New Cogging Torque Reduction Methods for Permanent Magnet Machine

International Research and Innovation Summit 2017

Bahrim, F.S.^1 ; Sulaiman, E.^1 ; Kumar, R.^1 ; Jusoh, L.I.^1

Research Center for Applied Electromagnetics, Universiti Tun Hussein Onn Malaysia (UTHM), Parit Raja, Johor, Batu Pahat

86400, Malaysia^1

关键词: 3D-finite element analysis;    Axial pole pairings;    Cogging torque reductions;    Dynamic performance;    Machine performance;    Noise and vibration;    Permanent Magnet Synchronous Motor;    Permanent-magnet machine;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/226/1/012127/pdf
DOI  :  10.1088/1757-899X/226/1/012127

来源: IOP

【 摘 要 】

Permanent magnet type motors (PMs) especially permanent magnet synchronous motor (PMSM) are expanding its limbs in industrial application system and widely used in various applications. The key features of this machine include high power and torque density, extending speed range, high efficiency, better dynamic performance and good flux-weakening capability. Nevertheless, high in cogging torque, which may cause noise and vibration, is one of the threat of the machine performance. Therefore, with the aid of 3-D finite element analysis (FEA) and simulation using JMAG Designer, this paper proposed new method for cogging torque reduction. Based on the simulation, methods of combining the skewing with radial pole pairing method and skewing with axial pole pairing method reduces the cogging torque effect up to 71.86% and 65.69% simultaneously.