Investigation of a Multi-Modular IPT System on the Efficiency and Current Balancing due to Inter-/Cross Coupling

Calvin Riekerk, Jianning Dong, Thiago Batista Soeiro, Pavol Bauer

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

Abstract

Inductive power transfer systems can process higher power using multiple charging pad modules connected in parallel. However, the effects on the system operation of the inter-/cross coupling among the pads have to be studied. This paper analyses the power transfer efficiency and current distribution of a quadruple modular IPT system. Additionally, a sensitivity analysis of the power transfer efficiency is provided based on the tolerances of the secondary resonant capacitors. The analysis shows that the efficiency of a multi-modular IPT system will increase compared to a single module and that there would not be a negligible imbalance in the current due to the inter-/cross coupling. In the experiments, the results of the quadruple modular IPT system's estimated AC efficiency are lower than a single module. It also shows that the could be bifurcation when multiple modules are deployed. Both can be attributed to the mismatch in resonant frequency, self-inductance and main mutual inductance between the modules. Future work will focus on mitigating the circulating currents caused by the mismatch between modules.

Original languageEnglish
Title of host publication2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
PublisherIEEE
Pages1620-1624
Number of pages5
ISBN (Electronic)979-8-3503-1644-5, 979-8-3503-1643-8
ISBN (Print)979-8-3503-1645-2
DOIs
Publication statusE-pub ahead of print/First online - 29 Dec 2023
Event2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023 - Nashville, United States
Duration: 29 Oct 20232 Nov 2023

Publication series

Name IEEE Energy Conversion Congress and Exposition
PublisherIEEE
ISSN (Print)2329-3721
ISSN (Electronic)2329-3748

Conference

Conference2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Abbreviated titleECCE 2023
Country/TerritoryUnited States
CityNashville
Period29/10/232/11/23

Keywords

  • 2024 OA procedure
  • Inter-/Cross Coupling
  • Modular Design
  • Inductive Power Transfer

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