Synchronous Reluctance Motor And Drive Device For Rolling Stock

Abstract: A synchronous reluctance motor (1) comprises: a stator core (9) in which a plurality of slots (14) are formed; and a rotor core (11) configured in a cylindrical shape on the inner-surface side of the stator core (9). The rotor core (11) has a plurality of slits (15), the openings of which are divided by a center rib (18a). The slit spacing of the rotor core (11) is formed to be smaller than the slot spacing of the stator core (9). At least three layers of slit groups are formed in the rotor core (11), and at least two of the at least three layers of slit groups are provided with a side rib (18b). When viewing the plurality of slit groups from the q-axis side to the d-axis side, the average magnetic path width Wt2-3 on the q-axis side of the layer where the side rib (18b) is first provided is larger than the average magnetic path width Wt3-4 on the d-axis side of the layer where the side rib (18b) is first provided.

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