Design of a 300 kW Partial Power Processing Based DC-DC Converter for Electric Vehicles Extreme Fast Charging Stations

Guo, Boling; Zhang, Xin; Zhang, Zhengqing; Ma, Hui; Jin, Xiang; Wang, Yongmao

doi:10.1109/peac56338.2022.9959484

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…Hence, the proposed converter is capable of feeding the load with full power, while processing only a fraction of it. Several PPC applications have operating points at which the level of the bias ratio is in similar ranges [21,[31][32][33]. Figure 8 also shows the behaviour of a Type II PPC in the same operating range.…”

Section: Partial Power Converter Analysismentioning

confidence: 99%

Transformerless partial power converter topology for electric vehicle fast charge

Pesantez,

Renaudineau,

Rivera

et al. 2023

IET Power Electronics

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Increasing the power rating of electric vehicles (EV) fast charging stations to reduce charging times is considered critical to accelerate the adoption of electric vehicles. Besides increasing the power, other drivers pushing the development of EV fast chargers include the improvement of efficiency and reliability. Partial power converters (PPC) have emerged as an interesting option for some of the power converter stages in fast charging stations due to their potential to increase efficiency and power rating. However, some PPCs operate as switched autotransformers by using high frequency (HF) isolation transformers but without providing galvanic isolation. This is a drawback due to cost, size and losses introduced by the transformer. This paper presents a transformerless DC–DC Type I step‐up PPC for a DC–DC regulation converter for EV fast charging stations. The proposed converter replaces the transformer commonly used in Type I PPC by an impedance network, resulting in a more efficient, cheaper, and less complex converter option. This concept is verified through simulations and experimentally validated with a laboratory prototype.

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Section: Partial Power Converter Analysismentioning

confidence: 99%