Abstract
Core-loss prediction is an important issue in design and analysis of permanent-magnet (PM) motors. Because of the diverse structure, flux distribution, and rotational variation of flux, it is difficult to predict the core loss in a machine exactly. In this paper, a core-loss model for the PM motor is introduced in which flux variation loci in different parts of the motor are predicted by carrying out a finite-element transient analysis. Since the flux variation pattern is complicated, an improved equation based on the conventional three-term expression is used for core-loss calculation. The core-loss model is developed totally in ANSYS parametric design language as a parametric model and it can be used easily for different types of PM motors. Calculation and experiments on a high-speed PM motor have shown that the model can produce results that agree with the experimental ones.
Original language | English |
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Article number | 6136637 |
Pages (from-to) | 1023-1026 |
Number of pages | 4 |
Journal | IEEE Transactions on Magnetics |
Volume | 48 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2012 |
Externally published | Yes |
Keywords
- Core loss
- finite-element method (FEM)
- flux locus
- permanent-magnet (PM) motor