Rotor structure design of interior permanent magnet brushless motors for sensor-less control

Author

Ni, Ronggang ; Gao, Hongwei ; Chai, Feng ; Cheng, Shukang

Author_Institution

Dept. of Eelectrical Eng., Harbin Inst. of Technol., Harbin, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

4

Abstract

Based on the need for sensor-less control of interior permanent magnet (IPM) brushless motors, a computer-aided design method for phase inductance optimization is put forward. With this method, repeated manual design process is alleviated, and ideal phase inductance waves can be obtained which is beneficial to sensor-less control of IPM brushless motors. Besides, cogging torque is reduced and motor performance is improved. Transformation from an existing surface-mounted permanent magnet (SPM) brushless motor to IPM has been done to obtain an ideal phase inductance wave with the proposed method.

Keywords

CAD; optimisation; permanent magnet motors; rotors; sensorless machine control; torque motors; IPM brushless motors; cogging torque; computer-aided design; interior permanent magnet brushless motors; phase inductance optimization; phase inductance waves; repeated manual design; rotor structure; sensorless control; surface-mounted permanent magnet brushless motor; Brushless motors; Design automation; Forging; Harmonic analysis; Inductance; Optimization; Rotors; Cogging Torque; Interior Permanent Magnet Brushless Motor; Phase Inductance; Sensor-less Control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073815

Filename

6073815