Bidirectional isolated AC-DC converter for electric vehicles multifunctional chargers

Ramos, Leonardo Adriano; Mezaroba, Marcello

doi:10.1109/icit.2018.8352455

Cited by 2 publications

(2 citation statements)

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“…The curves in Fig. 6 The vertical distance difference between the curves of both converters for the same M value is the effective loss of the duty cycle defined in (28), whose graphical result is shown in Fig. 6(a).…”

Section: (B)mentioning

confidence: 99%

“…The study by [27] uses a topology derived from the interleaved half-bridge converter to be isolated bi-directionally, and the power transfer occurs through the phase-shift delay between the primary and secondary arms of the converter. Although the study's main objective is not a reduction in ripple in the structure of [27], it was analyzed by [28], who changed the topology so that it could be used in EV battery charging systems, which are bidirectional and isolated. This topology, also presented by [29], seeks to obtain power decoupling and output voltage control through phase-shift control.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Double-Half-Bridge Rectifier With Single-Stage and Power Decoupling

Mayer,

Badin

2023

IEEE Access

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Several power decoupling techniques have been studied in the specialized literature to reduce or eliminate the ripple at 120Hz intrinsic to the nature of single-phase AC-DC converters. Among these techniques are the active decoupling circuits, which insert new switches and passive elements in the circuit to increase costs and losses in the converters. The complete single stage (CSS) of power decoupling is defined in this study. The switches responsible for controlling the power factor in the proposed converter also control the output voltage and the ripple at 120 Hz using the phase-shift technique. Thus, lower-value capacitors can be used, allowing the replacement of the widely used electrolytic capacitors with film capacitors, which have a long useful life compared to the former. In addition, the proposed converter is isolated and has high efficiency. Simulation and experimental results are presented for a 1 kW prototype with an efficiency of up to 93%, showing that power decoupling is obtained, and the CSS topology definition can be incorporated into the literature.INDEX TERMS Single-phase AC-DC converter, power factor correction, integrated power decoupling, single-stage converter, ripple power, phase-shift control.

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Section: (B)mentioning

confidence: 99%