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- Publisher Website: 10.1109/TPEL.2017.2748161
- Scopus: eid_2-s2.0-85029157621
- WOS: WOS:000428645100072
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Article: Reconfigurable Wireless Power Transfer Systems With High Energy Efficiency Over Wide Load Range
| Title | Reconfigurable Wireless Power Transfer Systems With High Energy Efficiency Over Wide Load Range |
|---|---|
| Authors | |
| Keywords | Resistance Energy efficiency Impedance Receivers Capacitors |
| Issue Date | 2018 |
| Publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=63 |
| Citation | IEEE Transactions on Power Electronics, 2018, v. 33 n. 7, p. 6379-6390 How to Cite? |
| Abstract | Optimum energy efficiency in a wireless power transfer (WPT) system usually occurs only at a specific load value while the load such as a battery is normally not constant. A major challenge in WPT is, therefore, to achieve high energy efficiency over a wide load range. Previously, impedance transformation methods such as dc-dc converters and use of a relay coil have been used to transform the practical load resistance to the optimum (or near-optimum) value. In this paper, a new approach based on reconfigurable magnetic resonant structures is proposed to achieve high energy efficiency and low volt-amp ratings. This basic principle is to create more than one efficiency-load curve. The WPT system is controlled to be operated within the top regions of the energy efficiency curves of the reconfigurable circuits so that high energy efficiency can be achieved over a very wide load range. The principle of this new approach is explained with an analysis and verified with practical measurements. |
| Persistent Identifier | http://hdl.handle.net/10722/278154 |
| ISSN | 2021 Impact Factor: 5.967 2020 SCImago Journal Rankings: 2.159 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Zhong, W | - |
| dc.contributor.author | Hui, SY | - |
| dc.date.accessioned | 2019-10-04T08:08:32Z | - |
| dc.date.available | 2019-10-04T08:08:32Z | - |
| dc.date.issued | 2018 | - |
| dc.identifier.citation | IEEE Transactions on Power Electronics, 2018, v. 33 n. 7, p. 6379-6390 | - |
| dc.identifier.issn | 0885-8993 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/278154 | - |
| dc.description.abstract | Optimum energy efficiency in a wireless power transfer (WPT) system usually occurs only at a specific load value while the load such as a battery is normally not constant. A major challenge in WPT is, therefore, to achieve high energy efficiency over a wide load range. Previously, impedance transformation methods such as dc-dc converters and use of a relay coil have been used to transform the practical load resistance to the optimum (or near-optimum) value. In this paper, a new approach based on reconfigurable magnetic resonant structures is proposed to achieve high energy efficiency and low volt-amp ratings. This basic principle is to create more than one efficiency-load curve. The WPT system is controlled to be operated within the top regions of the energy efficiency curves of the reconfigurable circuits so that high energy efficiency can be achieved over a very wide load range. The principle of this new approach is explained with an analysis and verified with practical measurements. | - |
| dc.language | eng | - |
| dc.publisher | Institute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=63 | - |
| dc.relation.ispartof | IEEE Transactions on Power Electronics | - |
| dc.rights | IEEE Transactions on Power Electronics. Copyright © Institute of Electrical and Electronics Engineers. | - |
| dc.rights | ©20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | - |
| dc.subject | Resistance | - |
| dc.subject | Energy efficiency | - |
| dc.subject | Impedance | - |
| dc.subject | Receivers | - |
| dc.subject | Capacitors | - |
| dc.title | Reconfigurable Wireless Power Transfer Systems With High Energy Efficiency Over Wide Load Range | - |
| dc.type | Article | - |
| dc.identifier.email | Hui, SY: ronhui@eee.hku.hk | - |
| dc.identifier.authority | Hui, SY=rp01510 | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1109/TPEL.2017.2748161 | - |
| dc.identifier.scopus | eid_2-s2.0-85029157621 | - |
| dc.identifier.hkuros | 306288 | - |
| dc.identifier.volume | 33 | - |
| dc.identifier.issue | 7 | - |
| dc.identifier.spage | 6379 | - |
| dc.identifier.epage | 6390 | - |
| dc.identifier.isi | WOS:000428645100072 | - |
| dc.publisher.place | United States | - |
| dc.identifier.issnl | 0885-8993 | - |