Simulating axial flux synchronous machine

- January 6, 2025 at 2:02 am
  
  wonseiii99
  Subscriber
  
  I am analyzing an axial flux synchronous motor with a 10-pole, 12-slot configuration, applying three-phase AC current.
  The AC current is as follows.
  185*sin(2*pi*fre*time)
  185*sin(2*pi*fre*time-2*pi/3)
  185*sin(2*pi*fre*time-4*pi/3)
  However, even after running the simulation multiple times, I only get negative torque or torque values close to zero. Could this be due to an incorrect initial position? If so, how should I set the initial position? I’ve heard a lot about aligning it with the phase, but I’d like to know precisely which equations or methods I can use to achieve proper alignment.
  Any suggestions would be greatly appreciated.
- January 28, 2025 at 8:38 pm
  
  MirandaH
  Ansys Employee
  
  Here is a trick to find initial position: Simulate the no-load analysis in Maxwell with initial Position of MotionSetup is input as 0 deg and the Excitations Current is to 0A. After the analysis is complete, select from the menu, Maxwell2D/3D -> Results -> Create TransientReport -> Rectangular Plot Change X-axis to Position, and change Y-axis to Flux Linkage and press the New Report. Or change X-axis to Position, and change Y-axis to Induced Voltage and press the New Report. Use the X Marker to locate the point of minimum flux linkage of Phase A or to locate the zero point of induced voltage of Phase A. Input the initial position of Motion setup by searched X Marker.