volume | PIER Journals

Abstract

Accomplishing high efficiency with acceptable output load power is a formidable design challenge in resonant wireless power transfer (WPT) system employed for charging Electric Vehicle (EV). This necessitates a trade-off among the assorted parameters like coil quality factor, coupling coefficient and electric load for performance enrichment of resonant WPT system. It is realized that the high value of quality factor does not ensure higher power transfer efficiency but it is largely influenced by the electric load. For each coupling coefficient there exists an optimum load for which maximum power can be delivered. It is also perceived that for a fixed vertical separation gap of the coils, increasing receiver coil quality factor has no profound effect on the output load power as well as efficiency. The circuit model based analytical results agree well with the comprehensive experimental results and elucidate the strategic design guidelines for a competent wireless electric vehicle charging system.

1. Kiani, M., U. Jow, and M. Ghovanloo, "Design and optimization of a 3-coil inductive link for efficient wireless power transmission," IEEE Transactions on Biomedical Circuits and Systems, Vol. 5, No. 6, 579-591, 2011.
doi:10.1109/TBCAS.2011.2158431 Google Scholar

2. Sergeant, P. and A. Van den Bossche, "Inductive coupler for contactless power transmission," IET Electr. Power Appl., Vol. 2, No. 1, 1-7, 2008.
doi:10.1049/iet-epa:20070059 Google Scholar

3. Elliot, G., G. Covic, D. Kacprzak, and J. T. Boys, "A new concept: Asymmetrically pick-ups for inductively coupled power transfer monorail systems," IEEE Trans. Magn., Vol. 42, No. 10, 3389-3391, 2006.
doi:10.1109/TMAG.2006.879619 Google Scholar

4. Li, S. and C. C. Mi, "Wireless power transfer for electric vehicle applications," IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 3, No. 1, 4-17, 2015.
doi:10.1109/JESTPE.2014.2319453 Google Scholar

5. Hasanzadeh, S. and S. Vaez-Zadeh, "Design of a wireless power transfer system for high power moving applications," Progress In Electromagnetics Research M, Vol. 28, 258-271, 2013.
doi:10.2528/PIERM12102210 Google Scholar

6. Deng, B., B. Jia, and Z. Zhang, "Dynamic wireless charging for roadway-powered electric vehicles: A comprehensive analysis and design," Progress In Electromagnetics Research C, Vol. 69, 1-10, 2016.
doi:10.2528/PIERC16071106 Google Scholar

7. Kurs, A., A. Karalis, R. Moffatt, J. D. Joannopoulos, P. Fisher, and M. Soljacic, "Wireless power transfer via strong coupled magnetic resonances," Sci. Express, Vol. 317, No. 5834, 83-86, 2007. Google Scholar

8. Bou, E., E. Alarcon, and J. Gutierrez, "A comparison of analytical models for resonant inductive coupling wireless power transfer," PIERS Proceedings, 689-693, Moscow, Russia, August 19–23, 2012. Google Scholar

9. Sample, A. P., D. A. Meyer, and J. R. Smith, "Analysis, experimental results and range adaptation of magnetically coupled resonators for wireless power transfer," IEEE Transactions on Industrial Electronics, Vol. 58, No. 2, 544-554, 2011.
doi:10.1109/TIE.2010.2046002 Google Scholar

10. Low, Z. N., R. A. Chinga, R. Tseng, and J. Lin, "Design and test of a high-power high-efficiency loosely coupled planar wireless power transfer system," IEEE Transactions on Industrial Electronics, Vol. 56, No. 5, 1801-1812, 2009.
doi:10.1109/TIE.2008.2010110 Google Scholar

11. Jow, U. M. and M. Ghovanloo, "Design and optimization of printed spiral coils for efficient transcutaneous inductive power transmission," IEEE Trans. Biomed. Circuits Syst., Vol. 1, No. 3, 193-202, 2007.
doi:10.1109/TBCAS.2007.913130 Google Scholar

12. Hui, S. and W. Ho, "A new generation of universal contactless battery charging platform for portable consumer electronic equipment," IEEE Trans. Power Electron., Vol. 20, No. 3, 620-627, 2005.
doi:10.1109/TPEL.2005.846550 Google Scholar

13. Rotaru, M. D., R. Tanzania, R. Ayoob, T. Y. Kheng, and J. K. Sykulski, "Numerical and experimental study of the effects of load and distance variation on wireless power transfer systems using magnetically coupled resonators," IET Sci. Meas. Technol., Vol. 9, No. 2, 160-171, 2015.
doi:10.1049/iet-smt.2014.0175 Google Scholar

14. Nicoli, P. P., A. R. Esteva, and F. Silveira, "Bidirectional analysis and design of RFID using an additional resonant coil to enhance read range," IEEE Transactions on Microwave Theory and Techniques, Vol. 64, No. 7, 2357-2367, 2016.
doi:10.1109/TMTT.2016.2573275 Google Scholar

15. Li, X., X. Dai, Y. Li, Y. Sun, Z. Ye, and Z. Wang, "Coupling coefficient identification for maximum power transfer in WPT system via impedance matching," IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), 2016. Google Scholar

16. Mai, R., Y. Liu, Y. Li, P. Yue, G. Cao, and Z. He, "An active-rectifier-based maximum efficiency tracking method using an additional measurement coil for wireless power transfer," IEEE Transactions on Power Electronics, Vol. 33, No. 1, 716-728, 2018.
doi:10.1109/TPEL.2017.2665040 Google Scholar

17. Barzegaran, M. R., H. Zargarzadeh, and O. A. Mohammed, "Wireless power transfer for electric vehicle using an adaptive robot," IEEE Transactions on Magnetics, Vol. 53, No. 6, 2017.
doi:10.1109/TMAG.2017.2664800 Google Scholar

18. Zhang, X., H. Meng, B. Wei, S. Wang, and Q. Yang, "Mutual inductance calculation for coils with misalignment in wireless power transfer," The Journal of Engineering, 16, 2019. Google Scholar

19. Li, J., Q. Deng, W. Hu, and H. Zhu, "Research on quality factor of the coils in wireless power transfer system based on magnetic coupling resonance," IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW), 123-127, 2017. Google Scholar

Dr. Sushree Sangita Biswal

Dr. Durga Prasanna Kar

Dr. Satyanarayan Bhuyan