Research on Characteristics of Cogging Torque of Permanent Magnet Synchronous Motor Based on Finite Element Method
This paper presents a method of reducing cogging torque of Permanent Magnet Synchronous Motor (PMSM) based on Finite Element Method (FEM).Cogging torque can be reduced by pole and slot number combination and the length of air gap reasonably.An investigation into the cogging torque in 4 pole,48 slot and 6 pole,54 slot interior-magnet machines with overlapping winding is described.The calculation results show that cogging torque can be reduced by nearly 50% by pole and slot number combination reasonably.Then influence of different length of air gap on cogging torque is also researched.Cogging torque can be weaken by increasing the length of air gap effectively,the smoothness of the motor running can be improved.
permanent magnet synchronous motor cogging torque length of air gap
Shenbo Yu Shen Cao Lei Li Fengyi Xiao
School of Mechanical Engineering,Shenyang University of Technology,Shenyang,P.R.China Dalian Huarui Heavy Industry Group CO.LTD.,Dalian,P.R.China
国际会议
济南
英文
37-40
2012-12-29（万方平台首次上网日期，不代表论文的发表时间）