Antithetical Design Methodologies of Position-Free Transmitter Coils in Wireless Power Transfer

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This paper presents design concepts, design implementation and results evaluation of two antithetical design methodologies for transmitter coils in inductive power transfer (IPT) systems. The IPT transmitter coil design targets at achieving homogeneous-flux distribution at the receivers' position, thus, the limited misalignment can be fully countered by passive magnetic design. However, different design effort is expected based on the coil's structure, and corresponding modelling and design methods. In this investigation, we adopted two methodologies for the homo-flux transmitter coil design: one is to derive an analytical solution and the other is to explore a Finite Element Analysis (FEA) based solution. By implementing the genetic algorithm (GA) as the optimization tool, both design methods can generate the optimal structure of transmitter coils. However, different design complexity, calculating efforts and slightly different results are observed. The result evaluation is presented in this paper with finite-element-analysis (FEA) simulation and experimental results. A 6.78 MHz 48V-12V 20W experimental prototype is demonstrated to verify the analysis.

Original languageEnglish
Title of host publicationProceedings of 2022 IEEE Design Methodologies Conference
Number of pages6
Publication date2022
ISBN (Print)978-1-6654-8000-0
ISBN (Electronic)978-1-6654-7999-8
Publication statusPublished - 2022
Event2022 IEEE Design Methodologies Conference - Bath, United Kingdom
Duration: 1 Sept 20222 Sept 2022


Conference2022 IEEE Design Methodologies Conference
Country/TerritoryUnited Kingdom


  • Genetic algorithm
  • Homogeneous-flux
  • Inductive coupler
  • Wireless power transfer


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