Multi-port multi-cell DC/DC converter topology for electric vehicle's power distribution networks

Schäfer, Jannik; Bortis, Dominik; Kolar, Johann W.

doi:10.1109/compel.2017.8013326

Cited by 36 publications

(26 citation statements)

References 4 publications

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“…To understand the involvement of power electronics at various levels in an electric vehicle power system, Fig. 2 shows a block diagram of a typical electrical power system architecture in EV/HEV, including the major power electronic systems that can be found in an electric-based vehicle [23], [24]. Here, the high-voltage (HV) dc bus is typically in the range of 250-450 V dc depending on the utilized battery voltage, and the low-voltage (LV) dc bus is rated at 12/48 V dc .…”

Section: A Power Conversion Architecture In Ev/hevmentioning

confidence: 99%

Reliability of Power Electronic Systems for EV/HEV Applications

et al. 2021

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The electrification of the transportation sector is moving on at a fast pace. All car manufacturers have strong programs to electrify their car fleet to fulfill the demands of society and customers by offering carbon-neutral technologies to bring goods and persons from one location to another. Power electronics technology is, in this evolution, essential and also in a rapid development technology-wise. Some of the introduced technologies are quite mature, and the systems designed must have high reliability as they can be quite complicated from an electrical perspective. Therefore, this article focuses on the reliability of the used power electronic systems applied in electric vehicles (EVs) and hybrid EVs (HEVs). It introduces the reliability requirements and challenges given for the power electronics applied in EV/HEV applications. Then, the advances in power electronic components to address the reliability challenges are introduced as they individually contribute to the overall system reliability. The reliability-oriented design methodology is also discussed, including two examples: an EV onboard charger and the drive train inverter. Finally, an outlook in terms of research opportunities in power electronics reliability related to EV/HEVs is provided. It can be concluded that many topics are already well handled in terms of reliability, but issues related to complete new technology introduction are important to keep the focus on.

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Section: A Power Conversion Architecture In Ev/hevmentioning

confidence: 99%

Reliability of Power Electronic Systems for EV/HEV Applications

et al. 2021

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“…Finally, simulation results will be provided confirming the validity of the algorithm. Jannik Schäfer [4] proposes a novel multi-port multi-cell (MPMC) topology, which allows to overcome the arising design challenges for converter systems in applications with highly different input and output voltage levels. Among other advantages, the MPMC topology reduces the cell-internal port voltage ratios, and therefore leads to beneficial characteristic impedances of the converter ports.…”

Section: Abstract Literature Viewmentioning

confidence: 99%

Modeling and Control of a Multiport Converter based EV Charging Station with PV and Battery

Ramprasanth¹

2021

IJMTST

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As an environmental friendly vehicle, the increasing number of electrical vehicles (EVs) leads to a pressing need of widely distributed charging stations, especially due to the limited on-board battery capacity. However, fast charging stations, especially super-fast charging stations may stress power grid with potential overload at peaking time, sudden power gap and voltage sag. This project discusses the implementation and modeling of space vector modulation to multiport converter based EV charging station integrated with PV power generation, and battery energy storage system. In this paper, the control scheme and combination of PV power generation, EV charging station, and battery energy storage (BES) provides improved stabilization including power gap balancing, peak shaving and valley filling, and voltage sag compensation. As a result, the influence on power grid is reduced due to the matching between daily charging demand and adequate daytime PV generation. Simulation results are presented to confirm the benefits at different modes of this proposed multiport EV charging circuits with the PV-BES configuration with SVM technique. Furthermore, SiC devices are employed to the EV charging station to further improve the efficiency.

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“…Other configurations, which can connect multiple single-phase TAB converters, can also be applied to interconnect MVDC and LVDC, as shown in Figure 13 [46][47][48]. It can connect two ports in series and one port in parallel to connect two MVDC grids and one LVDC grid, as shown in Figure 13a.…”

Section: Connection Of Medium Voltage Grid and Low Voltage Gridmentioning

confidence: 99%

Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems

Pham

Wãda

2020

Energies

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Renewable energy systems and electric vehicles (EVs) are receiving much attention in industrial and scholarly communities owing to their roles in reducing pollutant emissions. Integrated energy systems (IES), which connect different types of renewable energies and storages, have become common in many applications, such as the grid-connected photovoltaic (PV) and battery systems, fuel cells and battery/supercapacitor in EVs. The advantages of all energy sources are maximized by utilizing connection and control strategies. Because many storage systems and household loads are mainly direct current (DC) types, the DC grid has considerable potential for increasing the efficiency of distribution grids in the future. In IES and future DC grid systems, the triple active bridge (TAB) converter is an isolated bidirectional DC-DC converter that has many advantages as a core circuit. Therefore, this paper reviews the characteristics of the TAB converter in current applications and suggests next-generation applications. First, the characteristics and operation modes of the TAB converter are introduced. An overview of all current applications of the TAB converter is then presented. The advantages and challenges of the TAB converter in each application are discussed. Thereafter, the potential future applications of the TAB converter with an adaptable power transmission design are presented.

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Multi-port multi-cell DC/DC converter topology for electric vehicle's power distribution networks

Cited by 36 publications

References 4 publications

Reliability of Power Electronic Systems for EV/HEV Applications

Reliability of Power Electronic Systems for EV/HEV Applications

Modeling and Control of a Multiport Converter based EV Charging Station with PV and Battery

Applications of Triple Active Bridge Converter for Future Grid and Integrated Energy Systems

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