Title :
Analysis of losses of permanent magnet synchronous motor with PWM supply
Author :
Ping Chen ; Renyuan Tang ; Wenming Tong ; Xueyan Han ; Jianguo Jia ; Xiaofeng Zhu
Author_Institution :
Nat. Eng. Res. Center for Rare Earth Permanent Magn. Machine, Shenyang Univ. of Technol., Shenyang, China
Abstract :
This paper investigates the additional losses introduced by PWM supply in surface mounted permanent magnet synchronous motor (PMSM). An analytical model is developed to discuss additional iron loss, and an analytical model of PM eddy current loss which according for eddy current reaction is also presented. Finite element method (FEM) are used to calculate the characteristic of additional losses distribution and the experiment results verify the conclusion. Both the FEM and experiment verified the relationship between the additional losses and PWM supply factors, such as modulation index, frequency-carrier ratio. The relationship between additional losses and current total harmonic distortion (THD) are studied by analytical analysis too.
Keywords :
finite element analysis; harmonic distortion; permanent magnet motors; synchronous motors; FEM; PWM supply factors; THD; analytical model; eddy current loss; finite element method; frequency-carrier ratio; iron loss; modulation index; permanent magnet synchronous motor; surface mounted PMSM; total harmonic distortion; Eddy currents; Finite element analysis; Frequency modulation; Harmonic analysis; Iron; Pulse width modulation;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013638
