Discussion Forum

Hello everyone

I am working on understanding how to use the rotary machinery physics in the AC/DC module using the 2d generator in the model library. I have changed the rotors to just be iron and made the coils have different phases, using Imax=sqrt(2)*10 [A] and changing the current in the multi-turn coil domain to Imax*exp(i*0) for one phase, Imax*exp(i*(2*pi)/3) for second phase and Imax*exp(i*(4*pi)/3) for the third phase.

I then run the simulation but it does not work. If I change the coils to an ampere's law with cylindrical coordinates with a radial remenent magnetic field and run the simulation then the rotor turns and it works. But if I use the different phases it errors out saying it has done too many steps. It seems I cannot have a changing phase in the stator while the rotor is rotating, which is what I want to do.

Does anyone have any ideas as to how I can make the stator coils have 3-phases while the rotor, with no magnetic fields just iron, rotates inside the stator?

Thanks.
Stephen