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Magnetic coupling coefficient determination of IPT systems under operating conditions

Published online by Cambridge University Press:  10 October 2014

A. Abdolkhani  and
A.P. Hu
A. Abdolkhani*
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, New Zealand
A.P. Hu
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, New Zealand
*
Corresponding author: A. Abdolkhani Email: aabd104@aucklanduni.ac.nz
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Abstract

This study presents a method of determining the magnetic coupling coefficient of inductive power transfer (IPT) systems under real-time operating conditions by measuring the open-circuit voltage and short-circuit current of coupled coils. Besides the theoretical analysis, the proposed method is verified by finite elements simulation and practical evaluation. Both simulation and experimental results have demonstrated that the proposed method can determine the coupling coefficient of both closely and loosely coupled coils with high-quality factors. The method can be used for online monitoring of the coupling condition and real-time power flow controller design of IPT systems.

Keywords

Inductive power transferMagnetic coupling coefficient
Type
Research Article
Information
Wireless Power Transfer , Volume 1 , Issue 2 , September 2014 , pp. 83 - 86
Copyright
Copyright © Cambridge University Press 2014 

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References

[1] Boys, J.; Covic, G.; Green, A.W.: Stability and control of inductively coupled power transfer systems. Electric Power Applications, IEE Proceeding, 147 1, (2002), 37–43.Google Scholar
[2] Chen, C.-J.; Chu, T.-H.; Lin, C.-L.; Jou, Z.-C.: A study of loosely coupled coils for wireless power transfer. IEEE Trans. Circuits Syst. II: Express Briefs, 57 (2010), 536–540.Google Scholar
[3] Li, H.L.; Hu, A.P.; Covic, G.A.; Tang, C.S.: Optimal coupling condition of IPT system for achieving maximum power transfer. Electron. Lett., 45 (2009), 76–77.Google Scholar
[4] Covic, G.A.; Boys, J.T.: Inductive power transfer. Proc. IEEE, 101 (2013), 1276–1289.Google Scholar
[5] Hesterman, B.: Analysis and modeling of magnetic coupling, in IEEE, PELS, Denver Chapter, IEEE Power Electronics Society, University of Colorado, 2007.Google Scholar
[6] Flores, J.; Becerra, J.; Herrera, J.: Calculation of the Magnetic Coupling between two Coils of Transcutaneous Energy System. International Journal of Advanced Research in Computer and Communication Engineering, 1 8, (2012), 574–578.Google Scholar
[7] Moradewicz, A.J.; Kazmierkowski, M.P.: FPGA based control of series resonant converter for contactless power supply, in ISIE 2008. IEEE Int. Symp. Industrial Electronics, 2008, 245–250.Google Scholar
[8] Boys, J.T.; Elliott, G.A.J.; Covic, G.A.: An appropriate magnetic coupling co-efficient for the design and comparison of ICPT pickups. IEEE Trans. Power Electron., 22 (2007), 333–335.Google Scholar
[9] Agbinya, J.I.: A magneto-inductive link budget for wireless power transfer and inductive communication systems. Progr. Electromagn. Res. C, 37 (2013), 15–28.CrossRefGoogle Scholar
[10] Budhia, M.; Covic, G.A.; Boys, J.T.: Design and optimization of circular magnetic structures for lumped inductive power transfer systems. IEEE Trans. Power Electron., 26 (2011), 3096–3108.Google Scholar
[11] Zaheer, A.; Covic, G.; Kacprzak, D.: A bipolar pad in a 10 kHz, 300W distributed IPT system for AGV applications. IEEE Trans. Ind. Electron., (2013), 61 7, 1–1.Google Scholar
[12] Stielau, O.; Covic, G.: Design of loosely coupled inductive power transfer systems, in Proc. Int. Conf. on Power System Technology, 2000 (PowerCon 2000)., 2002, 85–90.Google Scholar
[13] Wang, B.; Hu, A.P.; Budgett, D.: Power flow control based solely on slow feedback loop for heart pump applications. IEEE Trans. Biomed. Circuits Syst., 6 (2012), 279–286.Google Scholar
[14] Boys, J.T.; Elliott, G.A.; Covic, G.A.: An appropriate magnetic coupling co-efficient for the design and comparison of ICPT pickups. IEEE Trans. Power Electron., 22 (2007), 333–335.Google Scholar
[15] Abdolkhani, A.; Hu, A.P.; Covic, G.A.; Moridnejad, M.: Contactless Slipring System based on rotating magnetic field principle for rotary applications, in 2013 IEEE on Energy Conversion Congress and Exposition (ECCE), 2013, 2566–2573.CrossRefGoogle Scholar
[16] Abdolkhani, A.; Hu, A.P.; Moridnejad, M.; Croft, A.: Wireless charging pad based on travelling magnetic field for portable consumer electronics, in IECON 2013–39th Annual Conf. Industrial Electronics Society, of the IEEE, 2013, 1416–1421.CrossRefGoogle Scholar
[17] Ping, S.; Hu, A.P.: Analyses of DC inductance used in ICPT power pick-ups for maximum power transfer, in Transmission and Distribution Conf. and Exhibition: Asia and Pacific (2005 IEEE/PES), 2005, 1–6.Google Scholar
[18] Xu, Y.X.; Boys, J.T.; Covic, G.A.: Modeling and controller design of ICPT pick-ups, in Proc. Int. Conf. on Power System Technology, 2002 (PowerCon 2002), 1602–1606.Google Scholar
[19] Lenaerts, B.; Puers, R.: Omnidirectional Inductive Powering for Biomedical Implants. Springer Netherlands, 2009.Google Scholar