
Line to line voltage = phase voltage
Line current = sqrt(3) * phase current
I would say it is up to you to provide the correct potential to your machine based on those relations.
Thanks for your explanation.
I fully understand the relationship which is applicable to sinusoidal case. However, when going to nonlinear case, I think the phase voltage might not be sinusoidal anymore even the line-to-line voltage is sinusoidal.