Switched reluctance motor with DC assisted excitation

Author

Li, Yue ; Lloyd, Jerry D. ; Horst, Gary E.

Author_Institution

Adv. Motor Dev. Center, Emerson Electr. Co., St. Louis, MO, USA

Volume

2

fYear

1996

fDate

6-10 Oct 1996

Firstpage

801

Abstract

A new topology of switched reluctance motor (SRM) drives is proposed in this paper. Based on a similar concept of the d q theory for conventional sinusoidal electric machines, this SRM with DC assisted excitation (SRDC) uses auxiliary DC windings to achieve the built-in field excitation in SRM structures. Since the field in this SRDC motor is established by the DC winding excitation, a larger percentage of the armature current is used to produce torque rather than building the field, which makes the SRDC motor have 50% higher torque density than that of the conventional SRM drive without losing performance. The detailed modeling of this SRDC motor drive, power density, machine performance comparison against conventional SRM drive and the proof of the theory by the experimental study are given in the paper. The results of this study show great potential for this technology in multiple industrial applications

Keywords

exciters; finite element analysis; machine theory; machine windings; reluctance motor drives; torque; DC assisted excitation; SRM topology; armature current; auxiliary DC windings; built-in field excitation; d q theory; machine performance; switched reluctance motor drives; torque density; Commutation; Copper; DC motors; Energy conversion; Induction motors; Motor drives; Production; Reluctance motors; Strontium; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1996. Thirty-First IAS Annual Meeting, IAS '96., Conference Record of the 1996 IEEE

Conference_Location

San Diego, CA

ISSN

0197-2618

Print_ISBN

0-7803-3544-9

Type

conf

DOI

10.1109/IAS.1996.560176

Filename

560176