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In this paper, a novel variable-mode partitioned stator switched flux memory machine (PS-SFMM) with spoke-type low coercive force (LCF) permanent magnets (PMs) is developed. Due to the changeable magnetization level and polarity of LCF PMs, the PM pole number within inner stator can be purposely varied to either 12 or 6. Thus, this pole-changing concept enables PS-SFMM to behave similarly as 12-pole...
This paper proposes a new pole-changing memory machine (PCMM), which tactfully incorporates fractional pole-slot combination and pole-changing with memory machine. By doubling the slot number and coil span of fractional slot concentrated winding (FSCW), the machine having 9 slots 8/4 pole (9s-8/4p) combination can be changed into the one having 18 slots 8/4 pole (18s-8/4p) with 2 pitches. The electromagnetic...
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