Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 1
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

With the development of wireless power transfer technology, more and more attention has been paid to its electromagnetic safety. In this paper, a novel hybrid shielding structure composed of the innermost fan-shaped ferrite, the interlayer nanocrystalline strip and the outermost aluminum foil is proposed to shield the electromagnetic field of the inductive power transfer system. Eight structure parameters of the proposed shielding are optimized by finite element simulation, in order to reduce the magnetic leakage of the system and improve the utilization rate of shielding materials. In addition, the proposed structure is compared with two types of typical double-layer hybrid shielding from the perspectives of the weight, the coupling coefficient and the magnetic flux leakage. Both simulation and experiment results show that the cost and weight of the proposed shield are about 60% lower than the traditional disk shield. Moreover, the shielding layer proposed in this paper can not only effectively reduce the magnetic flux leakage of the system, but also maintain a high coupling coefficient.
Go to article

Bibliography

[1] Zhang Z., Pang H., Georgiadis A., Cecati C., Wireless Power Transfer—An Overview, IEEE Transactions on Industrial Electronics, vol. 66, no. 2, pp. 1044–1058 (2019).
[2] Kalwar K.A., Aamir M., Mekhilef S., Inductively coupled power transfer (ICPT) for electric vehicle charging – A review, Renewable and Sustainable Energy Reviews, vol. 47, pp. 462–475 (2015).
[3] Machura P., Li Q., A critical review on wireless charging for electric vehicles, Renewable and Sustainable Energy Reviews, vol. 104, pp. 209–234 (2019).
[4] Li H., Wang C., Liu Y., Yue R., Research on Single-Switch Wireless Power Transfer System Based on SiC MOSFET, IEEE Access, vol. 7, pp. 163796–163805 (2019).
[5] Zheng J., Wang C., Xia D., Design and analysis of the ferrite air-gapped cores for a resonant inductor[ J], Archives of Electrical Engineering, vol. 67, pp. 579–589 (2018).
[6] Xu H., Wang C., Xia D., Liu Y., Design of Magnetic Coupler for Wireless Power Transfer, Energies, vol. 12, no. 15 (2019).
[7] Christ A., Douglas M.,Nadakuduti J.,Kuster N., Assessing Human Exposure to Electromagnetic Fields from Wireless Power Transmission Systems, Proceedings of the IEEE, vol. 101, no. 6, pp. 1482–1493 (2013).
[8] Ding P., Bernard L., Pichon L., Razek A., Evaluation of Electromagnetic Fields in Human Body Exposed to Wireless Inductive Charging System, IEEE Transactions on Magnetics, vol. 50, no. 2, pp. 1037–1040 (2014).
[9] International Commission on Non-Ionizing Radiation Protection Guidelines for limiting exposure to time-varying electric and magnetic fields (1 Hz to 100 kHz), Health Phys., vol. 99, pp. 818–836 (2010).
[10] Tan L., Elnail K.E.I., Ju M., Huang X., Comparative Analysis and Design of the Shielding Techniques in WPT Systems for Charging EVs, Energies, vol. 12, no. 11 (2019).
[11] Choi S.Y., Gu B.W., Lee S.W., Lee W.Y., Huh J., Rim C.T., Generalized Active EMF Cancel Methods forWireless Electric Vehicles, IEEE Transactions on Power Electronics, vol. 29, no. 11, pp. 5770–5783 (2014).
[12] Zhu Q., Zhang Y., Guo Y., Liao C.,Wang L.,Wang L., Null-Coupled Electromagnetic Field Canceling Coil for Wireless Power Transfer System, IEEE Transactions on Transportation Electrification, vol. 3, no. 2, pp. 464–473 (2017).
[13] Zeng H., Liu Z., Hou Y., Hei T., Zhou B., Optimization of Magnetic Core Structure for Wireless Charging Coupler, IEEE Transactions on Magnetics, vol. 53, no. 6, pp. 1–4 (2017).
[14] Houji L., Chunfang W., Zhihao W., Dan L., Research of shield structure for wireless power transfer system, Advanced Technology of Electrical Engineering and Energy, vol. 38, no. 5, pp. 74–83 (2019).
[15] Stergiou C.A., Zaspalis V., Impact of Ferrite Shield Properties on the Low-Power Inductive Power Transfer, IEEE Transactions on Magnetics, vol. 52, no. 8, pp. 1–9 (2016).
[16] Wen F., Huang X., Optimal Magnetic Field Shielding Method by Metallic Sheets in Wireless Power Transfer System, Energies, vol. 9, no. 9 (2016).
[17] Li J., Huang X., Chen C., Tan L., Wang W., Guo J., Effect of metal shielding on a wireless power transfer system, AIP Advances, vol. 7, no. 5 (2017).
[18] Park H.H.,Kwon J.H.,Kwak S.I., Ahn S., Magnetic Shielding Analysis of a Ferrite Plate with a Periodic Metal Strip, IEEE Transactions on Magnetics, vol. 51, no. 8, pp. 18 (2015).
[19] Park H.H., Kwon J.H., Kwak S.I., Ahn S., Effect of Air-Gap Between a Ferrite Plate and Metal Strips on Magnetic Shielding, IEEE Transactions on Magnetics, vol. 51, no. 11, pp. 1–4 (2015).
[20] Kim H., Song C., Kim D., Jung D.H., Kim I., Kim Y., Kim J., Ahn S., Kim J., Coil Design and Measurements of Automotive Magnetic Resonant Wireless Charging System for High-Efficiency and Low Magnetic Field Leakage, IEEE Transactions on Microwave Theory and Techniques, vol. 64, no. 2, pp. 1–18 (2016).
[21] Kim S., Covic G.A., Boys J.T., Tripolar Pad for Inductive Power Transfer Systems for EV Charging, Transactions on Power Electronics, vol. 32, no. 7, pp. 5045–5057 (2017).
[22] Kim M., Byun J., Lee B.K., Performance Analysis of Magnetic Power Pads for Inductive Power Transfer Systems with Ferrite Structure Variation, Journal of Electrical Engineering and Technology, vol. 12, pp. 1211–1218 (2017).
[23] Budhia M., Boys J.T., Covic G.A., Huang C., Development of a Single-Sided Flux Magnetic Coupler for Electric Vehicle IPT Charging Systems, IEEE Transactions on Industrial Electronics, vol. 60, no. 1, pp. 318–328 (2013).
Go to article

Authors and Affiliations

Yun Rui Liu
1
Chunfang Wang
1
Dongwei Xia
1
Rui Yue
1

  1. Qingdao University, China

This page uses 'cookies'. Learn more