The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances

Juntao Huang; Qianhong Chen; Xiaoyong Ren; Siu Chung Wong

doi:10.1109/ECCE.2015.7310300

The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances

Juntao Huang, Qianhong Chen, Xiaoyong Ren, Siu Chung Wong

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

Abstract

Multi-coil links are generally introduced to improve the efficiency and extend the energy transmission distance. However, most of them are relay solutions which are equivalent to reduce the distance. In this paper, two kinds of 3-and three kinds of 4-coil links unchanging the energy transmission distance are proposed respectively. Among these links, by comparing the characteristics, the appropriate coil arrangements of 3-, 4-coil links are selected. Through analyzing the reflected impedance ZR2, it is pointed out that 3-coil link improves the efficiency by increasing ZR2compared with 2-coil link, and the 4-coil link, remaining the increased reflected impedance ZR2of 3-coil link, has another flexibility with the added power coil to adjust the efficiency and output power. Finally, two prototypes with different power levers are fabricated in the lab. The experimental results of the small power prototype can verify the analysis and comparison of efficiency, output power and voltage gain of 2-, 3- and 4-coil links. The big power prototype improves the efficiency from 50.0% in 2-coil link to 85.1% in 3-coil link with Po=508.8W and d23=25cm.

Original language	English
Title of host publication	2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Publisher	IEEE
Pages	4533-4538
Number of pages	6
ISBN (Electronic)	9781467371506
DOIs	https://doi.org/10.1109/ECCE.2015.7310300
Publication status	Published - 27 Oct 2015
Event	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Palais des Congres de Montreal (Montreal Convention Centre), Montreal, Canada Duration: 20 Sept 2015 → 24 Sept 2015

Conference

Conference	7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015
Country/Territory	Canada
City	Montreal
Period	20/09/15 → 24/09/15

Keywords

2-
3-
4-coil links
efficiency
the reflected impedance ZR2
voltage gain

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

More information

10.1109/ECCE.2015.7310300

Cite this

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title = "The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances",

abstract = "Multi-coil links are generally introduced to improve the efficiency and extend the energy transmission distance. However, most of them are relay solutions which are equivalent to reduce the distance. In this paper, two kinds of 3-and three kinds of 4-coil links unchanging the energy transmission distance are proposed respectively. Among these links, by comparing the characteristics, the appropriate coil arrangements of 3-, 4-coil links are selected. Through analyzing the reflected impedance ZR2, it is pointed out that 3-coil link improves the efficiency by increasing ZR2compared with 2-coil link, and the 4-coil link, remaining the increased reflected impedance ZR2of 3-coil link, has another flexibility with the added power coil to adjust the efficiency and output power. Finally, two prototypes with different power levers are fabricated in the lab. The experimental results of the small power prototype can verify the analysis and comparison of efficiency, output power and voltage gain of 2-, 3- and 4-coil links. The big power prototype improves the efficiency from 50.0% in 2-coil link to 85.1% in 3-coil link with Po=508.8W and d23=25cm.",

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Huang, J, Chen, Q, Ren, X & Wong, SC 2015, The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances. in 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015., 7310300, IEEE, pp. 4533-4538, 7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015, Montreal, Canada, 20/09/15. https://doi.org/10.1109/ECCE.2015.7310300

The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances. / Huang, Juntao; Chen, Qianhong; Ren, Xiaoyong et al.
2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. IEEE, 2015. p. 4533-4538 7310300.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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ER -

The selection and comparison of multi-coil wireless power transmission solutions via magnetic resonances

Abstract

Conference

Keywords

ASJC Scopus subject areas

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