CAREER: Novel Direct Current Power Distribution for Large-scale Electrified Transportation Charging

NSF CAREER项目旨在在直流配电（DCPD）领域取得根本性进展，创造新的科学知识，并对高效、可靠、低成本的大型电动汽车（EV）充电产生变革性影响。该项目将为电气化交通、电动交通、净零排放目标以及相关的社会影响带来革命性的变化。该项目的智力优势包括：(1)为大规模电动汽车充电的充电器提供了一种新的配电解决方案，(2)推进了一系列交流-直流架构的建模和控制知识，(3)引入了可再生能源集成架构，(4)为模块化系统设计和控制创造了科学发现，(5)为功率转换器电热分析提供了新的知识，(6)推进了动态建模领域。DCPD的稳定性分析、操作和保护，以及(7)创建一个新的可扩展和可转移的硬件平台，用于实验评估和验证。该项目的更广泛影响包括：(1)通过为大规模电动汽车充电提供有效的电力分配，促进电动汽车的广泛采用，并培训多样化的工程人员，以推动技术在社会上的广泛采用；(2)改善空气质量，减少温室气体排放，降低人员和货物的运输成本；(3)提高女性和少数族裔对工程职业的兴趣。在追求工程方面的高等教育。CAREER计划的目标是在直流配电架构、电源转换器设计技术、电源转换器和系统建模以及新型电热分析方面取得基础进展并创造新的科学知识，共同为高效、可靠和低成本的大规模电动汽车充电带来变革性影响。这将通过提出一种新颖的DCPD来实现，该DCPD的充电单元通过并网交直流电流源供电的干线电缆串联起来，以解决如何将电力分配给大规模电动汽车充电的充电器的重要基本问题。该项目的教育和研究结合在一起，以增加工程领域的多样性、公平性、包容性和可及性（DEIA），并培养下一代工程师，为美国电气化交通的转型做好充分准备。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。

This NSF CAREER project aims to make fundamental advances and create new scientific knowledge in direct current power distribution (DCPD) and enable transformative impact on efficient, reliable, and low-cost large-scale electric vehicle (EV) charging. The project will bring transformative change to electrified transportation, e-mobility, goals for net-zero emissions, and associated societal impact. The intellectual merits of the project include (1) introducing a novel solution for distributing power to chargers for large-scale EV charging, (2) advancing knowledge in modeling and control for a family of ac-dc architectures, (3) introducing architectures for renewable energy integration, (4) creating scientific findings for modular system design and control, (5) producing new knowledge for power converter electro-thermal analysis, (6) advancing the field of dynamic modeling, stability analysis, operation, and protection of DCPD, and (7) creating a new scalable and transferable hardware platform for experimental evaluation and validation. The broader impacts of the project include (1) facilitating widespread EV adoption by enabling effective power distribution for large-scale EV charging and training the diverse engineering workforce necessary to carry the technologies forward to widespread adoption in society, (2) improved air quality, reduced greenhouse gas emissions, and reduced cost to move people and goods, (3) increasing the interest of women and underrepresented minority groups in an engineering career, and in pursuing higher education in engineering.The CAREER plan goal is to make fundamental advances and create new scientific knowledge in direct current power distribution architectures, power converter design techniques, power converter and system modeling, and novel electro-thermal analysis, collectively enabling transformative impact on efficient, reliable, and low-cost large-scale EV charging. This will be achieved by proposing a novel DCPD with charging units connected in series through a trunk cable powered by a grid-tied ac-dc current source to address the significant fundamental problem of how to distribute power to the chargers for large-scale EV charging. The education and research of the program are woven together to increase diversity, equity, inclusion, and accessibility (DEIA) in engineering and train the next generation of engineers to be well-prepared for the transformation in electrified transportation in the U.S.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.