Design of A New Structure for Transmitter and Receiver Coils in Wireless Transmission Systems with low Sensitivity in

Document Type : Original Article

Authors

1 Electrical and Computer Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

2 Electrical and Computer Engineering Department, Babol Noshirvani University of Technology, Babol,Iran

Abstract

Power transmission from source to load via transmitter and receiver coils is one of the most important parts of a wireless power transmission system. Certainly, designing a proper structure for these coils can improve mutual inductance, coupling coefficient, efficiency and system performance. In this paper, a new coil structure with low sensitivity to misalignment and movement of coils in comparison to conventional structures is presented and studied. The mutual inductance and system efficiency have been improved through selecting a specific shape for the core of the coils and using a soft magnetic composite for core structure. The superiority of the proposed structure compared to conventional structures is proved by the results obtained using Flux software.

Keywords


[1]    N. Tesla, "Art of Transmitting Electrical Energy Through the Natural Mediums", U. S. Patent 787412; April 08, 1905.##
[2]    T. Honjo, T. Koyama, K. Umetani, and E. Hiraki, "Novel Receiving Coil Structure for Improving Efficiency and Power Transfer Capability of  Resonant Inductive Coupling Wireless Power Transfer", in Electrical Machines and Systems (ICEMS), 19th International Conference on IEEE, pp. 1-6, 2016.##
[3]    Z. Luo and X. Wei, "Analysis of Square and Circular Planar Spiral Coils in Wireless Power Transfer System for Electric Vehicles", IEEE Transactions on Industrial Electronics, vol. 65, no. 1, pp. 331-341, 2017.##
[4]    J. Shin et al., "Design and Implementation of Shaped Magnetic-Resonance-Based Wireless Power Transfer System for Roadway-Powered Moving Electric Vehicles", IEEE Transactions on Industrial electronics, vol. 61, no. 3, pp. 1179 -1192, 2014.##
[5]    T. Honjo, T. Koyama, K. Umetani, and E. Hiraki, "Novel Receiving Coil Structure for Improving Efficiency and Power Transfer Capability of  Resonant Inductive Coupling Wireless Power Transfer", in 2016 19th International Conference on Electrical Machines and Systems (ICEMS IEEE), pp. 1-6, 2016.##
[6]    B. H. Choi, V. X. Thai, E. S. Lee, J. H. Kim, and C. T. Rim, "Dipole-Coil-Based Wide-Range Inductive Power Transfer Systems for Wireless Sensors," IEEE Transactions on Industrial Electronics, vol. 63, no. 5, pp. 3158-3167, 2016.##
[7]    K. J. H. Shokrollahi, "Review Soft Magnetic Composite Materials (SMCs)", Journal of Materials Processing Technology, vol. 189, pp. 1-12, 2007.##
[8]    P. H. Ola Anderson, "Advances in Soft Magnetic Composites – Materials and Applications," Proceedings of the 2009 International Conference on Powder Metallurgy & Particulate Materials, Las Vegas, USA, no. Füssen, Germany, 2009.##
[9]    PM in magnet applications, http:// www.empa.com.foresight/magent.htm, accessed on May 20, 2002.##
[10]  J. M. B. a. C.Gelinas, "Imminent Changes in Soft Magnetic Devices," Advances in Powder Metallurgy and Particulate Materials, 1998.##
[11]  M. K. Kazimierczuk and J. Jozwik, "Resonant DC/DC Converter with Class-E Inverter and Class-E Rectifier," IEEE Transactions on Industrial Electronics, vol. 36, no. 4, pp. 468-478, 1989.##
[12]   H. Sekiya, T. Negishi, T. Suetsugu, and T. Yahagi, "Operation of Class DE Amplifier Outside Optimum Condition," in Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on, 2006.##
[13]   B. Panda and A. Sahoo, "Study of Soft Switching Boost Converter Using An Auxiliary Resonant Circuit," 2012.##
[14]    W. Zhong, X. Liu, and S. R. Hui, "A Novel Single-Layer Winding Array and Receiver Coil Structure for Contactless Battery Charging Systems with Free-Positioning and Localized Charging Features," IEEE Transactions on Industrial Electronics, vol. 58, no. 9, pp. 4136-4144, 2010.##
[15]    Z. Luo and X. Wei, "Analysis of Square and Circular Planar Spiral Coils In Wireless Power Transfer System for Electric Vehicles," IEEE Transactions on Industrial Electronics, vol. 65, no. 1, pp. 331-341, 2018.##