Analysis of Characteristics of Permanent Magnet Synchronous Machines With Novel Topology of Fractional-Slot Concentrated Winding
Fractional slot concentrated winding (FSCW) is favored for its well-known advantages. In this paper, the slot phase diagram is introduced to design symmetrical winding system and by this way, a novel 10-pole, 12-slot FSCW arrangement is proposed. To analyze the MMF spatial harmonic characteristics of both the proposed and the conventional FSCW, slot vector superposition method is introduced and applied. And by applying the two FSCW arrangements for a 10-pole, 12-slot permanent magnet synchronous machine (PMSM), we simulated the effect of the different windings on the basic electromagnetic performance and the MMF harmonic loss of the machine with finite element analysis (FEA). The results are obtained and compared.