The transformation of energy through the magnetic field

This work describes a wide spectrum of issues related to the transformation of energy through the magnetic field, in particular, the work on modeling, design optimization and measurement verification of magnetic gears built at the Department of Drive Automation and Robotics at the Opole University of Technology. The introduction presents a history of magnetic gears, the principle of operation and the most important features of these converters. A significant part of the work was devoted to the presentation of the state of the art, describing the currently existing designs of magnetic gears and their classifications in relation to the commonly used mechanical transmissions. In the further part of the work, the essential characteristics and parameters of the coaxial magnetic gear are presented and discussed, also the prototype, test stand, calculation results and measurement verification are presented. Then, the influence of the design parameters of the gears was analyzed in terms of increasing the value of the magnetic torque. Discrete and physical models of magnetic gears with radial flux and axial flux, with integer and fractional ratios, are also discussed. There are also described hybrid electromagnetic transducers with a built-in magnetic gear, which are becoming more and more popular nowadays.