High-efficiency 11 kW bi-directional on-board charger for EVs

Lee, Sangyoun; Lee, Wooseok; Lee, Jun-Young; Lee, Il-Oun

doi:10.1007/s43236-021-00344-3

Cited by 8 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is remarkable that when comparing the proposed design with state-of-the-art reference design from some of the main manufacturers (Table I), e.g. Wolfspeed [26] or ST [27], the proposed architecture achieves a significant improvement in power density. Furthermore, the same benefit can be obtained using ceramic capacitor technology or, by keeping the similar power density, lifetime can be much increased by using film capacitors.…”

Section: Implementation and Experimental Resultsmentioning

confidence: 99%

High Power Density On-Board Charger Featuring Power Pulsating Buffer

Sarnago,

Lucía

2024

IEEE Open J. Power Electron.

View full text Add to dashboard Cite

Power electronics plays a key role in electric vehicle technology in areas such as the battery charging and managing, dc distribution and motor drive systems, among others. There are, however, significant challenges to be addressed in terms of cost, performance, reliability and power density. This paper aims at proposing an improved on-board charger architecture taking advantage of a power pulsating buffer topology. The proposed architecture will enable to significantly reduce the dc-link capacitor size, enabling a change in its technology, and leading to a higher power density and higher reliability implementation. The proposed architecture is analyzed, its main design considerations are discussed and, finally, a 3.6-kW experimental prototype is designed and implemented to prove the feasibility of this proposal. As a conclusion, the proposed topology is recommended as a high-performance highpower-density OBC implementation for future EVs.

show abstract

Section: Implementation and Experimental Resultsmentioning

confidence: 99%

High Power Density On-Board Charger Featuring Power Pulsating Buffer

Sarnago,

Lucía

2024

IEEE Open J. Power Electron.

View full text Add to dashboard Cite

show abstract

“…Such a high demand combined with the strive for longer ranges and reduced charging time is pushing newer generations of EVs that implement higher battery capacities and charging rates. Consequently, new EV charging stations are needed to supply more power, more quickly than ever before [3], [4], [5].…”

Section: Introductionmentioning

confidence: 99%

“…Current WBG devices based on silicon carbide (SiC) or gallium nitride (GaN) power switches easily outperform those based on silicon (Si) in numerous applications, thanks to their higher voltage breakdown, higher switching speed and lower on-resistance. The design of EV power electronics converters in an example of a modern relevant application [4].…”

Section: Introductionmentioning

confidence: 99%

A Two-Stage DC-DC Isolated Converter for Battery-Charging Applications

Zanatta

Caldognetto

Biadene

et al. 2023

IEEE Open J. Power Electron.

View full text Add to dashboard Cite

This paper proposes and analyzes a two-stage dc-dc isolated converter for electric vehicle charging applications, where high efficiency over a wide range of battery voltages is required. The proposed conversion circuit comprises a first two-output isolation stage with CLLC resonant structure and a second two-input buck regulator. The transformer of the first stage is designed such that its two output voltages correspond, ideally, to the minimum and maximum expected voltage to be supplied to the battery. Then, the second stage combines the voltages provided by the previous isolation stage to regulate the output voltage of the whole converter. The first stage is always operated at resonance, with the only function of providing isolation and fixed conversion ratios with minimum losses, whereas the second stage allows output voltage regulation over a wide range of battery voltages. Overall, it is shown that the solution features high conversion efficiency over a wide range of output voltages. This paper comprehensively describes the solution, including modeling, analyses, design considerations for the main circuit components (e.g., magnetics, switches), and modulation choices. Experimental results are reported considering a converter module prototype rated 10 kW, input voltage 800 V, and output range 250 V to 500 V, employing silicon-carbide and gallium-nitride semiconductors.

show abstract

PI_BPNN controller for transient response improvement of LLC resonant converter

Kim

Chin

et al. 2023

J. Power Electron.

View full text Add to dashboard Cite

High-efficiency 11 kW bi-directional on-board charger for EVs

Cited by 8 publications

References 27 publications

High Power Density On-Board Charger Featuring Power Pulsating Buffer

High Power Density On-Board Charger Featuring Power Pulsating Buffer

A Two-Stage DC-DC Isolated Converter for Battery-Charging Applications

PI_BPNN controller for transient response improvement of LLC resonant converter

Contact Info

Product

Resources

About