Development of the Two Pole Type Shaded Pole Self-Bearing Motor

Abstract:

In order to reduce the size and complexity of the driving circuit of the self-bearing motor, this paper proposes a magnetically levitated shaded pole induction motor. The rotor is still supported by magnetic force, but the motor has a very simple structure because magnetic levitation and rotation can be achieved with only one amplifier. The suspension force and rotational torque have been analyzed by FEM magnetic field analysis. A simple experimental setup using the rotor of a commercial shaded pole induction motor was designed and fabricated. Although it did not succeed in levitation control, the rotation control was successful in the situation where perpendicular and horizontal movement of the rotor were restricted.

• Periodical: Materials Science Forum (Volume 856)
• Pages: 196-201
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.856.196
• Online since: May 2016
• Authors: Nobuyuki Kurita*, Takeo Ishikawa, Genri Suzuki
• Keywords: Magnetic Suspension, Magnetically Levitated Motor, Self-Bearing Motor, Shaded Pole Motor, Single Drive

References

[1] Yohji Okada, Kenzo Nonami, Research Trends on Magnetic Bearings, JSME International Journal, Series C, Vol. 46, No. 2 (2003), pp.341-342.

[2] Akira Chiba, Tadashi Fukao, et al., Magnetic Bearings and Bearingless Drives, Newnes (2005).

[3] Gerhard Schweitzer, Eric H. Maslen, et al., Magnetic Bearings: Theory, Design, and Application to Rotating Machinery, Springer (2009).

DOI: 10.1007/978-3-642-00497-1

[4] Reto Schoeb, Natale Barletta, Principle and application of a bearingless slice motor, JSME International Journal Serise C, Vol. 40, No. 4 (1997), pp.593-598.

DOI: 10.1299/jsmec.40.593

[5] Yohji Okada, Takuro Jinbu, Naoto Yamashiro, Kouji Sagawa, Lorentz Type Self-Bearing Motor using Halbach Magnets, Proceegings. of Tenth International Symposium on Magnetic Bearings (2006), pp.1-6.

[6] Satoshi Ueno, Yohji Okada, Characteristics and Control of a Bidirectional Axial Gap Combined Motor-Bearing, IEEE ASME Transactions on Mechatronics, Vol. 5, No. 3 (2000), pp.310-318.

DOI: 10.1109/3516.868923

[7] Junichi Asama, Yuki Hamasaki, Takaaki Oiwa, Akira Chiba: Proposal and Analysis of a Novel Single-Drive Bearingless Motor, IEEE Transactions on Industrial Electronics, Vol. 60, No. 1 (2013).

DOI: 10.1109/tie.2012.2183840

[8] Takashi Matsubara, Yoshiyuki Ishihara, at el., Magnetic Field Analysis Using All Unkown Secondary Current Quantities in Shaded-Pole Type Induction Motor, Transaction of IEEJ IAS 114(9), pp.849-84, (1994).

DOI: 10.1541/ieejias.114.849

[9] Vasilija Sarac, Different Approaches of Numerical Analysis of Electromagnetic Phenomena in Shaded Pole Motor with Application of Finite Elements Method, The proc. of EMTS2010, pp.93-96, (2010).

DOI: 10.1109/ursi-emts.2010.5637365

[10] Grigore A. Cividjian, Optimal Shading Coil Cross-section for Minimal Ripple Factor of AC Electromagnet Attracting Force, The proc. of 18th SIELA, pp.1-4, (2014).

DOI: 10.1109/siela.2014.6871846

[11] Nobuyuki Kurita, Takeo ishikawa, Genri Suzuki, Proposal of a magnetically levitated shaded pole induction motor, The proc. of 12th MoViC, Paper No. 1D36.

DOI: 10.1299/mej.14-00533