Title :
The study of influence on the performance of PMSM with space between permanent magnet pieces
Author :
Xiaoyuan, Wang ; Huan, Zhang ; Wei, Zhou ; Ruzhen, Dou
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China
Abstract :
According to the problem of flux-weakening difficult in inner PMSM(IPMSM), the reason for the flux-weakening difficulties to adjust speed is presented in this paper. The advantages of the sectional permanent magnet in constant power field flux-weakening is discussed from increasing D-Axis inductance. A model based on the finite element analysis(FEA) is established. The structure of sectional permanent magnet is considered in the model. The influence on the performance of motor is analyzed with permanent magnet segment space. The constant-power field speed range can be improved by increasing the size of the segment space.
Keywords :
finite element analysis; inductance; magnetic flux; permanent magnet motors; synchronous motors; D-axis inductance; FEA; constant power field flux weakening; constant power field speed range; finite element analysis; inner PMSM; permanent magnet piece; permanent magnet segment space; permanent magnet synchronous motor; sectional permanent magnet; speed adjustment; Induction motors; Magnetic flux leakage; Permanent magnet motors; Permanent magnets; Synchronous motors; Torque; PMSM; electric vehicle; flux-weakening; sectional permanent magnet;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073888
