Learning Forum

[anonymousdevilliers]

I have an issue with finding no-load current of the 5hp SynRM designed in ANSYS Maxwell, The results from transient analysis setup show very high rms stator currents of 350 A when the motor is voltage fed at 0 Nm of load torque in motion setup as shown in attached images, Can someone help me resolve this as i don't expect such high current is possible at no-load practically.

[Timos]

Hi, Please disable "Consider Mechanical Transient" and set the correct initial Position angle in Motion Setup so that the motor doesn't produce torque - no reluctance torque.

[anonymousdevilliers]

I tried disabling the mechanical transient but there's still no difference in the current magnitudes. Also how to know which inital angular postion is correct?

[Timos]

Hi, It is when the rotor's axis is perpendicular to the direction of the stator's magnetic field. You can create a parameter for the angle and then create parametric setup and vary the rotor initial ange to check how the torque is influenced.

[anonymousdevilliers]

I have tried varying intial rotor angle and found the rms current. It still shows very high values even after disabling the mechanical transient.