A Novel Method for Field Analysis, Design and Construction of a Lifting Electromagnet

Document Type : Original Article

Author

Faculty member/ِِDepartment of Electrical and Computer Engineering, Technical Faculty of Mohajer, Technical and Vocational University (TVU), Isfahan, Iran

Abstract

The magnetic crane is an example of industrial applications of magnetic absorption in which an electromagnet is used to create the necessary magnetic force for lifting and moving objects. There are various structures for the shape of electromagnet’s core, but studies show that the U_I structure with a symmetrical winding is the most appropriate one in terms of reducing the loss due to leakage flux and fringing effect. The purpose of this paper is presenting a novel method for field analysis and designing an electromagnet. Focusing on the leakage flux and fringing effect, and taking into consideration the nonlinear behavior of the B-H curve and saturation point of ferromagnetic core, a new magnetic equivalent circuit for the electromagnet is proposed. For numerical analysis and design of the electromagnet, the Matlab software and for simulation of its magnetic field and force, the ANSYS MAXWELL software has been used. To verify the accuracy of the presented method, the prototype of an electromagnet has been made, in accordance with the design parameters extracted from the proposed algorithm. The comparison between measurements and simulation results show that the error is less than 2%, which confirms the accuracy of the proposed method.  

Keywords

References

[1]     D. K. Cheng, “Filed and Wave Electromagnetics,” Chap. 6, Addison Wesley, 1983.
[2]     J. Cale, S. D. Sudhoff, and L.-Q. Tan, “Accurately Modeling EI Core Inductors Using a High-Fidelity Magnetic Equivalent Circuit Approach,” IEEE T. Magn., vol. 42, no. 1, pp. 40-46, Jan. 2006.
[3]     P. K. Biswas and S. Banerjee, “Ansys Simulation Based Comparative Study between Different Actuators and        Guide-ways used in DC Electromagnetic Suspension Systems,” INT. J. Elec. Eng.  Inf. (IJEEI), vol. 4, no. 2, pp. 217-230, July 2012.
[4]     S. Banerjee, P. K. Biswas, R. Bhaduri, and P. Sarkar, “A Comparative Study between Different Structures of Rail and Actuator Used in Electromagnetic Levitation Systems,” Proc. in 5th IET Intentional Conference on Power Electronics, Machines and Drives, PEMD 2010, UK, 19-21 April 2010.
[5]     P. K. Biswas and S. Bannerjee, “Analysis of U_I and U-U Type Rail and Actuator Used in Electromagnetic Levitation System Using FEM Software,” INT J. Emerg. Tech. Adv. Eng. (IJETAE), vol. 2, no. 5, May 2012.
[6]     Z. Hederic, D. Sostaric, and G. Horvat, “Numerical Calculation of Electromagnetic Forces in Magnetic Actuator for Use in Active Suspension System for Vehicles,” Technical Gazette, vol. 20, no. 1, pp. 73-77, 2013.
[7]     S. Hughes, “Lecture 10: Magnetic force, Magnetic fields, Ampere’s law,” Internet:
web.mit.edu/sahughes/www/8.022/lec13.pdf, Mar. 2005.
[8]     Sierzega, “Magnetism 2:  Magnetic Force Exerted by a Magnetic Field on a Current-Carrying Wire,” Internet: http://www.west-windsor-plainsboro.k12.nj.us/common/pages/DisplayFile.aspx?itemId=20299639.
[9]     Sierzega, “Magnetism 4: Magnetic Force Exerted by a Magnetic Field on a Single Moving Charged Particle,” Internet: https://nanopdf.com/download/magnetic-force-exerted-by-a-magnetic-field-on-a-single-moving_pdf.
[10]  S. D. Sudhoff, “Lecture 8: A Design Example - An Electromagnet,” Internet:
https://engineering.purdue.edu/~sudhoff/ee630/Lecture08.pdf.
[11]  S. Bidwell, “On the Lifting Power of Electromagnets and the Magnetisation of Iron,” Proc. Royal Society of London, vol. 40, pp. 486-496, Jun. 1886.
[12]  C. W. M. T. McLyman, “Transformer and Inductor Design Handbook,” Marcel Dekker, Inc., 3rd ed. 2004.
[13]  Y. Bakhvalov, V. Grechikhin, O. Kravchenko, and A. Yufanova, “Optimal Design of Shell-Type Electromagnets of XY-Coordinate Electric Actuator,” IX International Conference on Power Drives Systems (ICPDS), Oct. 2016.
[14]  L. Kolimas and P. Sul, “Computer Design of Electromagnets,” The 4th Electronic International Interdisciplinary Conference, 2015.
[15]  A. S. Balte, V. K. Kulloli, and S. Y. Gajjal, “Design and Fabrication of Electromagnetic Dynsmometer for          Micro-Power Measurement,” Int. J. Eng. Sci. & Res. Tech. (IJESRT), pp. 430-434, Feb. 2015.
[16]  J. Y. Choi, et al., “Design and Dynamic Analysis of Magnetically Levitated Electromagnets with                       Low-Resolution Position Sensor,” IEEE T. Magn., vol. 48, no. 11, pp. 4546-4549, Nov. 2012.
[17]  J. D. Wise, “Magnetic Devices II: Reluctance and Inductance,” Internet:
www.ece.rice.edu/~jdw/435/book/ch9.pdf, Aug. 9, 2011.
Applied Electromagnetics
Volume 7, Issue 1 - Serial Number 18
February 2019
Pages 99-107

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History

  • Receive Date: 20 October 2018
  • Revise Date: 23 April 2019
  • Accept Date: 02 June 2019

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