Nonlinear varying-network magnetic circuit analysis of doubly salient permanent-magnet motors

Journal Article · Sat Jan 01 04:00:00 EST 2000 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)

DOI:https://doi.org/10.1109/20.822544· OSTI ID:20020853

Cheng, M; Chau, K T; Chan, C C; Zhou, E; Huang, X

During the past decade, switched reluctance (SR) motors have received much research attention. They offer the advantages of simple structure, fault tolerance, and mechanical robustness, leading to attractiveness for industrial and electrical vehicle (EV) applications. In this paper, a nonlinear varying-network magnetic circuit (VNMC) modeling method is developed for doubly salient permanent-magnet (DSPM) motors. The method is used to analyze the static characteristics of DSPM motors by specific permeance calculations, in which the interaction between the permanent-magnet field and the armature current field, as well as magnetic saturation, are taken into account. Two newly proposed DSPM motors (12/8-pole and 6/4-pole) are used as examples. There is good agreement between the results of the nonlinear VNMC modeling method and finite-element analysis. Moreover, the nonlinear VNMC method offers the advantage of calculating, effectively and efficiently, the static characteristics of DSPM motors having different dimensions, parameters, and conditions. Finally, the proposed method is verified by experimental testing of a 6/4-pole prototype.

• Research Organization: Univ. of Hong Kong (HK)
• OSTI ID: 20020853
• Journal Information: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers), Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers) Journal Issue: 1Pt2 Vol. 36; ISSN IEMGAQ; ISSN 0018-9464
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
33 ADVANCED PROPULSION SYSTEMS
COMPARATIVE EVALUATIONS
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
FINITE ELEMENT METHOD
MAGNETIC CIRCUITS
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
PERMANENT MAGNETS