Loss Distribution Of Three-Phase Induction Motor And Bldc Motor According To Core Materials And Operating
IEEE TRANSACTIONS ON MAGNETICS(2009)
Abstract
This paper deals with the loss distribution of a three-phase induction motor (IM) and a BLDC motor considering operating point-of-core material based on the FEA and experiments. In order to increase motor efficiency, a high grade of core material can be used. However, sometimes it decreases or provides no improvement of efficiency. This is due to the fact that high-grade core materials generally have lower saturation flux density and core loss. Therefore, when operation of point-of-core materials is in a high-saturation region with low frequency, there could be no significant improvements or decrease of efficiency. The presented results give guidelines to selecting core materials to improve motor efficiency.
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Key words
Induction motors,magnetic materials,permanent magnet motors
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