The interaction between the eddy currents induced in the solid cylindrical rotor steel structure and the revolving field of the airgap produces the electrodynamic torque. The polyphase induction machine with solid-iron rotor offers advantages in ease of manufacture, in high torque per ampere at standstill, in withstanding high rotational stresses, and in operating in unusual environments. It is the purpose of this paper to present an approximate three-dimensional nonlinear numerical analysis of the solid-rotor induction motor for finding the three-dimensional current-density distribution in the solid rotor, in order to calculate the performance characteristics, based on finite-difference iterative techniques.
eddy currents, solid rotor induction motors, current density distribution, airgap, electrodynamic torque, polyphase induction machines, three dimensional nonlinear numerical analysis, finite difference iterative techniques
Numerical analysis, Finite differences
Electrical and Computer Engineering
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Sarma, Mulukutla S., "Current-density distribution in solid-rotor induction motor" (1979). Electrical and Computer Engineering Faculty Publications. Paper 9.
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