Equivalent Circuit Modeling of Induction Motors Considering Stray Load Loss and Harmonic Torques Using Finite Element Method

• Published in: IEEE transactions on magnetics Vol. 47; no. 5; pp. 986 - 989
• Main Authors: Yamazaki, Katsumi, Suzuki, Akihiro, Ohto, Motomichi, Takakura, Teruyuki, Nakagawa, Satoshi
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.05.2011; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Cross-disciplinary physics: materials science; rheology; Equivalent circuits; Exact sciences and technology; Finite element methods; Harmonic analysis; Induction motors; Iron; Loss measurement; losses; Magnetism; Materials science; Other topics in materials science; Physics; Rotors; Torque; Finite element method; Induction motors; finite element methods; Induction machine; Modelling; losses; Magnetic properties; Equivalent circuits
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2010.2087375

A novel equivalent circuit of induction motors is investigated by the finite element method in order to take into account effects of stray load loss and harmonic torques. The characteristics of the motor obtained by the proposed and conventional circuits are compared with the measured results in order to confirm the validity and usefulness of the proposed circuit. It is revealed that the result of the proposed circuit is more accurate than the direct solution of the finite element method because the circuit takes into account the effect of the iron loss, which is neglected in the equations of the finite element method.