Control of WPT Transmitter Coils for Power Distribution to Two Receiver Coils without Feedback

Jun Heo, Sungyeal Park, Sang-Won Kim, In-Kui Cho, Songnam Hong and Yong Bae Park
Additional contact information
Jun Heo: Department of AI Convergence Network, Ajou University, Suwon 16499, Korea
Sungyeal Park: Department of AI Convergence Network, Ajou University, Suwon 16499, Korea
Sang-Won Kim: Electronics and Telecommunications Research Institute, Daejeon 34129, Korea
In-Kui Cho: Electronics and Telecommunications Research Institute, Daejeon 34129, Korea
Songnam Hong: Electronic Engineering, Hanyang University, Seoul 04763, Korea
Yong Bae Park: Department of AI Convergence Network, Ajou University, Suwon 16499, Korea

Energies, 2021, vol. 14, issue 20, 1-10

Abstract: This paper proposes the algorithm to control the current ratio of the transmitting (Tx) coils for proper power distribution to the two receiving (Rx) coils in wireless power transfer (WPT) system. The proposed algorithm assumes that each Rx coil appears at different times to consider the situation where multiple users request power transmission as practically as possible. That is, suppose the second Rx coil enters the charging space later than the first Rx coil. When each coil enters the charging space, only the Tx coil is used to obtain the value required for calculation. Using the obtained result, the optimized Tx coil current is calculated by the proposed algorithm and proper power distribution to both Rx coils is achieved. Three Tx coils and two Rx coils are constructed using the ANSYS MAXWELL simulation tool. As a result of applying the proposed algorithm, it was confirmed that a similar level of power was transmitted between 40∼60%, respectively. The sum of the power transmitted to the two Rx coils also appeared as more than 75%.

Keywords: wireless power transfer; magnetic resonance; optimization; max-min problem; power distribution (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/20/6828/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/20/6828/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:20:p:6828-:d:659549

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().