Determining the equivalent circuit parameters of canned solid-rotor induction motors

• Published in: IEEE transactions on magnetics Vol. 41; no. 7; pp. 2281 - 2286
• Main Authors: Ergene, L.T., Salon, S.J.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.07.2005; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Canned solid-rotor induction motor; Cans; Circuits; Cross-disciplinary physics: materials science; rheology; Eddy currents; equivalent circuit parameter; Equivalent circuits; Exact sciences and technology; Finite element methods; finite-element method (FEM); Frequency; Immune system; Induction motors; Magnetism; Materials science; Mathematical analysis; Mathematical models; Nonlinear equations; one-slot model; Other topics in materials science; Physics; Rotors; Solids; Stator windings; Finite element method; Induction motors; one- slot model; equivalent circuit parameter; Induction machine; Rotors; Canned solid-rotor induction motor; Modelling; Eddy currents; finite-element method (FEM); Magnetic properties; Equivalent circuits
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2005.845388

For designing canned solid-rotor induction motors, the conventional induction motor circuit is inadequate. Here we present an alternative equivalent circuit, one that reflects the eddy currents in all regions (cans and rotor body). The proposed model operates on a per-phase basis at a single frequency. We confirm the validity of the new equivalent circuit with numerical and analytical solutions. This analysis has shown that the classical equivalent circuit for conventional induction motors is not sufficient to obtain the circuit parameters for the canned solid rotor induction motors. We also consider certain assumptions that make the analytical approach simpler.