Manju Bhashini, R.R.Manju BhashiniRagavan, K.K.Ragavan2025-08-312025-08-312023-01-01[9798350334012]10.1109/I2CT57861.2023.101264272-s2.0-85161326973https://d8.irins.org/handle/IITG2025/26977Winding distribution plays a major role in deciding the space harmonics in the stator MMF. In this work, significance of winding layer on the MMF harmonics in surface-mounted permanent magnet synchronous motor (PMSM) with fractional slot concentrated winding is investigated. Initially a PMSM with just one subharmonic is considered. For this purpose, a widely preferred PMSM with 12 stator slots and 10 rotor poles is considered. A four-layer winding distribution is considered to minimize the subharmonics and an analytical method is proposed. With this method, the number of turns in the various coils of a phase are determined such that the subharmonic is minimized. This reduction of subharmonics in the MMF profile would lead to lowering the loss in the core and magnets. The torque ripple also gets reduced. With the proposed optimum winding layout, it is found that the desired reaction torque producing component is unaffected. Further, performance of the optimum winding layout is assessed with the aid of winding factor. Validity of the proposed analytical method is subsequently assessed for the PMSM that has two subharmonics (stator slots 18 and rotor poles 14). Results are validated through FE simulation. From the results presented, it is clear that using the proposed analytical method, the subharmonics in the MMF of PMSM can be minimized.falsefour-layer winding | fractional slot concentrated winding | permanent magnet synchronous motor | space harmonic | subharmonic | winding factorConference Paper20231cpConference Proceeding1