Unbalanced magnetic forces in permanent magnet brushless machines with diametrically asymmetric phase windings

Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)

Volumn 2, Issue , 2005, Pages 1037-1043

  Ishak, D ^a   Zhu, Z Q ^a   Howe, D ^a  

^a UNIVERSITY OF SHEFFIELD   (United Kingdom)

Author keywords

Brushless machines; Magnetic field; Permanent magnet; Unbalanced magnetic force; Unbalanced magnetic pull

Indexed keywords

ELECTRIC WINDINGS; FINITE ELEMENT METHOD; LOADING;

BRUSHLESS MACHINES; MAGNETIC FIELD; UNBALANCED MAGNETIC FORCE; UNBALANCED MAGNETIC PULL;

PERMANENT MAGNETS;

EID: 33744550061     PISSN: 01972618     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/IAS.2005.1518484     Document Type: Conference Paper

References (11)

1. T.J.E. Miller, and J.R. Hendershot, "Design of brushless permanent magnet motors", Magna Physics Publishing & Clarendon Press, 1994.
2. J. Cros, and P. Viarouge, "Synthesis of high performance PM machines with concentrated windings," IEEE Trans. on Energy Conversion, vol. 17, no. 2, pp. 248-253, 2002.
3. F. Magnussen, and C. Sadarangani, "Winding factors and Joule losses of permanent magnet machines with concentrated windings," International Electric Machines and Drives Conference (IEMDC), Madison, USA, June 1-4, 2003, pp.333-339.
4. P. Salminen, M. Niemela, J. Pyrhonen, and J. Mantere, "Performance analysis of fractional slot wound PM motors for low speed applications," CDROM IEEE Industry Applications Conference, Seattle, 2-7 Oct. 2004, paper IAS28p2.
5. D. Ishak, Z.Q. Zhu and D. Howe, "Permanent magnet brushless machines with unequal tooth widths and similar slot and pole numbers," IEEE Trans. on Industry Applications, vol. 41, no.2, pp. 584-590, 2005.
6. C. Bi, Z.J. Liu, and T.S. Low, "Analysis of unbalanced magnetic pull in hard disk drive spindle motors using a hybrid model", IEEE Trans. on Magnetics, vol. 32, no. 5, September 1996, pp.4308-4310.
7. C. Bi, Z.J. Liu, and T.S. Low, "Effect of unbalanced magnetic pull in spindle motors", IEEE Trans. on Magnetics, vol. 33, no. 5, September 1997, pp.4080-4082.
8. G.H. Jang, and J.W. Yoon, "Torque and unbalanced magnetic force in a rotational unsymmetric brushless DC motors", IEEE Trans. on Magnetics, vol. 32, no. 5, September 1996, pp.5157-5159.
9. B. Ackermann, "Unbalanced magnetic pull in permanent magnet motors", Proc. International Conference on Electric Machines, ICEM'92, 15-17 September 1992, UK, pp.819-822.
10. J.P. Wang, and D.K. Lieu, "Magnetic lumped parameter modeling of rotor eccentricity in brushless permanent magnet motors, IEEE Trans. on Magnetics, vol.35, no.5, 1999, pp.4226-4231.
11. Z.Q. Zhu, D. Howe, and C.C. Chan, "Improved analytical model for predicting the magnetic field distribution in brushless permanent magnet machines", IEEE Trans. on Magnetics, vol. 38, no. 1, January 2002, pp.229-238.