Proceedings of the International Conference on Smart Innovations in Electrical Engineering (ICSIEE 2025)

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Two Stage Onboard Electric Vehicle Charger

Authors
Nivedh Johnson1, *, Preethi Sebastian1, Jolly George1, Aiswarya Chandran1, Aswin Aji1
1APJ Abdul Kalam Technological University, Department of Electrical & Electronics Engineering, Mangalam College of Engineering, Ettumannoor, India
*Corresponding author. Email: georgenivedh007@gmail.com
Corresponding Author
Nivedh Johnson
Available Online 22 October 2025.
DOI
10.2991/978-94-6463-870-7_5How to use a DOI?
Keywords
On board charger; Interleaved Boost Converter; LLC Resonant Converter; MATLAB
Abstract

High energy usage for transportation and impacts of air pollution paved the way for transport electrification. As part of this, global move towards transport electrification. The core part of a green vehicle is an onboard charger for batteries. It has two stages of power conversion. Level I battery chargers, which include a DC-DC converter and an AC- DC power factor compensated converter, are utilized in medium-powered electric vehicles. Interleaved boost topology is selected as AC-DC Converter for lowering Total Harmonic Distortion (THD) and Power Factor Correction (PFC). The peak current control is selected to reduce switching losses. The LLC resonant converter is selected as a DC-DC converter for reducing switching losses and improved efficiency. It has galvanic isolation. For charging of battery, Constant Current Constant Voltage (CC CV) charging is used to improve charging time and battery life. It is simulated and tested by varying load. The characteristics of Li-ion batteries with nominal voltage 48 V is analyzed. SOC and voltage are noted. By varying SOCs, CC CV modes are analyzed, and output is verified and tabulated. Here a two-stage onboard level 1 charger having 3000 W for a 3-wheeler with Li-ion battery is designed and simulated in MATLAB Simulink.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Smart Innovations in Electrical Engineering (ICSIEE 2025)
Series
Advances in Engineering Research
Publication Date
22 October 2025
ISBN
978-94-6463-870-7
ISSN
2352-5401
DOI
10.2991/978-94-6463-870-7_5How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Nivedh Johnson
AU  - Preethi Sebastian
AU  - Jolly George
AU  - Aiswarya Chandran
AU  - Aswin Aji
PY  - 2025
DA  - 2025/10/22
TI  - Two Stage Onboard Electric Vehicle Charger
BT  - Proceedings of the International Conference on Smart Innovations in Electrical Engineering (ICSIEE 2025)
PB  - Atlantis Press
SP  - 31
EP  - 44
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-870-7_5
DO  - 10.2991/978-94-6463-870-7_5
ID  - Johnson2025
ER  -