Low core loss rotating flux transformer
- 15 November 1988
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 64 (10) , 5376-5378
- https://doi.org/10.1063/1.342375
Abstract
A rotating magnetic induction at saturation generates no hysteresis losses. In addition, because domain walls are absent, there are no anomalous eddy current losses. Thus, only classical eddy current losses are present. In materials with high resistivity such as ferrites or materials fabricated into thin sheets such as amorphous metals, these classical losses are small. A transformer has been designed which utilizes this principle. It consists of a hollow toroidal core with toroidal windings wrapped outside the core and poloidal windings wrapped through the interior channel. When these windings are energized by currents 90 electrical degrees apart or, with suitable winding schemes, by three-phase currents, rotating flux is generated throughout the core volume.This publication has 2 references indexed in Scilit:
- The inclusion of hysteresis processes in a special class of electromagnetic finite element calculationsIEEE Transactions on Magnetics, 1982
- Calculation of the Energy Loss in Magnetic Sheet Materials Using a Domain ModelJournal of Applied Physics, 1958