A Direct Switch-Mode Three-Phase AC to DC Rectifier with High-Frequency Isolation for Fast EV Battery Chargers

Pool-Mazun, Erick I.; Sandoval, Jose Juan; Enjeti, P.N.; Pitel, I.J.

doi:10.1109/apec.2019.8722237

Cited by 9 publications

(3 citation statements)

References 19 publications

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“…An advanced EV charger topology proposed in [93], and shown below in Figure 19, employs a direct AC to DC rectifier using a high frequency solid state transformer. This approach has high power density and efficiency, avoids the use of a DC link capacitor, provides robust control, and high-power quality.…”

Section: Fast-charging Power Electronicsmentioning

confidence: 99%

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Advanced Electric Vehicle Fast-Charging Technologies

et al. 2019

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Negative impacts from the dominant use of petroleum-based transportation have propelled the globe towards electrified transportation. With this thrust, many technological challenges are being encountered and addressed, one of which is the development and availability of fast-charging technologies. To compete with petroleum-based transportation, electric vehicle (EV) battery charging times need to decrease to the 5–10 min range. This paper provides a review of EV fast-charging technologies and the impacts on the battery systems, including heat management and associated limitations. In addition, the paper presents promising new approaches and opportunities for power electronic converter topologies and systems level research to advance the state-of-the-art in fast-charging.

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Section: Fast-charging Power Electronicsmentioning

confidence: 99%

“…Work needs to be performed to find the optimal combination of battery dissipation and charging; especially as newer Li-ion battery technologies are Figure 19. An EV direct switch-mode AC to DC rectifier with high frequency isolation [93].…”

Section: Battery System Modelingmentioning

confidence: 99%

Advanced Electric Vehicle Fast-Charging Technologies

et al. 2019

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“…However, traditional dual-stage line-frequency isolated three-phase converters have a large volume, high costs, high levels of noise pollution, and the necessity for electrolytic capacitances between the stages, which is challenging to apply to in-vehicle environments. An alternative dual-stage high-frequency isolation approach utilizing a high-frequency transformer (HFT) in place of a line-frequency transformer offers improved power density and operational efficiency [15,16]. Still, it requires a large-capacity capacitance to maintain the stability of the intermediate DC link, which not only increases the system cost but also affects the converter's operational efficiency.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Sun,

Wang,

2024

Electronics

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To solve the problems of large switching losses and the need for large-capacity electrolytic capacitances in three-phase DC/AC on-board chargers for vehicle-to-grid (V2G) applications, this paper proposes a single-stage bidirectional high-frequency isolated converter that eliminates the need for large-capacity capacitances. Combined with the proposed modulation scheme, it can theoretically reduce the switching loss by about two-thirds with the three-phase converter compared with the conventional modulation scheme, improving the converter’s operating efficiency and power density. Firstly, based on the characteristics of the proposed topology, a hybrid modulation scheme is proposed, which combines a phase-shift modulation scheme based on double modulation waves and a sawtooth carrier with a 1/3 modulation scheme, and the theoretical feasibility of the hybrid modulation scheme is verified using a mathematical modeling equation. Secondly, this paper provides a detailed analysis of the four operating modes of the two full-bridge circuits and the commutation process of the three-phase converter within 1/6 of the fundamental frequency cycle (P1 modulation interval). Then, the control strategy is given for the constant-current and constant-voltage charging and constant-current discharging for electric vehicle batteries. Finally, simulation results verify the correctness of the proposed topology and modulation scheme in vehicle–grid interaction.

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Comprehensive Updates on Various Fast Charging Technology for Electric Vehicles

Yadav

Vadhera

2021

Lecture Notes in Electrical Engineering

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A Direct Switch-Mode Three-Phase AC to DC Rectifier with High-Frequency Isolation for Fast EV Battery Chargers

Cited by 9 publications

References 19 publications

Advanced Electric Vehicle Fast-Charging Technologies

Advanced Electric Vehicle Fast-Charging Technologies

Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter

Comprehensive Updates on Various Fast Charging Technology for Electric Vehicles

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