Design and Control of the Adjustable Turn-ratio LLC Converter for High-Efficiency Operation of Wired/Wireless Integrated EV Charging System

Jo, Hyeon-Woo; Sim, Dong Hyeon; Lee, Ju-A; Son, Won-Jin; Lee, Byoung-Kuk

doi:10.23919/ipec-himeji2022-ecce53331.2022.9806931

Cited by 2 publications

(1 citation statement)

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“…This method is implemented for low-power applications and is simple and cost-effective with high efficiency and increased power density. An adjustable turnratio method [61] for the transformer is applied in the integration of a wired/wireless charging system. The secondary side voltage reduction is applied by adjusting the transformer turn ratio depending on the DC-link voltage.…”

Section: Hybrid Chargingmentioning

confidence: 99%

A Comprehensive Review on Single-Stage WPT Converter Topologies and Power Factor Correction Methodologies in EV Charging

Purushothaman,

Narayanamoorthi,

Elrashidi

et al. 2023

IEEE Access

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Wireless Power Transfer (WPT) particularly in the field of Electric Vehicle charging applications has wide research opportunities because of its huge growth. The power transfer efficiency is of major concern and researchers are finding ways to improve it by reducing stages of the WPT and making it better than the wired EV charging method. The increasing penetration of charging stations in the grid brings many challenges and hence to find a suitable control scheme to enhance input power quality. For the most optimal operation and comprehensive support, the charging systems must incorporate a suitable converter topology, a well-defined control strategy, and comply with all relevant grid codes and standards. For smooth and efficient functioning these features must be included in the EV charging systems. This paper presents a review of single-stage topologies and the power factor correction methods employed for EV wireless charging. An overview of different charging methods is first presented then the AC input and DC input singlestage converter are discussed, and following that methodologies for improving power factor correction are reviewed with the comparative analysis from different literatures. Finally, the challenges in single-stage wireless power transfer (SSWPT) were addressed and the future scopes were discussed which provides the future research directions.

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Section: Hybrid Chargingmentioning

confidence: 99%