Controlling method for switched reluctance motor method and motor having a low peak current

摘要

The SR motor (1) includes a stator (3) having a plurality of salient poles (3a), windings (C) wound around the plurality of salient poles (3a) and generating magnetic fields in the plurality of salient poles (3a), and a rotor (2) having another plurality of salient poles (2a), a number of the salient poles of the rotor being determined depending upon a number of the salient poles of the stator. A supply mode for supplying power from a power supply to the windings (C), a reflux mode for setting both terminals (T1, T2) of the windings (C) to an identical potential, and a regenerative mode for recovering electromotive force generated in the windings (C) into the power supply are executed as the rotor (2) rotates. The reflux mode and the regenerative mode are preferably repeated in a period during which the inductance of the windings (C) is reduced as the rotor (2) rotates.