STUDY OF A TOROID: CHARACTERIZATION AND SIMULATION OF THE EFFECTS OF SHORT-CIRCUITS ON LAMINATED CORES
Keywords:
Ferromagnetic Materials, Magnetic Hysteresis, Eddy Currents, Magnetic Circuits, Iron LossesAbstract
This article presents the modeling of a transformer with toroidal core having short-circuited loops around a fraction of the core's magnetic section. Equations for magnetic circuits are used associated with hysteresis and dynamic losses models and parameters obtained by experiments. Dynamic losses were considered through the use of classical equations involving eddy currents while the excess losses were modeled by Bertotti's model. Hysteresis was considered by the Inverse Jiles-Atherton model. Effects of short-circuited coils on B-H loci are shown by simulation and measurements.
References
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Jiles, D. C. e Atherton, D. L. Theory of Ferromagnetic Hysteresis. Journal of Magnetism and Magnetic Materials, v. 61, pp. 48-60, 1986.
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Beckley, P.; Layland, N.J.; Hopper, E.; Power, D. Impact of surface coating insulation on small motor performance. IEE Proc. Elect. Power Appl. v.145, 1998
Beckley, Philip. Electrical steels for rotating machines. IEE Power and Energy Series 37, Ed. Bell & Bain Ltd, Glasgow, 2002
Coombs, A.; Lindenmo, M.; Snell, D.; Power, D. Review of types, properties, advantages and latest developments in insulating coatings on nonoriented electrical steels. IEEE Trans. Mag. v.37, 2001.
Marion-Péra, M. C.; Kedous-Lebouc, A.; Cornut, B.; Brissonneau. P. Analysis and comparison of magnetic sheet insulation tests, JMMM, v. 133, pp396-398, 1994.
Marion-Péra, M. C. ; Waeckerlé, T. Electrical and Physical Characterization of SiFe Sheets Insulation, IEEE Trans. Magn. V. 30, Nov 1994.
Batistela, N. J.; Mendes, F. B. R.; Kuo-Peng, P.; Sadowski, N.; Bastos, J. P. A. A Strategy for Iron Losses Separation In: PIERS 2004, Pisa, 2004.
N. J. Batistela, N. Sadowski, R. Carlson, J. V. Leite. Caracterização magnética de lâminas de aço silício e evolução das perdas no ferro sob vários regimes de indução. Revista Controle & Automação da Sociedade Brasileira de Automática, vol.13, no. 2, Maio/Agosto de 2002, pp.156-164.
Sadowski, N.; Batistela, N. J.; Bastos, J.P.A.; Lajoie-Mazenc, M. An inverse Jiles-Atherton model to take account hysteresis in time stepping finite element calculations. 13th Compumag, v. IV, France, p. OH-1, 2001.
Leite, J.V.; Avila, S.L.; Batistela, N.J.; et al. Real coded genetic algorithm for Jiles-Atherton model parameters identification. IEEE Trans. Magn., v. 40, n. 2, pp. 888-891, 2004
Bertotti, G. General Properties of Power Losses in Soft Ferromagnetic Materials. IEEE Trans. Magn. V 24, n. 1, 1988.
Bertotti, G. Space-Time Correlation Properties of the Magnetization Process and Eddy Current Losses: Theory. J. Appl. Phys. v. 54, n. 9, p. 5293 – 5305, 1983.
Bertotti, G. Space-Time Correlation Properties of the Magnetization Process and Eddy Current Losses: Applications. I. Fine wall Spacing. J. Appl. Phys., v. 55, n. 12, p. 4339 – 4355, 1984.
Bertotti, G. Physical Interpretation of Eddy Current Losses in Ferromagnetic Materials. I. Theoretical considerations. J. Appl. Phys., v. 57, n. 6, p. 2110 – 2126, 1985.
EFCAD -- Electromagnetic Fields Computer Aided Design. Software. GRUCAD-UFSC, http://www.grucad.ufsc.br, 2006.
ABNT - Associação Brasileira de Normas Técnicas, Produtos Laminados Planos de Aço para Fins Elétricos. NBR- 5161, 1977.
National Instruments. LabVIEW. National Instruments Corporation. 2003.
Fiorillo, F.; Novikov, A. An Improved Approach to Power Losses in Magnetic Laminations under Nonsinusoidal Induction Waveform. IEEE Trans. Magn., v. 26, n. 5, pp. 2904 – 2910, 1990.
Jiles, D. C. e Atherton, D. L. Theory of Ferromagnetic Hysteresis. Journal of Magnetism and Magnetic Materials, v. 61, pp. 48-60, 1986.
D. Lederer, H. Igarashi, A. Kost, and T. Honma, On the parameter identification and application of the Jiles–Atherton hysteresis model for numerical modeling of measured characteristics- IEEE Trans. Magn., v. 35, pp. 1211-1214, 1999
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Published
2007-08-01
How to Cite
João S. D. Garcia, Marcelo S. Anjos, Nelson J. Batistela, Nelson Sadowsk, & João Pedro Assumpção Bastos. (2007). STUDY OF A TOROID: CHARACTERIZATION AND SIMULATION OF THE EFFECTS OF SHORT-CIRCUITS ON LAMINATED CORES. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 6(1), 189–206. Retrieved from http://www.jmoe.org/index.php/jmoe/article/view/208
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