Title :
Method for optimize the air gap flux density of permanent magnet synchronous motor
Author :
Luo, Derong ; Cheng, Benquan ; Huang, Shoudao ; Gao, Jian
Author_Institution :
Coll. of Electr. & Inf. Eng., Hunan Univ., Changsha, China
Abstract :
This paper analyzed the no load air gap flux density waveform of surface mounted permanent magnet synchronous motor (PMSM) and then proposed a new method to improve the air gap flux density waveform. Multiple permanent magnets are adopted as a main pole for motor instead of a single one, and the mathematical model to eliminate the harmonics is derived. According to the mathematical model, a PMSM finite element simulation model is created, the FEA results show this method is useful to improve the flux density and reduce its high harmonic components.
Keywords :
air gaps; finite element analysis; permanent magnet motors; permanent magnets; synchronous motors; air gap flux density waveform; finite element simulation; mathematical model; multiple permanent magnets; permanent magnet synchronous motor; surface mounted; Core loss; Electromagnetic forces; Finite element methods; Fourier series; Magnetic analysis; Mathematical model; Optimization methods; Permanent magnet motors; Synchronous motors; Torque; FEA; PMSM; air gap flux density; harmonics;
Conference_Titel :
Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5177-7
Electronic_ISBN :
978-4-88686-067-5
DOI :
10.1109/ICEMS.2009.5382794
