Performance evaluation of fractional-slot tubular permanent magnet machines with low space harmonics

• Autorzy: Wang J.

Identyfikatory

DOI

10.1515/aee-2015-0049

• Języki publikacji: EN

Abstrakty

EN

This paper evaluates the performance of fractional-slot per pole winding configurations for tubular permanent magnet (PM) machines that can effectively eliminate the most undesirable space harmonics in a simple and cost-effective manner. The benefits of the proposed machine topology winding configurations are illustrated through comparison with 9-slot, 10-pole tubular PM machine developed for a free piston energy converter under the same specification and volumetric constraints. It has been shown that the proposed machine topology results in more than 7 times reduction in the eddy current loss in the mover magnets and supporting tube, and hence avoids potential problem of excessive mover temperature and risk of demagnetization.

Słowa kluczowe

EN

linear machines; permanent magnet machines

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2015
• Tom: Vol. 64, nr 4
• Strony: 655--668
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr., wz.

Twórcy

autor

Wang J.

• Department of Electronic and Electrical Engineering The University of Sheffield Mappin Street, Sheffield S1 3JD United Kingdom

Bibliografia

• [1] Wang J., Wang W., Atallah K., A Linear Permanent-Magnet Motor for Active Vehicle Suspension.IEEE Trans. on Vehicular Technology 60(1): 55-63 (2011).
• [2] Wang J., et al., Design and Experimental Verification of a Linear Permanent Magnet Generator for a Free-Piston Energy Converter. IEEE Trans. on Energy Conversion 22(2): 299-306 (2007).
• [3] Wang J., Howe D., Lin Z., Design Optimization of Short-Stroke Single-Phase Tubular Permanent- Magnet Motor for Refrigeration Applications. IEEE Trans. on Industrial Electronics 57(1): 327-334 (2010).
• [4] Galea M, et al. Considerations for the design of a tubular motor for an aerospace application. Proc. of Electrical Machines and Systems (ICEMS), 2011 International Conference on (2011).
• [5] Wang J., Wang W., Atallah K., Howe D., Demagnetization Assessment for 3-phase Tubular Brushless Permanent Magnet Machines. IEEE Trans. on Magnetics 44(9): 2195-2203(2008).
• [6] Wang J., An Electric Machine. UK Patent, 1221635.4, Filed on Nov. 30 (2012).
• [7] Wang J., Patel V., Wang, W., Fractional-slot Per Phase, Per Pole Permanent Magnet Machines with Low Space Harmonic Contents. IEEE Trans. Magnetics 50(1): 8200209 (2014).
• [8] Wang J., “Fractional-slot Tubular Permanent Magnet Machines with Low Space Harmonics”, Proc. of Linear Drives and Industry Applications (LDIA2015), Aachen, Germany July, 2015.
• [9] Wang J., Atallah K., Zhu Z. Q., Howe D., Modular 3-phase permanent magnet brushless machines for in-wheel applications. IEEE Trans. on Vehicular Technology 57(5): 2714-2720 (2008).
• [10] Wang J., Howe D., Tubular modular permanent magnet machine equipped with quasi-Halbach magnetized magnets - Parts I and II. IEEE Trans. Magnetics. 41(9): 2470-2489 (2005).