Abstract
The use of finite-element (FE) analysis as a tool for optimising the design of a new form of permanent-magnet electrical machine is described. In order to reduce unwanted torque and generated voltage pulsations, the rotor is divided into a number of separate sections that have both axial separation and different radial positions. FE analysis is employed to optimise: (i) spacer width between the rotor sections, and (ii) radial positioning of sections, in order to give minimum torque and voltage pulsation. In comparison with a single-section rotor, it was found that a 3-section rotor gave an 89% reduction in peak-to-peak torque pulsation. Where possible, the accuracy of the FE method was confirmed by comparison with experimental measurements.
Original language | English |
---|---|
Pages (from-to) | 2117-2119 |
Number of pages | 3 |
Journal | IEEE Transactions on Magnetics |
Volume | 33 |
Issue number | 2 PART 2 |
DOIs | |
State | Published - 1997 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering