Progress In Electromagnetics Research B
ISSN: 1937-6472
Home | Search | Notification | Authors | Submission | PIERS Home | EM Academy
Home > Vol. 62 > pp. 277-288


By D. Mansson

Full Article PDF (228 KB)

In the paper presented here the optimization of Halbach arrays as storage media for mechanical potential energy is investigated with numerical simulations using FEMM and analytical calculations using the Maxwell stress tensor. Two opposing Halbach arrays form a ``magnetic spring'' and mechanical potential energy is stored when this structure is compressed. It is here seen that the wavelength of the magnetization in the material and the dimensions greatly in fluence the stored energy density. A clear region of maximum is identified which leads to important conclusions on how the material should be employed. The suggested approach for storing energy have advantages and approximately 250 kJ/m3 can be reached. The main drawback is the large prize of rare earth metals such as Neodymium.

D. Mansson, "On the Optimization of Halbach Arrays as Energy Storage Media," Progress In Electromagnetics Research B, Vol. 62, 277-288, 2015.

1. Ter-Gazarian, A. G., Energy Storage for Power Systems, 2nd Ed., The Institution of Engineering and Technology, London, 2011.

2. Huggins, R. A., Energy Storage, Springer Science+Business Media, New York, 2010.

3. Rosen, Rosen, M. A., Ed., Energy Storage, Nova Science Publishers Inc., Hauppauge, 2012.

4. Grijalva, S. and M. U. Tariq, "Prosumer-based smart grid architecture enables a flat, sustainable electricity industry," IEEE PES Innovative Smart Grid Technologies (ISGT), 1-6, 2011.

5. Zheng, J., D. W. Gao, and L. Li, "Smart meters in smart grid: An overview," IEEE Green Technologies Conference, 57-64, 2013.

6. Supermagnete, Available: http://www.supermagnete.de/eng/.

7. Mansson, D., "On the suitability of using Halbach arrays as potential energy storage media," Progress In Electromagnetics Research B, Vol. 58, 151-166, 2014.

8. Finite Element Method Magnetics, Available: http://www.femm.info/.

9. Meeker, D., Force on a taper plunger magnet, Available: http://www.femm.info/wiki/RotersExample.

10. Vizimag, Available at: http://www.softpedia.com/get/Science-CAD/Vizimag.shtml.

11. Mallinson, J. C., "One-sided fluxes --- A magnetic curiosity?," IEEE Trans. Magnetics, Vol. 9, 678-682, 1973.

12. Halbach, K., "Physical and optical properties of rare earth cobalt magnets," Nuclear Instruments and Methods in Physics Research, Vol. 187, 109-117, Aug. 1981.

13. Wolfram Demonstrations Projects, Available at: http://demonstrations.wolfram.com/FieldsOfMagnetArray/.

14. Griffiths, D. J., Introduction to Electrodynamics, 3rd Ed., Prentice-Hall Inc., Upper Saddle River, 1999.

15. Shute, H. A., J. C. Mallinson, D. T. Wilton, and D. J. Mapps, "One-sided fluxes in planar, cylindrical, and spherical magnetized structures," IEEE Trans. Magnetics, Vol. 36, No. 2, 440-451, Mar. 2000.

16. Lang, J. H., "A comparative analysis of torque production in Halbach and conventional surface-mounted permanent-magnet synchronous motors," IEEE Industry Applications Conference, Vol. 1, 657-663, Oct. 8-12, 1995.

17. McDonald, K. T., "Methods of calculating forces on rigid magnetic media," Physics Class. Ph., arXiv: physics/0312027, 2003.

18. WolframAlpha, Available at: http://www.wolframalpha.com/.

19. MATLAB Version R2012b, The MathWorks, Inc., Natick, Massachusetts, United States, 2012.

© Copyright 2010 EMW Publishing. All Rights Reserved