chapter  1
26 Pages

Principle of Operation of the Switched Reluctance Motor

The switched reluctance motor (SRM) drives for industrial applications are of recent origin. This chapter provides a brief introduction to SRM and its principle of operation. It presents an SRM capable of linear motion is introduced and its principles of operation and many of its configurations. In extreme contrast to the operation of SRM under short-circuit fault, consider a permanent magnet synchronous motor with a single-phase, short-circuit fault condition. The rotary machine-based SRMs are further differentiated by the nature of the magnetic field path as to its direction with respect to the axial length of the machine. The axial field SRMs is ideal for applications where the total length may be constrained, such as in a ceiling fan or in a propulsion application. Short flux path SRMs have the advantage of lower core losses due to the fact that flux reversals do not occur in stator back iron in addition to having short flux paths.