Title :
A simple method to improve the sinusoidal static characteristics of doubly- salient PM machine for brushless AC operation
Author :
Cheng, Ming ; Hua, Wei ; Zhu, X.Y. ; Zhao, W.X. ; Jia, H.Y.
Author_Institution :
Southeast Univ., Nanjing
Abstract :
This paper investigates a simple method for a doubly-salient permanent magnet motor to improve the static characteristics to be more sinusoidal, including the back-EMF and the phase inductances waveforms, as well as less cogging torque for brushless AC operation. The optimal skewing angle of the rotor is evaluated by finite element analysis and validated by experimental results. The vector control of the DSPM motor, as an example of AC operation, is implemented. The proposed method can be applicable for other brushless PM machines having magnets in stator.
Keywords :
brushless machines; finite element analysis; permanent magnet motors; back-EMF; brushless AC operation; cogging torque; doubly salient permanent magnet motor; finite element analysis; phase inductances waveform; sinusoidal static characteristic; Brushless DC motors; DC motors; Equations; Finite element methods; Forging; Inductance; Permanent magnet motors; Rotors; Stators; Torque;
Conference_Titel :
Electrical Machines and Systems, 2007. ICEMS. International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-89-86510-07-2
Electronic_ISBN :
978-89-86510-07-2
