EAGER: Ultra-Efficient, Scalable, and Fault-Tolerant DC-DC Converters for Medium/High-Voltage Applications

EAGER：适用于中/高压应用的超高效、可扩展且容错的 DC-DC 转换器

• 批准号: 1937746
• 负责人: Maryam Saeedifard
• 金额: $ 21.99万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1937746&HistoricalAwards=false
• 关键词: EAGER; Ultra; Efficient; Scalable; Fault

EAGER: Ultra-Efficient, Scalable, and Fault-Tolerant DC-DC Converters for Medium/High-Voltage Applications With the growing demand for exploiting distributed energy resources and the need for dynamic and reconfigurable power grids with ever increasing power density, reliability, and efficiency requirements, the concept of direct current (dc) power systems is gaining traction. Lower losses and higher power densities enabled by dc power transmission and distribution has sparked further implementation of high-voltage and medium-voltage dc transmission and distribution systems. It is envisioned that the dc grids will improve functionality, stability, and reliability of the legacy power grid while simultaneously decreasing the conversion losses and investment cost. The envisioned dc grids are not necessarily at the same voltage level and their expansion towards the future grid calls for ultra- efficient, scalable, power-dense and fault-tolerant medium- and high-voltage dc-dc power converters, which will enable voltage matching when connecting two or more dc systems operating at different voltage levels. The objective of this research is to realize a new class of dc-dc converters, which pushes the boundaries of efficiency, scalability, power density and fault tolerance/reliability and expedites further expansion of dc grids. To this end, two new promising converter topologies, one based on the voltage-sourced converter concept and the other one based on the current-sourced converter concept, are fully explored. The project will focus on modeling, analysis, control, short-circuit fault protection, and design optimization of these converter topologies, demonstrating the ability to achieve the objectives including compact, ultra-efficient, power dense, and embedded fault blocking capability. The proposed educational activities will help educate and equip next-generation power engineers/scientists with the required knowledge and skills to tackle energy chalThis 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.

EAGER：适用于中/高压应用的超高效、可扩展和容错 DC-DC 转换器随着对分布式能源开发的需求不断增长，以及对动态和可重构电网的需求，以及不断提高的功率密度、可靠性和效率要求，直流 (dc) 电力系统的概念越来越受到关注。直流输电和配电带来的更低损耗和更高功率密度促进了高压和中压直流输配电系统的进一步实施。预计直流电网将提高传统电网的功能、稳定性和可靠性，同时降低转换损耗和投资成本。 设想的直流电网不一定处于相同的电压水平，其向未来电网的扩展需要超高效、可扩展、功率密集和容错的中压和高压直流-直流电源转换器，这将在连接两个或多个在不同电压水平运行的直流系统时实现电压匹配。这项研究的目标是实现新型直流-直流转换器，突破效率、可扩展性、功率密度和容错/可靠性的界限，并加速直流电网的进一步扩展。为此，我们充分探索了两种新的有前途的转换器拓扑，一种基于电压源转换器概念，另一种基于电流源转换器概念。该项目将重点关注这些转换器拓扑的建模、分析、控制、短路故障保护和设计优化，展示实现紧凑、超高效、功率密集和嵌入式故障阻断能力等目标的能力。拟议的教育活动将帮助教育下一代电力工程师/科学家并为其提供应对能源挑战所需的知识和技能。该奖项反映了 NSF 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。