Common Grounded Wide Voltage-Gain Range DC–DC Converter With Zero Input Current Ripple and Reduced Voltage Stresses for Fuel Cell Vehicles

Bi, Huakun; Mu, Zonglei; Chen, Yu

doi:10.1109/tie.2022.3172767

Cited by 11 publications

(4 citation statements)

References 31 publications

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“…Applying the inductor volt-second balance principle on Equations (22), (26), and (28), the voltage gain of the proposed converter is derived as follows:…”

Section: Mode -1mentioning

confidence: 99%

“…Furthermore, the capacitor's voltage rating gradually increases when transitioning from the input side to the output side, and the current rating of the input side inductor is higher than the classical switched inductor-based converter. For fuel cell vehicle applications [26], a novel non-isolated DC-DC converter incorporating an active switched-inductor cell and a switched-capacitor (SC) cell is presented. This converter offers advantages such as zero input current ripple, low voltage stresses across power semiconductors, and a common ground structure.…”

Section: Introductionmentioning

confidence: 99%

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Multistage converter with reduced switch voltage stress and diode current stress

Bhaskar,

Subramaniam,

Almakhles

et al. 2024

IET Power Electronics

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The utilization of switched inductors, involving parallel charging and series discharging of inductors, is extensively embraced in diverse DC–DC converters for attaining high voltage gain; nevertheless, the stress on switch voltage and diode current escalates considerably with an increased count of inductors integrated into the switched inductors network. In the classical multistage switched inductor converter, the switch voltage aligns with the output voltage, and the diode experiences a high current as the number of stages increases. This research recommends a DC–DC multistage converter for energy conversion and high voltage gain with low stress. In this paper, a novel multistage switched inductor converter is introduced and designed to attain higher voltage gain while mitigating the stresses on switch voltage and diode current. The proposed circuit is created by replacing the standard multistage switched inductor converter's possible diodes with power switches. All of the switching devices are connected in such a way that the output voltage and input current are shared by all of the switches and diodes, respectively. As a consequence, the voltage stress on switches and the current stress on diodes are comparatively low, resulting in a high efficiency compared to a typical multistage switched inductor converter. It's interesting to note that the proposed converter and a typical multistage switched inductor converter both require the same amount of components. Different operation modes, analysis, a non‐ideal model, and a comparison of the suggested and recently constructed converters are discussed. The effectiveness and performance of the circuit are validated experimentally.

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“…Applying the inductor volt-second balance principle on Equations (22), (26), and (28), the voltage gain of the proposed converter is derived as follows:…”

Section: Mode -1mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multistage converter with reduced switch voltage stress and diode current stress

Bhaskar,

Subramaniam,

Almakhles

et al. 2024

IET Power Electronics

View full text Add to dashboard Cite

show abstract

“…There are some ripple-free converters were reported in several studies. [13][14][15][16][17][18] They all have certain limitations gain is quite low (∼5 times) and the utilization factor is also low.…”

Section: Introductionmentioning

confidence: 99%

“…A ripple in the input current can also affect the lifespan of the RES application. There are some ripple‐free converters were reported in several studies 13–18 . They all have certain limitations gain is quite low (∼5 times ) and the utilization factor is also low.…”

Section: Introductionmentioning

confidence: 99%

A new soft‐switching high step‐up DC–DC converter with low voltage stress

Sharma,

Hasanpour,

Kumar

2024

Energy Science & Engineering

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This paper proposes a new high step‐up DC–DC converter with zero input current ripple for renewable energy sources applications, such as fuel cells. In this topology, a coupled inductor and a multiplier cell are used to achieve high voltage gains. The power switch in this proposed circuit turns on under zero voltage switching conditions. An active switch limits the maximum voltage stress across the main power switch. Moreover, all circuit diodes of the converter turn off without a reverse recovery problem. A detailed analysis of a high‐gain step‐up DC–DC converter is studied along with improved efficiency. The ripple cancellation of the input stage of the converter is done by adding an input inductor and capacitor. By including the parasitic elements, an approximate loss analysis was performed in PSIM and found the maximum efficiency of ∼96% in simulation and ∼94% in hardware for 200 W power level design for 30 V input voltage. Later on, the converter laboratory hardware prototype can be developed with selected parameters, and finally, experimental results have been used to validate the properties of the converter.

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Experimental study of a fuel cell stack performance operating with a power electronics converter with high-frequency current ripple

Valdez-Resendiz,

Rosas-Caro,

Sanchez

et al. 2024

International Journal of Hydrogen Energy

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Common Grounded Wide Voltage-Gain Range DC–DC Converter With Zero Input Current Ripple and Reduced Voltage Stresses for Fuel Cell Vehicles

Cited by 11 publications

References 31 publications

Multistage converter with reduced switch voltage stress and diode current stress

Multistage converter with reduced switch voltage stress and diode current stress

A new soft‐switching high step‐up DC–DC converter with low voltage stress

Experimental study of a fuel cell stack performance operating with a power electronics converter with high-frequency current ripple

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