PFI-TT: Development of Single-Stage Power Modules for Modular Medium-Voltage Electric Vehicle Fast Chargers

PFI-TT：模块化中压电动汽车快速充电器单级功率模块的开发

• 批准号: 1827714
• 负责人: Srdjan Lukic
• 金额: $ 19.99万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-08-01 至 2021-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1827714&HistoricalAwards=false
• 关键词: PFI; TT; Development; Single; Stage

The broader impact/commercial potential of this PFI project is to provide an electric vehicle charger that is at least 10 times smaller than existing EV charging systems and wastes half as much power during the charging process. This advanced is based on the proposed solid-state transformer (SST) technology, which makes use of a high frequency magnetics to shrink the system size and improve efficiency. The SST connects directly to the medium voltage distribution system, eliminating bulky step-down transformers, and eliminating power conversion stages. A smaller, more efficient EV charger translates into cheaper system installation, higher revenue, and better site utilization for charging station owners, and cheaper and faster charging for the EV owners. The same technology can serve other applications where large DC loads are present, including the data centers, which already make up 1.8% of total US power consumption. The proposed project will advance technologies developed under the FREEDM ERC, by solving a number of important challenges in the area of medium voltage power conversion. We will prove that our recently discovered, provisional patent protected, single stage power converter can reduce system costs and improve system efficiency. The team will analytically derive the conditions that allow for switching device soft-switching transitions that result in minimal system losses. We will develop analytical models to determine the optimal switching trajectories that consider phase shift, switching frequency and non-linear saturable inductor elements as independent variables. With an analytical representation of the optimal modulation schemes for the proposed controller, the team will develop a design space exploration tool to systematically trade off converter design parameters against multiple performance criteria, namely cost, efficiency, power density and reliability.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该PFI项目的更广泛的影响/商业潜力是，提供的电动汽车充电器至少比现有的电动汽车充电系统小10倍，并且在充电过程中浪费了一半的功率。该高级基于提议的固态变压器（SST）技术，该技术利用高频磁力来缩小系统尺寸并提高效率。 SST直接连接到中型电压分配系统，消除了笨重的降级变压器，并消除了功率转换阶段。较小，更高效的电动汽车充电器转化为更便宜的系统安装，更高的收入和更好的电费用户利用率，以及为电动汽车所有者提供更便宜，更快的充电速度。相同的技术可以为存在大量直流负载（包括数据中心）提供其他应用程序，这些应用程序已经占美国总功耗的1.8％。拟议的项目将通过解决中型电压转换领域的许多重要挑战来推动基于FreedM ERC开发的技术。我们将证明我们最近发现的，受临时专利保护的单阶段电源转换器可以降低系统成本并提高系统效率。该团队将分析得出允许切换设备软开关转换的条件，从而导致系统损失最小。我们将开发分析模型，以确定将相移，切换频率和非线性饱和电感元件作为自变量的最佳切换轨迹。通过对拟议控制器的最佳调制方案的分析表示，该团队将开发一个设计空间探索工具，以系统地对转换器设计参数进行针对多个绩效标准进行交易，即成本，效率，功率密度和可靠性。该奖项反映了NSF的法定任务，并通过评估基金会的智能效果，并通过评估了CRACRIAN和FRODICAIL和FRAIGIARIAL和FRAIGIARIAL和FRAIGIARIAL和FRAIGIARIAL和FRAIGIARIAL和FRAIGIARIAL和FRAIGIARIAL和FRODICAIL和FRAIGIAL。

项目成果

Guest Editorial Special Issue on High-Power Fast Chargers and Wireless Charging

关于高功率快速充电器和无线充电的客座社论特刊

• DOI: 10.1109/tte.2019.2959159
• 发表时间: 2019
• 期刊: IEEE Transactions on Transportation Electrification
• 影响因子: 7
• 作者: Lukic, Srdjan;Onar, Omer;Pantic, Zeljko
• 通讯作者: Pantic, Zeljko

A Distributed Control Architecture for Cascaded H-Bridge Converter With Integrated Battery Energy Storage

• DOI: 10.1109/tia.2020.3039430
• 发表时间: 2020-11
• 期刊: IEEE Transactions on Industry Applications
• 影响因子: 4.4
• 作者: Bei Xu;H. Tu;Yuhua Du;Hui Yu;Hui Liang;S. Lukic

Extreme Fast Charging of Electric Vehicles: A Technology Overview

• DOI: 10.1109/tte.2019.2958709
• 发表时间: 2019-12
• 期刊: IEEE Transactions on Transportation Electrification
• 影响因子: 7
• 作者: H. Tu;Hao Feng;Srdjan Srdic;S. Lukic

Capacitor Voltage Balancing for Neutral Point Clamped Dual Active Bridge Converters

• DOI: 10.1109/tpel.2020.2988272
• 发表时间: 2020-10
• 期刊: IEEE Transactions on Power Electronics
• 影响因子: 6.7
• 作者: M. Awal;Md Rashed Hassan Bipu;Oscar Andrés Montes;Hao Feng;I. Husain;Wensong Yu;S. Lukic

Optimization of Medium Frequency Transformers with Practical Considerations

结合实际考虑的中频变压器优化

• DOI: 10.1109/apec.2019.8722164
• 发表时间: 2019
• 期刊: Annual IEEE Conference
• 作者: Booth, Kristen;Subramanyan, Harish;Liang, Xinyu;Liu, Jun;Srdic, Srdjan;Lukic, Srdjan
• 通讯作者: Lukic, Srdjan