Complete Analytical Solution of Electromagnetic Field Problem of High-Speed Spinning Ball
نویسندگان
چکیده
This material is posted here with permission of AIP. Such permission of AIP does not in any way imply AIP endorsement of any of ETH Zurich's products or services. Internal or personal use of this material is permitted. However, permission to reprint/ republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from AIP by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. A simple maximum power point tracking based control strategy applied to a variable speed squirrel cage induction generator Dynamic optimization of the tracking system for a pseudo-azimuthal photovoltaic platform J. Renewable Sustainable Energy 4, 053117 (2012) Control strategies of doubly fed induction generator-based wind turbine system with new rotor current protection topology J. Renewable Sustainable Energy 4, 043123 (2012) A high-temperature double-mode piezoelectric ultrasonic linear motor Appl. Note: Design of a novel rotating magnetic field device Rev. In this article, a small sphere spinning in a rotating magnetic field is analyzed in terms of the resulting magnetic flux density distribution and the current density distribution inside the ball. From these densities, the motor torque and the eddy current losses can be calculated. An analytical model is derived, and its results are compared to a 3D finite element analysis. The model gives insight into the torque and loss characteristics of a solid rotor induction machine setup, which aims at rotating the sphere beyond 25 Mrpm. V C 2012 American Institute of Physics.
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