ORGANIZATION : 한국자동차공학회
JOURNAL :
YEAR : 2019.05
VOL :
PAGE : 1279-1282
In this paper, the advantages of the CFSM (Concentrated flux synchronous motor) using ferrite permanent magnet are introduced. Also, the direction of rotor design for improving torque density is presented. In addition, the CFSM using ferrite permanent magnet was designed and compared with the IPMSM (Interior permanent magnet synchronous motor) using Nd permanent magnet considering the same design specifications. First, the advantages of the CFSM are described by comparing the rotor shape of IPM and the rotor shape of CFSM. And then, the air gap flux density of CFSM was converted to mathematical modeling. The design prameters for improving the torque density are also summarized. Secondly, the tendency of air gap flux density according to pole number and rotor shape was confirmed. The design direction for increasing the torque density is presented and the design of the CFSM is carried out based on the design specifications. Finally, CFSM and IPMSM were compared by volume, weight and torque density.