Design and Control Method of 25kW High Efficient EV Fast Charger

Kim, Junmo; Lee, Jeong; Eom, Tea-Ho; Bae, Ki-Hoon; Shin, Minho; Won, Chung-Yuen

doi:10.23919/icems.2018.8549491

Cited by 16 publications

(9 citation statements)

References 7 publications

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“…Due to the restricted modulation vector, the range of achievable reactive power is narrow and depends on the output voltage (the range is -30° < Ø < 30° when the output voltage is higher than twice the peak input ac line-to-line voltage, and it is reduced to Ø = 0 if the output voltage is equal to the peak input ac line-to-line voltage). Reference [18] presents a 25 kW EV charger prototype with a single-switch Vienna rectifier and four parallel three-level DC/DC. In [19], a 20 kW SiC-based Vienna rectifier switching at 140 kHz is 98.6% efficient and features compact passive components.…”

Section: Unidirectional Ac/dc Convertersmentioning

confidence: 99%

Design and Development of a Constant Current Constant Voltage Fast Battery Charger for Electric Vehicles

Nasir¹

2021

Proceedings of ‏The 4th International Conference on Modern Research in Science, Engineering and Technology

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The issue of zero-emission mobility is one of the most topical, the electric vehicle market being in a continuous growth, which led to the development of new charging technologies. Unfortunately, limiting the autonomy of vehicles is a major problem, which can be solved, in a first phase, by developing fast charging technologies and developing an adequate infrastructure to serve the end user. This article comes in support of those mentioned, highlighting the limitations of the existing methods and proposing the design and development of a closed-loop DC-DC buck converter based battery charger for charging a plug-in electric vehicle using the constant-current and constant-voltage (CCCV) charging scheme. The motivation that led to the approach of this topic is presented in the introductory part, with emphasis on the extreme phenomena resulting from global warming, with direct involvement of the factors that lead to the burning and consumption of fossil fuels. The second chapter, very detailed and comprehensive, is dedicated to Three-phase Controlled Rectifier, starting with topologies, deepening the mathematical model, adopting the Voltage Oriented Control (VOC) strategy to control the three phase rectifier based on high performance direct-quadrature-coordinate controllers, ending with overall rectifier simulation, using MatLAB Simulink. The third chapter actually presents the simulation part, with emphasis on the related diagrams, presentation of parameters, highlighting the battery charge controller for CCCV charging and presentation of the final results. The final part is dedicated to the practical application itself, comprehensive and clear, as well as the whole work.

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Section: Unidirectional Ac/dc Convertersmentioning

confidence: 99%

Design and Development of a Constant Current Constant Voltage Fast Battery Charger for Electric Vehicles

Nasir¹

2021

Proceedings of ‏The 4th International Conference on Modern Research in Science, Engineering and Technology

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“…Level 3 charger, because of their rating powers, are usually installed outside the vehicle (off-board). Also for level 3 off-board charger a large amount of different solutions is studied in literature [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60][61][62]. Since it is mandatory to guarantee galvanic isolation between the AC supply circuit and the DC output circuit according to the IEC EN 61,851-23 standard, in this paragraph only isolated off-board charger have been presented.…”

Section: Off-board Chargermentioning

confidence: 99%

“…The most common unidirectional AC/DC converter used in off-board charging system is the Vienna rectifier [48][49][50].…”

Section: Unidirectional Ac/dc Convertermentioning

confidence: 99%

“…However, the main limitations are the restricted reactive power control and the need of a dc-link capacitor voltage balancing. In [48] the authors propose a 25 kW off-board charger prototype composed by a singleswitch Vienna rectifier, as depicted in Fig. 7, and four three level dc/dc modules parallel connected.…”

Section: Unidirectional Ac/dc Convertermentioning

confidence: 99%

“…The ac-dc stage is common to all the EV, in fact the output of the Cascade H Bridge (CHB) multilevel converter creates a unipolar common DC voltage bus at Fig. 7 Vienna rectifier scheme proposed in [48] Fig. 8 Dual active bridge scheme Fig.…”

Section: Architecturementioning

confidence: 99%

See 2 more Smart Citations

Electric Vehicles Charging Technology Review and Optimal Size Estimation

Brenna

Foiadelli

Leone

et al. 2020

J. Electr. Eng. Technol.

143

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Many different types of electric vehicle (EV) charging technologies are described in literature and implemented in practical applications. This paper presents an overview of the existing and proposed EV charging technologies in terms of converter topologies, power levels, power flow directions and charging control strategies. An overview of the main charging methods is presented as well, particularly the goal is to highlight an effective and fast charging technique for lithium ions batteries concerning prolonging cell cycle life and retaining high charging efficiency. Once presented the main important aspects of charging technologies and strategies, in the last part of this paper, through the use of genetic algorithm, the optimal size of the charging systems is estimated and, on the base of a sensitive analysis, the possible future trends in this field are finally valued.

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