| Abstract |
An original analytical method to determine the 2D magnetic field in a rotating motor with a smooth stator,
and a slotted rotor is presented. The field is due to a coil with a current, placed in the air gap. Based on this
method, the 2D magnetic field in a permanent magnet (PM) motor can be determined. The method is based
on the complex conformal mapping theory. Using two steps, the given configuration of the rotating motor is
transformed in a simpler configuration, in which the magnetic field can be solved analytically. Knowing the
magnetic field in the motor, its main characteristics, such as torque, cogging torque, fluxes and back-emf can
be easily found. |
