Optimal Coils and Control Matching in Wireless Power Transfer Dynamic Battery Chargers for Electric Vehicles

Capua, Giulia Di; Femia, N.

doi:10.1109/access.2021.3129910

Cited by 4 publications

(2 citation statements)

References 30 publications

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“…where V p is the primary (source) voltage, I p and I s are currents of the primary and secondary coils, R p , R s , L p , L s are the resistances and inductances of the primary and secondary coils, C p , C s are the capacitances of primary and secondary compensation capacitors, respectively, M is the mutual inductance, ω is the angular frequency, and V m is the voltage induced in the secondary coil V m = −jωMI p , while R AC is the load resistance, representing the EV battery, seen from the AC side of the secondary (receiving) coil (Figures 1 and 2) [26].…”

Section: Coupling Coefficient and Efficiency Of A Wpt Systemmentioning

confidence: 99%

Analysis of Coil Systems with Non-Symmetrical Fe Backings for Electrical Vehicle Wireless Charging Applications

Lukočius,

Nakutis,

Vilkauskas

et al. 2024

Applied Sciences

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Wireless power transfer is a widely applied technology whose market and application areas are growing rapidly. It is considered to be a promising supplement to the conductive charging of electrical vehicles (EVs). Wireless charging provides safety, convenience, and reliability in terms of mitigating issues related to wiring, risk of tearing, trip hazards, and contact wear inherent to the conductive charging. A variety of coil structures have been researched for EV charging applications; however, most of them were of the symmetrical type. This work analyzes systems of coils possessing ferromagnetic backing with non-symmetrical geometries and compares them with the conventional symmetrical ones. Numerical FEM simulation was applied in the research. The numerical models were verified analytically and experimentally. The impact of air-gap length, longitudinal displacement, number of turns, and width of the ferrite bars on coupling factor was investigated. The results suggest that coil systems with non-symmetrical structures of ferromagnetic backings are a good alternative to the conventional symmetrical structures for wireless electrical vehicle charging applications.

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Section: Coupling Coefficient and Efficiency Of A Wpt Systemmentioning

confidence: 99%

Analysis of Coil Systems with Non-Symmetrical Fe Backings for Electrical Vehicle Wireless Charging Applications

Lukočius,

Nakutis,

Vilkauskas

et al. 2024

Applied Sciences

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show abstract

“…Static WPT can be installed at residential locations, parking stations, commercial buildings and shopping centers. In dynamic WPT [49]- [53], the charging while driving concept is applicable by laying a separate charging lane over which the moving vehicle can be charged. Since the vehicle is moving, misalignment becomes a major problem, which needs to be addressed by suitable compensation [89]- [91] to maximize the transfer efficiency.…”

Section: (B)mentioning

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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Design and Development of a 3.2 kW Wireless Battery Charger for an Electric Vehicle with a High-Frequency Full-Bridge Converter using ANSYS Simplorer

Ranjan

Ghosh

Alset³

et al. 2022

2022 International Virtual Conference on Power Engineering Computing and Control: Developments in Electric Vehicles and Energy

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Optimal Coils and Control Matching in Wireless Power Transfer Dynamic Battery Chargers for Electric Vehicles

Cited by 4 publications

References 30 publications

Analysis of Coil Systems with Non-Symmetrical Fe Backings for Electrical Vehicle Wireless Charging Applications

Analysis of Coil Systems with Non-Symmetrical Fe Backings for Electrical Vehicle Wireless Charging Applications

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

Design and Development of a 3.2 kW Wireless Battery Charger for an Electric Vehicle with a High-Frequency Full-Bridge Converter using ANSYS Simplorer

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