Design and Electromagnetic Analysis of a Double-Sided Permanent Magnet Linear Synchronous Motor

Abstract:

The permanent magnet linear synchronous motor (PMLSM) has a good application prospect due to many significant advantages such as high speed, high precision, high thrust force density, simple structure, energy saving and reliable operation etc., so the research and development are of great importance. This paper mainly focuses on the key design points of a double-sided water-cooled PMLSM. According to the required thrust force, the design is given out including the basic structure parameters, winding connection methods and water cooling system. Based on the erected finite-element model, the performances such as back-EMF, thrust force, normal force, power factor and efficiency are predicted. By comparing with a single-sided PMLSM with the same specifications, it is proved that this double-sided PMLSM has lower thrust force ripple and higher thrust force density. Moreover, the net normal force of its mover is almost zero. Finally, the predicted back-EMF is verified by measurement.

• Periodical: Applied Mechanics and Materials (Volumes 416-417)
• Pages: 270-275
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.416-417.270
• Online since: September 2013
• Authors: Xin Min Zhang, Chuan Ying Cheng, Qin Fen Lu, Yun Yue Ye, Xiao Sheng Tao
• Keywords: Electromagnetic Analysis, Finite Element Method (FEM), Linear Motor Design

References

[1] Y.Y. Ye, Linear Motor Principles and Applications, Machinery Industry Press, (1999).

[2] R.Y. Tang, Theory and Design of Modern Permanent Magnet Motor, Machinery Industry Press, (2010).

[3] Z.Q. Zhu, D. Howe, Influence of design parameters on cogging torque in permanent magnet machines, IEEE Transactions on Magnetics, vol. 15, no. 4, pp.407-412, (2000).

DOI: 10.1109/60.900501

[4] B.Q. Kou, X.Z. Huang, H.X. Wu, L.Y. Li, Thrust and thermal characteristics of electromagnetic launcher based on permanent magnet linear synchronous motors, IEEE Transactions on Magnetics, vol. 45, no. 4, pp.358-362, (2009).

DOI: 10.1109/tmag.2008.2008883

[5] H. Wang, Z.J. Zhang, C.Y. Liu, Detent Force Analysis and Experiment for Permanent Magnet Linear Synchronous Motor, China Proceedings of the CSEE, vol. 30, no. 15, pp.58-63, (2010).

[6] W. Min, J.T. Chen, Z.Q. Zhu, Y. Zhu, M. Zhang, and G.H. Duan, Optimization and comparison of novel E-Core and C-Core linear switched flux PM machines, IEEE Transactions on Magnetics, vol. 47, no. 8, pp.2134-2141, Aug. (2011).

DOI: 10.1109/tmag.2011.2125977

[7] Q.F. Lu, C.Y. Cheng, X.M. Zhang, L.R. Huang, Z.L. Yang, Y. Y. Ye et al., Comparative investigation of single-sided and double-sided permanent magnet linear motor, IEEE conference on ICEMS, pp.1-5, (2012).

[8] Q.F. Lu, C.Y. Cheng, Y.Y. Ye, Y.T. Fang, Slot/Pole Number Combination Research of PM Linear Motors with Fractional Slots per Pole, Proceedings of the CSEE, vol. 32, no. 36, pp.68-74, (2012).

[9] Y.W. Zhu, S. Lee, Y. Cho, Topology structure selection of permanent magnet linear synchronous motor for ropeless elevator system, IEEE International Symposium on Industrial Electronics (ISIE), pp.1523-1528, (2010).

DOI: 10.1109/isie.2010.5637992

[10] K.K. Tan, S.N. Huang, T.H. Lee, Robust adaptive numerical compensation for friction and force ripple in permanent-magnet linear motors, IEEE Transactions on Magnetics, vol. 38, no. 1, pp.221-228, Jan. (2002).

DOI: 10.1109/20.990111