Switched reluctance motor

The stator and rotor cores both have salient poles; that of the stator carries concentrated windings, but the rotor has neither windings nor permanent magnets. This operates as a brushless motor. The simplest structure that takes advantage of the feature that enables high-speed operation is a two-phase winding, as shown in photo (a), where the rotor has only two salient poles.
As seen in fig. (c). The primary use of the SR motor is in heavy-duty industrial electric vehicles.