Feasibility Study of a BLDC Motor with Integrated Drive Circuit

A brushless DC motor with integrated drive circuit for air management system is presented. Using magnetic equivalent circuit model a basic design of the motor is determined, and specific configurations are inspected thanks to finite element analysis. In order to reduce an unbalanced magnetic force in an axial direction, induced forces between a stator core and a permanent magnet are calculated with respect to the relative positions of them. For the high efficiency, and high power density, BLDC motor and drive are developed. Also vibration mode and eccentricity of a rotor are considered at the rated and maximum rotational speed Through the experimental results, a validity of the simulated one is confirmed.

• Jun-Hyuk Choi
• Joon Sung Park
• Jung-Moo Seo
• In-Soung Jung

• blower
• BLDC
• inverter

[1] T.J.E. Miller, and Hendershot, Design of Brushless Permanent-Magnet
Motors, Magna Physics Publishing and Clarendon Press, Oxford, 1994.
[2] Richard Valentine, Motor Control Electronics Handbook, McGrow-Hill
Handbook, 1998.
[3] R. Krishnan, Electric Motor Drive, Prentice Hall, Inc, 2001.
[4] N. Kato and K. Kurozumi, "Hybrid power supply system composed of
photovoltaic and fuel-cell systems," in Proc. INTELEC-01, Oct. 2001, pp.
631-635.
[5] M. N. Eskander and T. F. El-Shatter, "Energy flow and management of a
hybrid wind/PV/fuel cell generation system," in Proc. IEEE PESC-02,
Jun. 2002, pp. 347-353
[6] J. Hur, S. B. Yoon, D. Y. Hwang and D. S. Hyun, "Analysis of PMLSM
using 3 dimensional equivalent magnetic circuit network method," IEEE
Trans on Mugnetics, vol 33, No. 5 pp. 4143-4145
[7] J. Shao, D. Nolan, M. Tessier, and D. Swanson, "A novel
microcontroller-based senserless brushless (BLDC) motor drive for
automotive fuel pumps," IEEE Trans. Ind. Appl. Vol, 39, No. 6,
pp.1734-1740, Nov./Dec. 2003.