A Compact Dynamic Wireless Power Transfer System via Capacitive Coupling Achieving Stable Output

Yiming Zhang, Shuxin Chen, Xin Li, Zhengchao Yan, Yi Tang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

12 Scopus citations

Abstract

Dynamic wireless power transfer can reduce the battery capacity of charged devices. This paper proposes a dynamic capacitive power transfer (CPT) system with a compact receiver structure and a reduced transmitter cost. Compared with the conventional solution, the specially designed coupler can reduce the transmitter copper usage by 50% while still achieving stable output. A series compensation with a compensating inductor is adopted on the transmitter side and there is no compensation on the receiver side to minimize the element count and size, especially on the receiver side. Design procedures of the coupler and the compensation network are provided. The mathematical model of the dynamic CPT system is established. Simulation results have verified the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3269-3275
Number of pages7
ISBN (Electronic)9781728153018
DOIs
StatePublished - 29 Nov 2020
Event9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China
Duration: 29 Nov 20202 Dec 2020

Publication series

Name2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia

Conference

Conference9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia
Country/TerritoryChina
CityNanjing
Period29/11/202/12/20

Keywords

  • capacitive power transfer (CPT)
  • compact
  • dynamic
  • stable output
  • wireless charging
  • wireless power transfer (WPT)

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