Design and Implementation of a Reconfigurable Phase Shift Full-Bridge Converter for Wide Voltage Range EV Charging Application

Lyu, Dingsihao; Soeiro, Thiago Batista; Bauer, Pavol

doi:10.1109/tte.2022.3176826

Cited by 30 publications

(16 citation statements)

References 37 publications

(49 reference statements)

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“…Under the steady-state condition of the R3L-DAB converter, the average value of current through the leakage inductance is zero and is given by (10). Since the current through the inductor is half-wave symmetric, the condition shown in (11) is satisfied.…”

Section: Steady-state Analysismentioning

confidence: 99%

A 15 kW Wide-Input Reconfigurable Three-Level DAB Converter for On-Board Charging of 1.25 kV Electric Vehicle Powertrains

Pradhan,

Shah,

Hassan

et al. 2024

IEEE Trans. Transp. Electrific.

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The demand to reduce charging times and runtime losses in electric vehicles has created a push to increase battery pack's voltage level. 800 V class vehicles in production are approaching the 1 kV voltage limit of the Combined Charging System (CCS) connector. New fast charging standards such as ChaoJi (CHAdeMO 3.0) and Megawatt Charging System (MCS) have voltages defined up to 1.5 kV and 1.25 kV, respectively. The SAE J3068 standard, focused on 3-Φ AC charging, recommends compatibility from 208/120Y to 600/347Y, resulting in a wide voltage variation of the power factor correction (PFC) stage's DC link. This paper proposes a reconfiguration method of a neutralpoint clamped (NPC) converter in a three-level dual active bridge (DAB) converter to accommodate the wide voltage swing. The reconfigurable three-level DAB converter (R3L-DAB) topology is introduced, and its modes of operation are presented. The steady-state analysis and its soft-switching criterion are discussed. A power loss model and design methodology are established to choose the switching frequency (fsw), turns ratio (n), and leakage inductance (L k ). Finally, the experimental results of a 15 kW R3L-DAB converter, with a power density of 3.25 kW/L and peak efficiency of 97.32% are presented.

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Section: Steady-state Analysismentioning

confidence: 99%

A 15 kW Wide-Input Reconfigurable Three-Level DAB Converter for On-Board Charging of 1.25 kV Electric Vehicle Powertrains

Pradhan,

Shah,

Hassan

et al. 2024

IEEE Trans. Transp. Electrific.

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show abstract

“…These converters offer distinct advantages in terms of their ability to deliver higher output voltages while minimizing power loss. Various capabilities are extended for conductive charging by incorporating suitable methodologies to provide continuous load current, reduce switching stress on the converter switches, bidirectional capability [35], increased current capability [36], combined slow and fast charging [37], improved power quality [38], extended output range [39,40], high current density [41], wide voltage operation [42], input voltage-to-output current gain property [43], and other functions. Table 5.…”

Section: A Wired 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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“…Different from the re-configurable converters in refs. [28][29][30], the proposed DC-DC converter is applied similar high low switching frequency ( f s ) modulation as ref. [31].…”

Section: Dc-dc Converter-modified Re-configurable Half-bridgementioning

confidence: 99%

“…A re‐configurable phase‐shift full bridge for wide output voltage BC is implemented in ref. [29]. An extensional version using four transformers with switch networks and diode rectifiers is presented [30].…”

Section: Introductionmentioning

confidence: 99%

A new modulation strategy on isolated battery charger with wide input and output voltage range

Jou

Chen

Wu³

et al. 2023

IET Power Electronics

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A new wide voltage operation range isolated battery charger, which is composed of an asymmetric T‐type AC–DC power rectifier and a modified re‐configurable half bridge DC–DC power converter, is proposed in this paper. The asymmetric T‐type rectifier adopts different modulation strategies under different AC bus voltage amplitudes and different battery voltages for increasing power conversion efficiency. As the isolated DC–DC power stage, a modified re‐configurable half bridge converter applies a three‐winding transformer to achieve a wide output operation range. The proposed battery charger operates over a wide AC input voltage range and wide DC output voltage range. A 3.2 kW hardware battery charger prototype is built to adapt AC voltage between 85 and 265 V. Both constant current and constant voltage modes are implemented experimentally to charge the battery up to 6.5 A from 50 to 500 V. The experimental results prove that the proposed asymmetric T‐type rectifier adopts different modulation strategies under different AC bus voltage amplitudes and different battery voltages can increase the power conversion efficiency, the proposed DC–DC converter can output the DC voltage from 50 to 500 V and the proposed battery charger can achieve around 94% efficiency.

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Design and Implementation of a Reconfigurable Phase Shift Full-Bridge Converter for Wide Voltage Range EV Charging Application

Cited by 30 publications

References 37 publications

A 15 kW Wide-Input Reconfigurable Three-Level DAB Converter for On-Board Charging of 1.25 kV Electric Vehicle Powertrains

A 15 kW Wide-Input Reconfigurable Three-Level DAB Converter for On-Board Charging of 1.25 kV Electric Vehicle Powertrains

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

A new modulation strategy on isolated battery charger with wide input and output voltage range

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