Optimized Design Methodology and Maximum Efficiency Tracking Algorithm for Static IPT Chargers in Electric Vehicles

Leonardo A. Brum Viera; Pedro Pascoal; Cassiano Rech

doi:10.18618/REP.2005.2.023027

Authors

Leonardo A. Brum Viera Universidade Federal de Santa Maria https://orcid.org/0000-0001-9630-0945
Pedro Pascoal Institute for Systems Engineering and Computers https://orcid.org/0009-0008-9026-2843
Cassiano Rech Universidade Federal de Santa Maria https://orcid.org/0000-0001-8225-9240

DOI:

https://doi.org/10.18618/REP.2005.2.023027

Keywords:

Electric Vehicle, Inductive Power Transfer (IPT), Optimization Design, Particle Swarm Optimization (PSO), Wireless Charger, Wireless Power Transfer (WPT)

Abstract

In recent years, technologies related to the electrification of transportation have attracted significant attention. Among these, wireless charging stands out, even facing numerous challenges concerning design and parameter optimization. Consequently, this article introduces a novel design methodology to improve the performance of inductive power transfer (IPT) systems for wireless charging applications in electric vehicles. The methodology considers operational limits of switches and passive components. By using a combination of Newton-Raphson and Particle Swarm Optimization (PSO) algorithms, the proposed approach efficiently determines both electrical and physical parameters of converters and coils to achieve maximum efficiency at a chosen operational point. Furthermore, a Maximum Efficiency Point Tracking (MEPT) algorithm is employed for optimal system operation. The proposed methodology is validated through experimental analysis using a 3.6 kW setup. Results demonstrate a power transfer efficiency around 89.4 %, while ensuring that current and voltage levels remain within safe operating areas for the components.

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Author Biographies

Leonardo A. Brum Viera, Universidade Federal de Santa Maria

received his B.S. degree in Electrical Engineering from the Regional University of the Northwest of the State of Rio Grande do Sul (UNIJUÍ), Ijuí, Brazil, in 2019, and his M.S. degree in Electrical Engineering from the Federal University of Santa Maria (UFSM), Santa Maria, Brazil, in 2022. He is currently a Ph.D. student at the same university. From 2015 to 2019, he worked as a junior researcher at the Industrial Automation and Control Group, GAIC/UNIJUÍ. Since 2019, he has been a researcher at the Power Electronics and Control Group, GEPOC/INRI/UFSM, where he conducts research in the field of electric vehicles, focusing on vehicle traction inverters and wireless charging systems. He currently serves as the president of the IEEE UFSM student branch.

Pedro Pascoal, Institute for Systems Engineering and Computers

received the B.S. degree in electrical engineering from the Regional University of the Northwest of the State of Rio Grande do Sul (UNIJUÍ), Ijuí, Brazil, in 2020, and the M.S. degree in electrical engineering from the Federal University of Santa Maria (UFSM), Santa Maria, Brazil, in 2023. From 2016 to 2020, he was a junior researcher at the Industrial Automation and Control Group, GAIC/UNIJUÍ. From 2020 to 2023, he was a researcher at the Power Electronics and Control Group, GEPOC/INRI/UFSM. Since 2023, he has been a researcher at Centre for Power and Energy Systems (CPES/SGEVL) belonging to the Institute for Systems and Computer Engineering, Technology and Science (INESC TEC). His research interests include power electronics applied to electric vehicles charger systems.

Cassiano Rech, Universidade Federal de Santa Maria

received the B.S., M.S., and Ph.D. degrees in electrical engineering from the Federal University of Santa Maria (UFSM), Santa Maria, Brazil, in 1999, 2001, and 2005, respectively. From 2005 to 2007, he was with the Universidade Regional do Noroeste do Estado do Rio Grande do Sul, Ijuí, Brazil. From 2008 to 2009, he was with the Santa Catarina State University, Florianópolis, Brazil. Since 2009, he has been with the UFSM, where he is currently a Professor and Member of the Power Electronics and Control Research Group, GEPOC. Dr. Rech was Editor-in-Chief of the Brazilian Power Electronics Journal in 2014–2015. From 2016 to 2017, he was President of the Brazilian Power Electronics Society. Since 2018, he has been an Associate Editor for IEEE Transactions on Industrial Electronics. His research interests include multilevel converters, distributed energy resources, and power electronics applied to transportation electrification.

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