Analysis and Improvement of the Effect of Distributed Parasitic Capacitance on High-Frequency High-Density Three-Phase Buck Rectifier

Chen, Qiang; Xu, Jianping; Wang, Lei; Huang, Rui; Ma, Hongbo

doi:10.1109/tpel.2020.3035264

Cited by 18 publications

(6 citation statements)

References 28 publications

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“…The distributed parasitic capacitance of the high-density three-phase buck converters is a major challenge in high-frequency operation which lead to input current distortion and an increase in THD under light load condition. The modified three-phase buck converter has been presented in [218] to reduce the impact of distributed parasitic capacitance between the DC link output and the system ground. Moreover, high step-down voltage gain may appear when the multiple EVs charging due to variations in the range of the EV battery.…”

Section: ) Buck-type Rectifiermentioning

confidence: 99%

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

et al. 2023

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Electric Vehicles (EVs) are projected to be one of the major contributors to energy transition in global transportation due to their rapid expansion. High-level of EVs integration into the electricity grid will introduce many challenges for the power grid planning, operation, stability, standards, and safety. Therefore, the wide-scale adoption of EVs imposes research and development of charging systems and EV supply equipment (EVSE) to achieve expected charging solutions for EV batteries as well as to improve ancillary services. Analysis of the status of EV charging technologies is important to accelerate EV adoption with advanced control strategies to discover a remedial solution for negative impacts and to enhance desired charging efficiency and grid support. This paper presents a comprehensive review of EV charging technologies, international standards, the architecture of EV charging stations, and the power converter configurations of EV charging systems. The charging systems require a dedicated converter topology, a control strategy, compatibility with standards, and grid codes for charging and discharging to ensure optimum operation and enhance grid support. An overview of different charging systems in terms of onboard and offboard chargers, AC-DC and DC-DC converter configuration, and AC and DC-based charging station architectures are evaluated. In addition, recent charging systems which are integrated with renewable energy sources are presented to identify the power train of modern charging stations. Finally, future trends and challenges in EV charging and grid integration issues are summarized as the future direction of the research.INDEX TERMS Electric vehicle, charging configuration, grid integration, international standards, onboard and offboard charger, power converters.

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Section: ) Buck-type Rectifiermentioning

confidence: 99%

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

et al. 2023

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“…Another issue for TPBR while operating in high frequency is caused by distributed parasitic capacitances between the dc link output and the ground, leading to input current distortion especially at light load condition. In study [55], authors have introduced a novel structure to suppress the high frequency input current and thereby, the input THD is reduced. In general, high stepdown voltage gain is preferred, if multiple EVs available in the road are considered including their variation in terms of battery range.…”

Section: A Three-phase Buck Type Rectifiermentioning

confidence: 99%

A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications

et al. 2022

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Wide-scale adoption and projected growth of electric vehicles (EVs) necessitate research and development of power electronic converters to achieve high power, low-cost, and reliable charging solutions for the EV battery. This paper presents a comprehensive review of EV off-board chargers that consist of acdc and dc-dc power stages from the power network to the EV battery. Although EV chargers are categorized into two types, namely, on-board and off-board chargers, it is essential to utilize off-board chargers for dc fast and ultra-fast charging so that volume and weight of EV can be reduced significantly. Here, we discuss the state-of-the-art topologies and control methods of both ac-dc and dc-dc power stages for off-board chargers, focusing on technical details, ongoing progress, and challenges. In addition, most of the recent multiport EV chargers integrating PV, energy storage, EV, and grid are presented. Moreover, comparative analysis has been carried out for the topologies and the control schemes of ac-dc rectifiers, dc-dc converters, and multiport converters in terms of architecture, power and voltage levels, efficiency, bidirectionality, control variables, advantages, and disadvantages which can be used as a guideline for future research directions in EV charging solutions.INDEX TERMS Charging stations, converter control, converter topologies, DC fast chargers, electric vehicle (EV), EV fast chargers, multilevel AC-DC converter, multiport converter, off-board charger.

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“…The bidirectional voltage source inverter (VSI) shown in Figure 10 has been the most commonly used converter in the literature as the gridinterfaced converter [19]. Depending on the output voltage, this converter can operate as a step-down (buck) [28][29][30][31][32][33][34][35][36][37][38][56][57][58] or (boost) [43][44][45] converter. However, the conventional VSI suffers from low efficiency.…”

Section: Ev-interfaced Converter Topologiesmentioning

confidence: 99%

Power Converter Topologies for Grid-Tied Solar Photovoltaic (PV) Powered Electric Vehicles (EVs)—A Comprehensive Review

2022

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The transport sector generates a considerable amount of greenhouse gas (GHG) emissions worldwide, especially road transport, which accounts for 95% of the total GHGs. It is commonly known that Electric vehicles (EVs) can significantly reduce GHG emissions. However, with a fossil-fuel-based power generation system, EVs can produce more GHGs and therefore cannot be regarded as purely environmentally friendly. As a result, renewable energy sources (RES) such as photovoltaic (PV) can be integrated into the EV charging infrastructure to improve the sustainability of the transportation system. This paper reviews the state-of-the-art literature on power electronics converter systems, which interface with the utility grid, PV systems, and EVs. Comparisons are made in terms of their topologies, isolation, power and voltage ranges, efficiency, and bi-directional power capability for V2G operation. Specific attention is devoted to bidirectional isolated and non-isolated EV-interfaced converters in non-integrated architectures. A brief description of EV charger types, their power levels, and standards is provided. It is anticipated that the studies and comparisons in this paper would be advantageous as an all-in-one source of information for researchers seeking information related to EV charging infrastructures.

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Analysis and Improvement of the Effect of Distributed Parasitic Capacitance on High-Frequency High-Density Three-Phase Buck Rectifier

Cited by 18 publications

References 28 publications

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

Review of Electric Vehicle Charging Technologies, Standards, Architectures, and Converter Configurations

A Comprehensive Review of Power Converter Topologies and Control Methods for Electric Vehicle Fast Charging Applications

Power Converter Topologies for Grid-Tied Solar Photovoltaic (PV) Powered Electric Vehicles (EVs)—A Comprehensive Review

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