A New ZVS Tuning Method for Double-Sided LCC Compensated Wireless Power Transfer System

Sizhao Lu, Xiaoting Deng, Wenbin Shu, Xiaochao Wei and Siqi Li
Additional contact information
Sizhao Lu: Faculty of Electric Power Engineering, Kunming University of Science of Technology, Kunming 650500, China
Xiaoting Deng: Faculty of Electric Power Engineering, Kunming University of Science of Technology, Kunming 650500, China
Wenbin Shu: Faculty of Electric Power Engineering, Kunming University of Science of Technology, Kunming 650500, China
Xiaochao Wei: Faculty of Electric Power Engineering, Kunming University of Science of Technology, Kunming 650500, China
Siqi Li: Faculty of Electric Power Engineering, Kunming University of Science of Technology, Kunming 650500, China

Energies, 2018, vol. 11, issue 2, 1-14

Abstract: This paper presents a new zero voltage switching (ZVS) tuning method for the double-sided inductor/capacitor/capacitor (LCC) compensated wireless power transfer (WPT) system. An additional capacitor is added in the secondary side of the double-sided LCC compensation network in order to tune the network to realize ZVS operation for the primary-side switches. With the proposed tuning method, the turn off current of the primary-side switches at the low input voltage range can be reduced compared with the previous ZVS tuning method. Consequently, the efficiency of the WPT at the low input voltage range is improved. Moreover, the relationship between the input voltage and the output power is more linear than that of the previous ZVS tuning method. In addition, the proposed method has a lower start-up voltage. The analysis and validity of the proposed tuning method are verified by simulation and experimental results. A WPT system with up to 3.5 kW output power is built, and 95.9% overall peak efficiency is achieved.

Keywords: double-sided inductor/capacitor/capacitor (LCC); wireless power transfer (WPT); zero voltage switching (ZVS) (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: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.mdpi.com/1996-1073/11/2/307/pdf (application/pdf)
https://www.mdpi.com/1996-1073/11/2/307/ (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:11:y:2018:i:2:p:307-:d:129723

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 ().