Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates

Linlin Tan; Jiacheng Li; Chen Chen; Changxin Yan; Jinpeng Guo; Xueliang Huang

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2019.0080

Published Article

LAPSE:2019.0080

Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates

Linlin Tan, Jiacheng Li, Chen Chen, Changxin Yan, Jinpeng Guo, Xueliang Huang

January 7, 2019

Wireless power transfer (WPT) is greatly affected when the transmission channel is surrounded by non-ferromagnetic metallic objects and the alternating magnetic field interacts with the metal conductor, which is more of an issue in wirelessly charged electric vehicle (EV) applications. This paper analyses the performances of a WPT system in an environment with a non-ferromagnetic metal plate. The impedance model of the WPT system in the metal environment is established. Moreover the variation law of a coil’s equivalent inductance and resistance is deduced when the coil is surrounded by the non-ferromagnetic metal plate. Meanwhile, simulations, theory and experiments all confirm that the model is correct. Finally, since the system performance of a wireless charging system is influenced by non-ferromagnetic metals, this paper puts forward a method to improve the performance, that is, to place ferrite cores between the receiving coil and a metal plate. Experiments are carried out to verify the method, and the desired results are achieved.

Record ID

LAPSE:2019.0080

Keywords

ferrite cores, impedance model, metal, resonator, wireless power transfer

Subject

Other

Suggested Citation

Tan L, Li J, Chen C, Yan C, Guo J, Huang X. Analysis and Performance Improvement of WPT Systems in the Environment of Single Non-Ferromagnetic Metal Plates. (2019). LAPSE:2019.0080

Author Affiliations

Tan L: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Zhenjiang 212009, China
Li J: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Zhenjiang 212009, China
Chen C: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; State Grid Jiangsu Economic Research Institute, Nanjing 210096, China
Yan C: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Zhenjiang 212009, China
Guo J: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Zhenjiang 212009, China
Huang X: Department of Electrical Engineering, Southeast University, No. 2 Sipailou, Nanjing 210096, China; Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Zhenjiang 212009, China
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Journal Name

Energies

Volume

9

Issue

8

Article Number

E576

Year

2016

Publication Date

2016-07-25