Analysis and optimization of coaxial magnetic gears
| Autor: | G. Gentile, N. Rotondale, A. Ometto, A. Rotondale |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Engineering business.industry 020208 electrical & electronic engineering permanent magnets Electrical engineering 02 engineering and technology Mechanics Permeance coaxial gears cogging torque 01 natural sciences Magnetic flux Ferromagnetism Magnetomotive force Magnet 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Torque Torque ripple Coaxial business |
| Zdroj: | 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM). |
| DOI: | 10.1109/speedam.2016.7525832 |
| Popis: | Coaxial magnetic gears with permanent magnets have a very simple structure and performance comparable to that of mechanical gears. The paper describes an analytical simplified approach for the analysis and design procedure. The mathematical model is one-dimensional: only the variation of electromagnetic quantities as function of angular position is considered and the permanent magnets are modeled by means of constant currents located at their edges. The resulting magnetomotive force generated by the two rotors is modulated by the distribution of the variable permeance due to the stationary ferromagnetic pole-pieces. The influence of the ratio between the width of the magnet and the pole pitch on the air-gap flux density is also considered. The analytical results are verified by means of a FEM considering the power losses and the torque ripple in order to obtain minimum volumes of the magnets and high torque densities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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