Unified theory of torque production in AC, DC and reluctance motors
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 149-156 vol.1
- https://doi.org/10.1109/ias.1994.345485
Abstract
This paper uses the flux-MMF diagram to compare and contrast the torque production mechanism in seven common types of electric motor. The flux-MMF diagram is a generalized version of the flux-linkage versus current (/spl psi/-i) diagram for switched-reluctance motors. It is illustrated for switched-reluctance, synchronous-reluctance, induction, brushless AC, brushless DC, interior PM and DC commutator motors. The calculated flux-MMF diagrams for motors with the same electromagnetic volume, airgap, slotfill and total copper loss are shown and are used to compare the low-speed torque and torque ripple performance. The motor designs used were reasonably optimized using a combination of commercially available motor CAD packages and finite-element analysis.Keywords
This publication has 3 references indexed in Scilit:
- Interactive computer aided design of permanent magnet DC motorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Maximising the saliency ratio of the synchronous reluctance motorIEE Proceedings B Electric Power Applications, 1993
- New technique for reducing cogging torque in a class of brushless DC motorsIEE Proceedings B Electric Power Applications, 1992