Onboard Charging DC/DC Converter of Electric Vehicle Based on Synchronous Rectification and Characteristic Analysis

Tao, Haijun; Zhang, Guopeng; Zhang, Zheng

doi:10.1155/2019/2613893

Cited by 13 publications

(13 citation statements)

References 21 publications

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“…Currently, high switching frequencies at the 10 kHz DC-DC converter are widely used . Despite many merits of high switching frequency such as less volume, it has many problems such as increasing EMI, switching loss, and less efficiency (Tao et al, 2019). To overcome these problems, softswitching technologies are preferred which are ZVS, ZCS, and LLC (Chen, 2011;Hariya et al, 2016).…”

Section: Dc-dc Converter Topologiesmentioning

confidence: 99%

“…Off-board charging is called fast charging, and it charges the vehicle in a few hours. In an off-board charging method, a DC-DC converter is placed in a charging station that provides DC power to the vehicles through cables (Tao et al, 2019). It is not limited in size and weight but it needs added cost for infrastructure to implement the number of charging station (Ghorbal et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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A review on unidirectional converters for on-board chargers in electric vehicle

Shanmugam

Sudhakar

2022

Front. Energy Res.

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Transport is a vital sector for achieving sustainable development. The evolution of the electric vehicle is subject to the charging time, accessibility, and facility. On-board chargers are broadly used in the battery-electric and plug-in-electric fleets due to their easy installation and low cost. Also, it must be powerful and extremely efficient because of the constrained interior area and quick charging times. The minimization of hardware requirements and ease of interconnection problems are benefits of unidirectional charging. This review article presents an overview of charging levels, standards of chargers, and various topologies. On-board chargers pose a higher-power rating that reduces the anxiety of charging time and improves the charging facility on level-1 and level-2 grid supply. Unidirectional chargers reduce the charger size while other two-stage chargers pose a higher charging rate with various topologies. Finally, emerging charging trends in off-board charging, inductive charging, technology about vehicle-to-grid, wide-bandgap devices, and application of renewable energy uses are addressed.

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Section: Dc-dc Converter Topologiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A review on unidirectional converters for on-board chargers in electric vehicle

Shanmugam

Sudhakar

2022

Front. Energy Res.

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“…[5] is poor in terms design details for the OBC device, control algorithms, and thermal analysis. The authors of [6] present an interesting design study based on MBD approach followed by bench validation of control techniques for a bidirectional OBC. This study is comparable to ours in terms of the analysis of electrical behaviour, but also in that paper an analysis of the thermal behaviour based on dynamic modelling is completely missing, which we present instead.…”

Section: State Of the Art On Obc Modelling Simulation And Controlmentioning

confidence: 99%

Electro-Thermal Model-Based Design of Bidirectional On-Board Chargers in Hybrid and Full Electric Vehicles

Dini

Saponara

2021

Electronics

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In this paper, a model-based approach for the design of a bidirectional onboard charger (OBC) device for modern hybrid and fully electrified vehicles is proposed. The main objective and contribution of our study is to incorporate in the same simulation environment both modelling of electrical and thermal behaviour of switching devices. This is because most (if not all) of the studies in the literature present analyses of thermal behaviour based on the use of FEM (Finite Element Method) SWs, which in fact require the definition of complicated models based on partial derivative equations. The simulation of such accurate models is computationally expensive and, therefore, cannot be incorporated into the same virtual environment in which the circuit equations are solved. This requires long waiting times and also means that electrical and thermal models do not interact with each other, limiting the completeness of the analysis in the design phase. As a case study, we take as reference the architecture of a modular bidirectional single-phase OBC, consisting of a Totem Pole-type AC/DC converter with Power Factor Correction (PFC) followed by a Dual Active Bridge (DAB) type DC/DC converter. Specifically, we consider a 7 kW OBC, for which its modules consist of switching devices made with modern 900 V GaN (Gallium Nitrade) and 1200 V SiC (Silicon Carbide) technologies, to achieve maximum performance and efficiency. We present a procedure for sizing and selecting electronic devices based on the analysis of behaviour through circuit models of the Totem Pole PFC and DAB converter in order to perform validation by using simulations that are as realistic as possible. The developed models are tested under various operating conditions of practical interest in order to validate the robustness of the implemented control algorithms under varying operating conditions. The validation of the models and control loops is also enhanced by an exhaustive robustness analysis of the parametric variations of the model with respect to the nominal case. All simulations obtained respect the operating limits of the selected devices and components, for which its characteristics are reported in data sheets both in terms of electrical and thermal behaviour.

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“…Therefore, we first investigated the characteristics of the buck converter. For a typical buck converter, the inductor current ripple is determined by the specified voltage, frequency, and duty ratio [21]. Figure 3 shows the current ripple flowing through the inductor and the voltage ripple of the output voltage.…”

Section: Multi-level Charging System For Pmds a Hardware Descrimentioning

confidence: 99%

Multi-Level DC/DC Converter for E-Mobility Charging Stations

et al. 2020

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The interest in electric-powered transportation has been increased because of problems such as depletion of fossil fuel resources and environmental issues caused by internal combustion engines. The market for various kinds of small E-mobility devices (EMDs), such as electric vehicles (EVs), E-bikes, segways, and mini-boards has been growing rapidly. Of these, the distribution of the small electric vehicles called personal mobility devices (PMDs), which can address problems such as traffic issues and environmental pollution, is expected to gain momentum. However, unlike the widely used charging stations for EVs, charging systems for PMDs are insufficient. The large size of dedicated PMD charging adapters makes them inconvenient to transport. Therefore, to make PMDs more attractive, it is necessary to deploy charging stations that can charge all types of PMDs. The present study proposes a new charging system that can respond to the needs of PMDs having various voltages and implement low charging current ripple. The proposed multi-level charging system can share power by subdividing the power supply to handle the charging requirements of various PMDs. In order to verify the validity of the proposed charging system, we performed simulations and conducted experiments by building a prototype charging system. INDEX TERMS Electric vehicles (EVs), dc/dc converter, personal mobility devices (PMDs), multi-level charging system, E-mobility.

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Onboard Charging DC/DC Converter of Electric Vehicle Based on Synchronous Rectification and Characteristic Analysis

Cited by 13 publications

References 21 publications

A review on unidirectional converters for on-board chargers in electric vehicle

A review on unidirectional converters for on-board chargers in electric vehicle

Electro-Thermal Model-Based Design of Bidirectional On-Board Chargers in Hybrid and Full Electric Vehicles

Multi-Level DC/DC Converter for E-Mobility Charging Stations

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