A Three-Phase Isolated Multilevel AC-DC Converter for Dual Electric Vehicle Battery Charging
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Date
2025
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
In this paper, a two-stage electric vehicle (EV) architecture of an AC-DC converter is proposed for charging two batteries at a time. It consists of a three-phase multilevel boost PFC converter followed by a bidirectional dual-output DC-DC converter. Also, the DC-DC converter has a Zero voltage switching (ZVS) and isolated outputs. The two stages function independently, allowing the AC-DC stage to operate in continuous conduction mode (CCM) without affecting the duty cycle variation of the DC-DC stage. A suitable control technique is also proposed to improve total harmonic distortion (THD) and power factor, equal power sharing of two batteries. A detailed operating analysis of the proposed dual battery charger is discussed. The effectiveness of the proposed charger is validated by extensive test of laboratory prototype. © 1972-2012 IEEE.
Description
Keywords
Battery chargers, DC converter, Electric vehicle batteries, Multilevels, Power factor corrections, Three level DC-DC converter, Three phase, Three phasis, Three-level, Zero- Voltage Switching, State of charge
Citation
IEEE Transactions on Industry Applications, 2025, 61, 2, pp. 3246-3258