Document Type : Research Paper
Authors
1 Department of Electromechanical Engineering, University of Technology-Iraqi.
2 Department of Electrical Engineering School of Engineering, University of Phayao, Phayao, Thailand,
3 Department of Electromechanical Engineering, University of Technology-Iraq.
Abstract
Permanent magnet (PM) machines have received numerous attentions, since they are distinguished by many desirable features including simple construction and high efficiency. However, high price of the permanent magnet material may be considered as the main problems of such machines. Hence, the demand of PM machine with high efficient PM materials used is increased. In this study a new configuration of PM linear machine with high efficient PM material utilization, named as V-shape interior PM linear machine is investigated. The mentioned machine has been compared to the conventional I-shape counterpart. In order to perform sensible comparison, I-shape and V-shape machines have been designed with identical main design specifications. It has been observed that the V-shape topology shows better PM material utilization. It should be noted that about 43% higher efficient PM used is obtained by the V-shape machine compared to the conventional I-shape corresponding. It should be noted that the V-shape machine has been designed with about 51.6% less total permanent magnet volume compared to I-shape machine. Moreover, the introduced machine offers less cogging force as well as thrust force ripple than that of the conventional machine.
Keywords
[2] G. W. Mclean, “Review of recent progress in linear motors,” in Proc. IEE- Electric Power Applications Conf., pp. 380-416, 1988.
[3] M. Y. Wang, L. Y. Li, and D. H. Pan, “Analytical modelling and design optimization of linear synchronous motor with stair-step-shaped magnetic poles for electromagnetic launch applications,” IEEE Trans. on Plasma Sci., vol. 40, no. 2, pp. 519–527, Feb. 2012.
[4] S. M. Kazraji, and M. B. sharifian, “Direct thrust force and flux control of a PM-linear synchronous motor using Fuzzy Sliding-Mode observer,” Power Engineering and Electrical Engineering, vol. 13, no. 1, pp. 1-9, Mar., 2015.
[5] D. Y. Chau, K.T. Cheng, Y. Fan, Y. Wang, Y. Hua, and Z. Wang, “Design and analysis of linear stator permanent magnet Vernier machines,” IEEE Trans. on Magnetics, vol. 47, no. 10, pp. 4219-4222, 2011.
[6] G. Stumberger, D. Zarko, M. T. Aydemir, and T. A. Lipo, “Design and comparison of linear synchronous motor and linear induction motor for electromagnetic aircraft launch system,” in proc. International Electric Machines and Drives Conference, pp. 494-500, 2003.
[7] 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 Trans. on Magnetic, vol. 47, no. 8, pp. 2134-2141, August, 2011.
[8] E. Carraro, N. Bianchi, S. Zhang, M. Koch, “Permanent magnet volume minimization of spoke type fractional slot synchronous motor,” IEEE Energy Conversion Congress and Exposition (ECCE), pp. 4180-4187, 2014.
[9] C. Bianchini, F. Immovilli, E. Lorenzani, A. Bellini, and M. Davoli, “Review of design solutions for internal permanent-magnet machines cogging torque reduction,” IEEE Trans. on Magnetics, vol. 48, no. 10, pp. 2685-2693, 2012.
[10] Z. S. Du and T. A. Lipo, “Permanent magnet material and pulsating torque minimization in spoke type interior PM machines,” IEEE Energy Conversion Congress and Exposition (ECCE), 2016.
[11] C. F. Wang, J. X. Shen, Y. Wang, L. L. Wang and M. J. Jin, “A new method for reduction of detent force in permanent magnet flux- switching linear motors,” IEEE Trans. on Magnetic, vol. 45, no. 6, pp.2843-2846, June, 2009.
)
