Analysis of inductive coupling coils for extending distances of efficient wireless power transmission

Ching Wen Yang, Chin-Lung Yang

Research output: Contribution to conferencePaper

7 Citations (Scopus)

Abstract

This paper proposed an approach to extend the transmission distances of wireless power transmission (WPT) systems under the constraint of the coil size and optimized delivered power and efficiency. Based on the reflected load theory, the inductive coupling coils can be modelled as an equivalent circuit for simple analysis and be extended to multiple-coil wireless power transmission systems. According to this proposed approach, power transmission efficiency (PTE), power delivered to load (PDL), and geometric factors of the coil are taken into consideration simultaneously as the proposed figure-of-merit (FoM) to optimize the performance of the wireless power transmission systems. Finally, a practical 4-coil WPT was implemented to verify the theory, and based on the FoM, the most efficient design parameters of WPT were identified. The optimal distance was increased by 50%, and the PTE remains more than 78%.

Original languageEnglish
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013 - Singapore, Singapore
Duration: 2013 Dec 92013 Dec 11

Other

Other2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013
CountrySingapore
CitySingapore
Period13-12-0913-12-11

Fingerprint

Power transmission
Equivalent circuits

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Health Informatics

Cite this

Yang, C. W., & Yang, C-L. (2013). Analysis of inductive coupling coils for extending distances of efficient wireless power transmission. Paper presented at 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013, Singapore, Singapore. https://doi.org/10.1109/IMWS-BIO.2013.6756177
Yang, Ching Wen ; Yang, Chin-Lung. / Analysis of inductive coupling coils for extending distances of efficient wireless power transmission. Paper presented at 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013, Singapore, Singapore.
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Yang, CW & Yang, C-L 2013, 'Analysis of inductive coupling coils for extending distances of efficient wireless power transmission' Paper presented at 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013, Singapore, Singapore, 13-12-09 - 13-12-11, . https://doi.org/10.1109/IMWS-BIO.2013.6756177

Analysis of inductive coupling coils for extending distances of efficient wireless power transmission. / Yang, Ching Wen; Yang, Chin-Lung.

2013. Paper presented at 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013, Singapore, Singapore.

Research output: Contribution to conferencePaper

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AB - This paper proposed an approach to extend the transmission distances of wireless power transmission (WPT) systems under the constraint of the coil size and optimized delivered power and efficiency. Based on the reflected load theory, the inductive coupling coils can be modelled as an equivalent circuit for simple analysis and be extended to multiple-coil wireless power transmission systems. According to this proposed approach, power transmission efficiency (PTE), power delivered to load (PDL), and geometric factors of the coil are taken into consideration simultaneously as the proposed figure-of-merit (FoM) to optimize the performance of the wireless power transmission systems. Finally, a practical 4-coil WPT was implemented to verify the theory, and based on the FoM, the most efficient design parameters of WPT were identified. The optimal distance was increased by 50%, and the PTE remains more than 78%.

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Yang CW, Yang C-L. Analysis of inductive coupling coils for extending distances of efficient wireless power transmission. 2013. Paper presented at 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Tecbhnologies for Biomedical and Healthcare Applications, IMWS-BIO 2013, Singapore, Singapore. https://doi.org/10.1109/IMWS-BIO.2013.6756177