Defining the Rotor Data for a Switched Reluctance Motor

The rotor core channels the flux generated by stator windings and provides shaft torque. The rotor consists of copper bars in which current is induced by the magnetic fields produced by the stator windings. Use the Rotor Data Properties window to define the air gaps, rotor dimensions, and type of steel used in the rotor core. In the Project Manager tree, double-click Machine > Rotor to define the rotor.

To define general rotor data:

  1. To open the Rotor Data Properties window, double-click the Machine > Rotor entry in the Project Manager tree on the desktop. (You can also enter values in the Properties section of the desktop without opening a separate window.)
  2. Enter the outer diameter of the rotor in the Outer Diameter field.
  3. Enter the inner diameter of the rotor in the Inner Diameter field.
  4. Enter the length of the rotor core in the Length field.
  5. Select a Steel Type for the rotor core:
    1. Click the button for Steel Type.
      The Select Definition window appears.
    2. Select a steel type from the list, or define a new steel type.
    3. Click OK to close the Select Definition window and return to the Properties window.
  6. Enter the effective magnetic length of the core in the Stacking Factor field. This value ranges from 0 to 1, and is defined as the total length minus the total lamination insulation, divided by the total length.
  7. Enter the number of poles the rotor core contains in the Number of Poles field.
  8. Enter the ratio of the actual pole angle in relation to the maximum possible pole angle in the Embrace field. The value ranges from 0 to 1.
  9. Enter the thickness of the rotor yoke in the Yoke Thickness field.
  10. Click OK to close the Properties window.