Modeling and Characteristics of an Axial-Gap Self-Bearing Motor
Main Article Content
Abstract
Axial-gap self bearing motor (AGBM) is a functional combination of axial magnetic bearing and axial flux motor. It means the AGBM can generate rotation and translation with only three-phase windings. The paper will introduce about the characteristics of an AGBM. First the mathematical model of the AGBM is developed in rotor field-oriented coordinate. Then the axial force and the motoring torque are analyzed theoretically to confirm its abilities. In order to evaluate the rightness of the proposed theory, a single stator AGBM has been made and tested. The experimental results confirm that the levitation force is propotional to direct axis current (isd) and the rotary torque is propotional to quadrature axis current (isq).
Keywords
Axial-Gap Motor, Axial Flux Motor, Self-Bearing Motor, Axial Magnetic Bearing
Article Details
References
[1] Dussaux M (1990) The industrial application of the active magnetic bearing technology. Proc. of 2nd Int. Sym. on Magnetic Bearings, Tokyo, pp. 33-38
[2] Chiba A, Deido T, Fukao T and Rahman MA (1994) An analysis of bearingless AC motors. IEEE Trans. Energy Conversion, vol. 9, pp. 61-67
[3] Okada Y, Dejima K and Ohishi T (1995) Analysis and comparison of PM synchronous motor and induction motor type magnetic bearing. IEEE Trans. Industry Applications, vol. 32, pp. 1047-1053
[4] Hijikata K, Kobayashi S, Takemoto M, Tanaka Y, Chiba A and Fukao T (2008) Basic Characteristics of an Active Thrust Magnetic Bearing With a Cylindrical Rotor Core. IEEE Transactions on Magnetics, Vol. 44, No. 11, pp. 4167-4170
[5] Hijikata K, Takemoto M, Ogasawara S. Chiba A, Fukao T (2009) Behavior of a Novel Thrust Magnetic Bearing With a Cylindrical Rotor on High Speed Rotation. IEEE Transactions on Magnetics, Vol. 45, No. 10. pp. 4617-4620
[6] Aydin M, Huang S, Lipo TA (2006) Torque quality and comparison of internal and external rotor axial flux surface-magnet disc machines. IEEE Trans. on Ind. Electronics, Vol. 53, No. 3, pp. 822-830
[7] Marignetti F, Colli V D. Coia Y (2008) Design of Axial Flux PM Synchronous Machines Through 3-D Coupled Electromagnetic Thermal and Fluid-Dynamical Finite-Element Analysis. IEEE Trans. on Industrial Electronics. Vol. 55, No. 10. pp. 3591-3601.
[8] Okada Y. Ueno S, Ohishi T, Yamane T and Tan C C (2003) Axial type self bearing motor for axial flow blood pump. Int. Society for Artificial Organs Vol. 27. pp. 887-891
[9] Ueno S and Okada Y (1999) Vector control of an induction type axial gap combined motor-bearing. Proc. of the IEEE Int. Conf. on Advanced Intelligent Mechatronics, Atlanta, USA, pp. 794-799.
[10] Ueno S and Okada Y (2000) Characteristics and control of a bidirectional axial gap combined motor-bearing. IEEE Transactions on Mechatronics, Vol. 5. No. 3, pp. 310-318.
[11] Dich NQ and Ueno S (2008) A study on axial gap self bearing motor drives. Proc. of the Int. Symposium on Micro/Nano system technology. Vietnam
[12] Dich N Q and Ueno S (2008) Analysis and Control of Non-Salient Permanent Magnet Axial-Gap Self-Bearing Motor. IEEE Transactions on Industrial Electronics, Vol. 58, No. 7
[13] Fitzgerald A E. Kingsley JC and Uman SD (1992) Electric Machinery. 5th edition, McGraw-Hill, New York
[14] Chiba A, et. al. Magnetic Bearings and Bearingless Drives, 1st edition, Elsevier, Great Britain, 2005
[15] Quang NP, Dittrich JA (2008) Vector Control of Three-Phase AC Machines System Development in the Practice. Springer Berlin Heidelberg
[2] Chiba A, Deido T, Fukao T and Rahman MA (1994) An analysis of bearingless AC motors. IEEE Trans. Energy Conversion, vol. 9, pp. 61-67
[3] Okada Y, Dejima K and Ohishi T (1995) Analysis and comparison of PM synchronous motor and induction motor type magnetic bearing. IEEE Trans. Industry Applications, vol. 32, pp. 1047-1053
[4] Hijikata K, Kobayashi S, Takemoto M, Tanaka Y, Chiba A and Fukao T (2008) Basic Characteristics of an Active Thrust Magnetic Bearing With a Cylindrical Rotor Core. IEEE Transactions on Magnetics, Vol. 44, No. 11, pp. 4167-4170
[5] Hijikata K, Takemoto M, Ogasawara S. Chiba A, Fukao T (2009) Behavior of a Novel Thrust Magnetic Bearing With a Cylindrical Rotor on High Speed Rotation. IEEE Transactions on Magnetics, Vol. 45, No. 10. pp. 4617-4620
[6] Aydin M, Huang S, Lipo TA (2006) Torque quality and comparison of internal and external rotor axial flux surface-magnet disc machines. IEEE Trans. on Ind. Electronics, Vol. 53, No. 3, pp. 822-830
[7] Marignetti F, Colli V D. Coia Y (2008) Design of Axial Flux PM Synchronous Machines Through 3-D Coupled Electromagnetic Thermal and Fluid-Dynamical Finite-Element Analysis. IEEE Trans. on Industrial Electronics. Vol. 55, No. 10. pp. 3591-3601.
[8] Okada Y. Ueno S, Ohishi T, Yamane T and Tan C C (2003) Axial type self bearing motor for axial flow blood pump. Int. Society for Artificial Organs Vol. 27. pp. 887-891
[9] Ueno S and Okada Y (1999) Vector control of an induction type axial gap combined motor-bearing. Proc. of the IEEE Int. Conf. on Advanced Intelligent Mechatronics, Atlanta, USA, pp. 794-799.
[10] Ueno S and Okada Y (2000) Characteristics and control of a bidirectional axial gap combined motor-bearing. IEEE Transactions on Mechatronics, Vol. 5. No. 3, pp. 310-318.
[11] Dich NQ and Ueno S (2008) A study on axial gap self bearing motor drives. Proc. of the Int. Symposium on Micro/Nano system technology. Vietnam
[12] Dich N Q and Ueno S (2008) Analysis and Control of Non-Salient Permanent Magnet Axial-Gap Self-Bearing Motor. IEEE Transactions on Industrial Electronics, Vol. 58, No. 7
[13] Fitzgerald A E. Kingsley JC and Uman SD (1992) Electric Machinery. 5th edition, McGraw-Hill, New York
[14] Chiba A, et. al. Magnetic Bearings and Bearingless Drives, 1st edition, Elsevier, Great Britain, 2005
[15] Quang NP, Dittrich JA (2008) Vector Control of Three-Phase AC Machines System Development in the Practice. Springer Berlin Heidelberg