A novel permanent magnet motor with doubly salient structure

Author

Liao, Yuefeng ; Liang, Feng ; Lip, Thomas A.

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

fYear

1992

fDate

4-9 Oct. 1992

Firstpage

308

Abstract

A new type of doubly salient machine is presented in which the field excitation is provided by a nonrotating permanent magnet (PM). This doubly salient PM (DSPM) motor is shown to be kindred to square waveform PM brushless DC motors. Linear and nonlinear analysis has been performed to investigate the characteristics of this new type of PM motors. A prototype DSPM motor has been designed, and a comparison has been made between this new type of motor and the induction motor. It is shown that, by fully exploiting modern high-energy PM material and the doubly salient structure, the DSPM motor can offer superior performance over existing motors in terms of efficiency, torque density, torque-to-current ratio, and torque-to-inertia ratio, while retaining a simple structure amenable to automatic manufacture.<>

Keywords

machine theory; permanent magnet motors; torque; doubly salient machine; efficiency; linear analysis; nonlinear analysis; permanent magnet motor; torque density; torque-to-current ratio; torque-to-inertia ratio; Brushless DC motors; Brushless motors; DC motors; Induction motors; Magnetic analysis; Performance analysis; Permanent magnet motors; Permanent magnets; Prototypes; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1992., Conference Record of the 1992 IEEE

Conference_Location

Houston, TX, USA

Print_ISBN

0-7803-0635-X

Type

conf

DOI

10.1109/IAS.1992.244279

Filename

244279