A Bidirectional Five-Level Buck PFC Rectifier With Wide Output Range for EV Charging Application

Jain, Anekant; Gupta, Krishna Kumar; Jain, Sushma; Bhatnagar, Pallavee

doi:10.1109/tpel.2022.3185239

Cited by 26 publications

(7 citation statements)

References 60 publications

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“…PFC rectifiers have applications in charging low-capacity lithium-ion batteries, such as those used in electronic devices, including mobile phones, which require high power density designs but are also needed for charging electric vehicle (EV) battery banks. Those converters used as on-board or off-board EV chargers can be unidirectional or bidirectional [ 13 , 14 , 15 , 16 ]. A review of single-phase unidirectional non-isolated PFC converters for onboard battery chargers can be found in [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, step-down PFC rectifiers are increasingly being used to achieve a wider control range for the output voltage and to reduce the step-down requirement in the DC–DC conversion stage, for example, in EV charging systems [ 31 ]. Their use results in DC–DC converters being built with low-voltage switches, leading to higher efficiency [ 15 ]. Step-down PFC rectifier systems are expected to provide an option for supplying DC distribution grids or also for charging EV batteries [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Phase Interleaved AC–DC Step-Down Converter with Power Factor Improvement

et al. 2023

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This paper presents the converter design of a single-phase non-isolated step-down controlled rectifier for power factor improvement and output voltage regulation. The converter consists of a full-bridge diode rectifier and a DC-DC interleaved buck converter of two or more switching cells that has an LC filter in its input. It is proposed that the interleaved switching cells operate in discontinuous conduction mode and the current through the input LC filter be continuous, avoiding switching frequency components to be injected into the grid. The controller, which has a simple structure and a small number of sensors, allows the system to achieve a high power factor. It also regulates the output voltage to a constant reference. An experimental prototype is built and tested to validate the analysis and proposed design. The closed-loop converter is evaluated both in a steady state and in transient conditions. At steady state, the converter achieves a power factor above 0.9 with a maximum of 45.4% THD at 110.1 W. The main contributions of this paper are guidelines for the design of the converter, open-loop analysis, and converter control.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Phase Interleaved AC–DC Step-Down Converter with Power Factor Improvement

et al. 2023

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“…The diode used as a replacement of switches in Sedaghati and Majareh 22 produces spikes in the output voltage waveform for low power factor load due to reverse current. The next advances in the MLI structures are based on the switched capacitor, which replaces the dc voltage sources by capacitor 23–25 . Although these topologies can reduce the number of voltage sources but complicate the control scheme and store high energy resulting in high power loss, 26 several topologies are introduced in the literature to overcome this issue with fewer switches to improve efficiency 27–29 .…”

Section: Introductionmentioning

confidence: 99%

“…The next advances in the MLI structures are based on the switched capacitor, which replaces the dc voltage sources by capacitor. [23][24][25] Although these topologies can reduce the number of voltage sources but complicate the control scheme and store high energy resulting in high power loss, 26 several topologies are introduced in the literature to overcome this issue with fewer switches to improve efficiency. [27][28][29] Researchers also compile and compare several latest presented MLI topologies with reduced component count.…”

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confidence: 99%

A novel design of basic module‐based multilevel inverter for symmetrical/asymmetrical sources

Gawhade

Ojha

2023

Circuit Theory & Apps

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SummaryMultilevel inverter is a practical power electronic design that has motivated a great deal of ever‐increasing interest. In this article, a new design of basic module‐based multilevel is proposed. The article conceptualized minimizing the number of power semiconductor devices, losses, and total blocking voltage and hence the cost. The proposed inverter structure consists of both a polarity generator and a level generator unit. To investigate the eminence of the proposed topology, an exhaustive comparative study with other existing topologies is presented. The proposed inverter can be utilized for both symmetrical and asymmetrical configurations. The extended cascaded structure of the proposed topology is discussed for generating a higher level of voltages and five algorithms for asymmetrical configuration are introduced to select input dc voltages. This article presents the operating principle, modulation strategy, total standing voltage calculation, cost function, and losses calculation. The efficacy of the proposed cascaded multilevel inverter has been substantiated experimentally. The proposed structure can be efficiently used in medium‐/high‐voltage applications like electrical drives as well as renewable energy resource‐based grid‐connected systems.

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“…A power factor correction multi-level (five voltage levels) active rectifier was proposed in [9] and offered, as an advantage, the possibility of using self-balanced capacitors. The paper presented, in detail, the operating principle for both G2V and V2G modes, the modulation strategy, closed-loop control, as well as the design characteristics.…”

mentioning

confidence: 99%