Hostname: page-component-8448b6f56d-t5pn6 Total loading time: 0 Render date: 2024-04-23T09:00:01.562Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of tuning capacitance of passive power repeaters on power transfer capability of inductive power transfer systems

Published online by Cambridge University Press:  06 August 2018

Rong Hua  and
Aiguo Patrick Hu
Rong Hua*
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, New Zealand
Aiguo Patrick Hu
Affiliation:
Department of Electrical and Computer Engineering, The University of Auckland, New Zealand
*
Corresponding author: R. Hua Email: rhua027@aucklanduni.ac.nz
Get access

Abstract

Power repeaters are used to extend the power transfer range or enhance the power transfer capability of Inductive Power Transfer (IPT) systems, but how to tune the power repeaters to improve the system power transfer performance remains an unsolved problem. In this paper, studies of the effect of the tuning capacitance of the power repeater of an IPT system on the power transfer capability are presented. A theoretical model is established to analyze the output power of the system with the primary coil and secondary coil tuned at a nominal resonant frequency, and a passive power repeater placed in between. By analyzing the relationship between the tuning capacitance of the power repeater and the output power, a critical tuning capacitance which sets up the boundary between enhancing and reducing the output power is determined, and the optimal tuning capacitances corresponding to the maximum and minimum output power are also obtained. A practical IPT system with a passive power repeater placed at 40, 80, and 104 mm from the primary coil is built. It has shown that the practically measured critical capacitance and the optimal tuning capacitance for maximum power transfer are in good agreement with the analytical results.

Keywords

Inductive power transferPassive power repeater
Type
Research Article
Information
Wireless Power Transfer , Volume 5 , Issue 2 , September 2018 , pp. 97 - 104
Copyright
Copyright © Cambridge University Press 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Sample, A.P.; Yeager, D.J.; Powledge, P.S.; Mamishev, A.V.; Smith, J.R.: Design of an RFID-based battery-free programmable sensing platform. IEEE Trans. Instrum. Meas., 57 (2008), 2608–2615.Google Scholar
[2]Das, R.; Yoo, H.: A multiband antenna associating wireless monitoring and Nonleaky wireless power transfer system for biomedical implants. IEEE Trans. Microwave Theory Tech., 65 (2017), 2485–2495.Google Scholar
[3]Chen, L.J.; Boys, J.T.; Covic, G.A.: Power management for multiple-pickup IPT systems in materials handling applications. IEEE J. Emerging Sel. Topics Power Electron., 3 (2015), 163–176.Google Scholar
[4]Si, P.; Hu, A.P.; Malpas, S.; Budgett, D.: A frequency control method for regulating wireless power to implantable devices. IEEE Trans. Biomed. Circuits Syst., 2 (2008), 22–29.Google Scholar
[5]Lee, G.; Gwak, H.; Kim, Y.-S.; Park, W.-S.: Wireless power transfer system for diagnostic sensor on rotating spindle, in 2013 IEEE Wireless Power Transfer (WPT), 2013, 100–102.Google Scholar
[6]Si, P.; Hu, A.P.; Budgett, D.; Malpas, S.; Yang, J.; Gao, J.: Stabilizing the operating frequency of a resonant converter for wireless power transfer to implantable biomedical sensors, in Proc. 1st Int. Conf. Sensing Technology, 2005, 477–482.Google Scholar
[7]McCormick, D.; Hu, A.P.; Nielsen, P.; Malpas, S.; Budgett, D.: Powering implantable telemetry devices from localized magnetic fields, in 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007, 2331–2335.Google Scholar
[8]Dissanayake, T.D.; Hu, A.P.; Malpas, S.; Bennet, L.; Taberner, A.; Booth, L. et al. : Experimental study of a TET system for implantable biomedical devices. IEEE Trans. Biomed. Circuits Syst. 3 (2009), 370–378.Google Scholar
[9]Yan, G.; Ye, D.; Zan, P.; Wang, K.; Ma, G.: Micro-robot for endoscope based on wireless power transfer, in International Conference on Mechatronics and Automation, 2007. ICMA 2007, 2007, 3577–3581.Google Scholar
[10]Hu, A.P.; Liu, C.; Li, H.L.: A Novel Contactless Battery Charging System for Soccer Playing Robot, in 2008 15th International Conference on Mechatronics and Machine Vision in Practice, 2008, 646–650.Google Scholar
[11]Kukde, A.; Mattigiri, S.; Singh, V.; Warty, C.; Wagh, S.: Resonance-based Wireless Power Transfer for smart grid systems, in 2014 IEEE Aerospace Conference, 2014, 1–6.Google Scholar
[12]Salas, M.; Focke, O.; Herrmann, A.S.; Lang, W.: Wireless power transmission for structural health monitoring of fiber-reinforced-composite materials. IEEE Sensors J., 14 (2014), 2171–2176.Google Scholar
[13]Kurs, A.; Karalis, A.; Moffatt, R.; Joannopoulos, J.D.; Fisher, P.; Soljačić, M.: Wireless power transfer via strongly coupled magnetic resonances. Science, 317 (2007), 83–86.Google Scholar
[14]Zaheer, A.; Hao, H.; Covic, G.A.; Kacprzak, D.: Investigation of multiple decoupled coil primary pad topologies in lumped IPT systems for interoperable electric vehicle charging. IEEE Trans. Power Electron., 30 (2015), 1937–1955.Google Scholar
[15]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
[16]Hua, R.; Hu, A.P.; Su, Y.: Three-stages magnetic field repeater for extending the range of inductive power transfer. Trans. China Electrotech. Soc., (2015), 133–137.Google Scholar
[17]Yi, Y.; Buttner, U.; Fan, Y.; Foulds, I.G.: Design and optimization of a 3-coil resonance-based wireless power transfer system for biomedical implants. Int. J. Circuit Theory Appl., 43 (2014), 1379–1390.Google Scholar
[18]Nguyen, M.Q.; Dubey, S.; Rao, S.; Chiao, C.: Wireless power transfer via air and building materials using multiple repeaters, in 2014 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS), 2014, 1–4.Google Scholar
[19]Zhong, W.; Lee, C.K.; Hui, S.: Wireless power domino-resonator systems with noncoaxial axes and circular structures. IEEE Trans. Power Electron., 27 (2012), 4750–4762.Google Scholar
[20]Hao, J.; Wang, J.; Liu, X.; Padilla, W.J.; Zhou, L.; Qiu, M.: High performance optical absorber based on a plasmonic metamaterial. Appl. Phys. Lett., 96 (2010), 251104.Google Scholar
[21]Sample, A.P.; Meyer, D.T.; Smith, J.R.: Analysis, experimental results, and range adaptation of magnetically coupled resonators for wireless power transfer. IEEE Trans. Ind. Electron., 58 (2011), 544–554.Google Scholar
[22]Ahn, D.; Hong, S.: A study on magnetic field repeater in wireless power transfer. IEEE Trans. Ind. Electron., 60 (2013), 360–371.Google Scholar
[23]Zhong, W.X.; Zhang, C.; Liu, X.; Hui, S.Y.R.: A methodology for making a three-coil wireless power transfer system more energy efficient than a Two-coil counterpart for extended transfer distance. IEEE Trans. Power Electron., 30 (2015), 933–942.Google Scholar
[24]Kiani, M.; Jow, U.-M.; Ghovanloo, M.: Design and optimization of a 3-coil inductive link for efficient wireless power transmission. IEEE Trans. Biomed. Circuits Syst., 5 (2011), 579–591.Google Scholar
[25]Niu, W.; Wang, J.; Chu, J.; Gu, W.: Optimal single relay position of a 3-coil wireless power transfer system. –J. Eng., 2016 (2016), 249–252.Google Scholar