Analysis of Capacitive Impedance Matching Networks for Simultaneous Wireless Power Transfer to Multiple Devices
Open accessAbstract
This paper presents wireless power transfer (WPT) characteristics according to load variation in multidevice WPT systems using capacitive impedance matching networks (IMNs). Two basis IMNs of using series-parallel (SP) capacitors and parallel-series (PS) capacitors are used. Four combinations of capacitive IMNs are considered, i.e., SP in a transmitting side and SP in a receiving (Rx) side (SP-SP), SP-PS, PS-SP, and PS-PS. The optimum capacitance values for each IMN are also derived by circuit analysis. For verification, three cases based on the number of Rx coils are considered, and the calculated results are compared with the simulated and measured results for each case. A WPT system for only a single device has identical power transfer efficiency for four combinations of the IMNs. Multidevice WPT systems with the PS IMN in Rx sides are found to transfer more power toward the Rx coil with lower load impedance according to the load variation. On the other hand, using the SP IMN in Rx sides is less sensitive to load variation than using the PS IMN. In addition, a WPT system using the PS-PS IMN combination is less responsive to the cross coupling between Rx coils than that using the SP-SP IMN combination.
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Many methods are proposed like road built-in pad, pad array-based coupling technique, and segmental track strategy.
“Many methods are proposed like road built-in pad [160], pad array-based coupling technique [161], and segmental track strategy [162].”
From A Review of Bidirectional On-Board Chargers for Electric Vehicles (2021) · cites this paper as [162]
The citation [162] is attached specifically to “segmental track strategy.” The Introduction and Conclusion discuss capacitive impedance-matching networks for charging multiple devices, but the passages found for “segmental track strategy” and segmented roadway power transfer do not address that strategy. Page numbers are unavailable in our copy. (LLM, conf=0.76)
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Cites
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Flagged first, then by citations
Research works printed but not linked: 2
- J. Kim, H.-C. Son, D.-H. Kim, K.-H. Kim, and Y.-J. Park, "Analysis of wireless energy transfer to multiple devices using CMT," in Proc. APMC, 2010, pp. 2149-2152.
- Dr. Kim was a recipient of the Best Paper Award at the IEEE Microwave Theory and Techniques Society International Microwave Symposium Series-Innovative Wireless Power Transmission in 2011.
Cited by
Sorted by citations
Simultaneous Wireless Information and Power Transfer (SWIPT): Recent Advances and Future Challenges
Ponnimbaduge Perera, T. D., Jayakody, D. N. K., Sharma, S. K., Chatzinotas, S., & Li, J. (2018) · IEEE Communications Surveys & Tutorials · doi:10.1109/comst.2017.2783901 · Cited by 920 · see citing works
A Review of Bidirectional On-Board Chargers for Electric Vehicles
Yuan, J., Dorn-Gomba, L., Callegaro, A. D., Reimers, J., & Emadi, A. (2021) · IEEE Access · doi:10.1109/access.2021.3069448 · Cited by 390 · see citing works
“Many methods are proposed like road built-in pad [160], pad array-based coupling technique [161], and segmental track strategy [162].”
Method
- Authors
- Kim, J., Kim, D.-H., & Park, Y.-J.
- Affiliations
- Shin Ansan University (KR)
- Venue
- IEEE Transactions on Industrial Electronics
- Published
- 2015-05
- Volume
- 62
- Issue
- 5
- Pages
- 2807-2813
- ISSN
- 0278-0046 (ISSN-L)
- 1557-9948
- OpenAlex
- W2143854927
- Cited by
- 152
- References
- 24
- Citations by year
- 2026: 3 · 2025: 8 · 2024: 9 · 2023: 11 · 2022: 13 · 2021: 13 · 2020: 21 · 2019: 22 · 2018: 14 · 2017: 21 · 2016: 13 · 2015: 4
- FWCI
- 6.73
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- IEEE Transactions on Industrial Electronics (publishedVersion)
- Funders
- Primary Research Program of the Korea Electrotechnology Research Institute
- Ministry of Science
- ICT
- Future Planning (14-12-N0101-08)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Mechanical Engineering › Induction Heating and Inverter Technology
- Keywords
- wireless power transfer, load variation, power transfer efficiency
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