Muhammed ASLAN, Ali Baran ÖZPOLAT, Cengiz İŞÇİ, Fatih EROĞLU, Ahmet Mete VURAL

DESIGN AND MODELLING OF INTERNAL PERMANENT MAGNET MOTOR

In this study, radial brushless motors with internal permanent magnet (IPM) is designed and modelled. These motor types can be fed by alternating current (AC) and direct current (DC) sources. It is called permanent magnet synchronous motor when it is fed with a AC voltage, and brushless direct current motors when it is fed it with a DC voltage. Later on, design parameters of an electric motor that produces a torque of approximately 35 Nm, powered by a 72 V DC source is determined. Then, mathematical modeling is implemented based on the determined design parameters of permanent magnet electric motors. IPM motor’s size, magnetic and thermal analyses are made by finite element analysis. Moreover, efficiency, torque and power of the designed IPM motor are calculated as the result of the analysis. Finally, it is revealed that the designed IPM motor has 24 slots and 8 poles which has an efficiency of 92 %.

Keywords:

Electric motors, Internal permanent magnet motors, Finite element analysis,

PDF

___

[1] F. L. Pope The Inventions of Thomas Davenport. Transactions of the American Institute of Electrical Engineers Jan. 1891; vol. VIII; no. 1; pp. 93-97.
[2] Chapman, Stephen J Electric Machinery Fundamentals. 1991.
[3] Yılmaz M. Limitations/capabilities of electric machine technologies and modeling approaches for electric motor design and analysis in plug-in electric vehicle applications. Renewable and Sustainable Energy Reviews, 2015; 52; 80–99.
[4] Fitzgerald, A E, Charles Kingsley, and Stephen D. Umans Electric Machinery. 2003.
[5] Z. Q. Zhu, D. Howe, E. Bolte and B. Ackermann Instantaneous magnetic field distribution in brushless permanent magnet DC motors. I. Open-circuit field. IEEE Transactions on Magnetics, Jan. 1993; vol. 29; no. 1; pp. 124-135.
[6] Z. Q. Zhu and D. Howe Analytical prediction of the cogging torque in radial-field permanent magnet brushless motors. IEEE Transactions on Magnetics March 1992; vol. 28; no. 2; pp. 1371-1374.
[7] Hanselman, Duane C. Brushless permanent-magnet motor design, 1994.