SBIR Phase I: A compact, 3-level, high efficiency, 4-port, modular universal power conversion system with Internet of Things (IOT) using Wide Bandgap (WBG) devices

该小型企业创新研究（SBIR）项目的更广泛影响/商业潜力侧重于开发通用电源转换系统，以满足快速增长的电气化和储能行业未满足的需求，无论是与电动汽车（EV），EV充电，EV充电基础设施，电网存储还是电动船应用。所提出的模块化和可扩展的功率转换系统基于最新一代功率半导体器件碳化硅（SiC），并且可以在宽功率和电压范围内的许多应用中使用。该项目旨在使系统非常紧凑，并实现极高的效率，这是硅基系统无法实现的。这种模块化的系统配置可以很容易地被采用，以开发中压为基础的电动汽车充电应用，这将是未来的电动汽车商业半卡车行业。此外，由于模块化和可扩展性，系统集成变得容易，耗时更少，降低了成本，并有助于适应电气化。该SBIR第一阶段项目旨在开发一种多输入，多输出模块化，可扩展，高度紧凑的宽带隙，四端口通用功率转换系统，可应用于电力推进和其他功率转换应用。该系统的变体适用于电动汽车充电，并网储能，分布式能源和电动船推进。所提出的研究和开发工作的智力优点是高度紧凑和高效的性质，具有由以数百千赫兹切换的高频Transformer支持的多个电源端口，从而与现有技术相比，预期尺寸减小50倍，重量减轻至少5倍。所提出的高度集成的四端口系统是基于下一代宽带隙氮化镓和碳化硅器件的组合。四端口系统中的三个端口将包括电池端口、推进电机端口/交流电网连接端口和12 V-48 V辅助端口，这些端口通过使用基于SiC的3级电力电子构建块（PEBB）来实现。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而被认为值得支持。

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project focuses on developing a universal power conversion system that addresses the unmet needs of the fast-growing electrification and energy storage industries whether it is related to electric vehicles (EV), EV charging, EV charging infrastructure, grid storage, or electric boat applications. The proposed modular and scalable power conversion system is based on the latest generation of power semiconductor devices, silicon carbide (SiC), and can be used across many applications extending over wide power and voltage ranges. The project aims at making the system extremely compact and achieving extremely high efficiencies, which cannot be achieved by silicon-based systems. This modular system configuration can easily be adopted to develop medium voltage-based EV charging application which will be the future for the EV commercial semi trucking industry. Furthermore, due to modularity and scalability, system integration becomes easy and less time-consuming decreasing the cost and helping the adaptation of electrification. This SBIR Phase I project proposes to develop a multi-input, multi-output modular, scalable, and highly compact wide bandgap-based, four-port universal power conversion system which can be applied to electric propulsion and other power conversion applications. Variants of this system are suitable in electric vehicle charging, grid-connected energy storage, distributed energy, and electric boat propulsion. The intellectual merits of the proposed research and development work is the highly compact and efficient nature with multiple power ports supported by a high frequency transformer switching at hundreds of kilohertz resulting in an anticipated size reduction of 50 times, and a weight reduction of at least 5 times compared to existing technologies. The proposed highly integrated, four port system is based on the combination of next generation wide bandgap gallium nitride and silicon carbide devices. Three ports of the four port system will include, the battery port, propulsion motor port/AC grid connection port and 12V-48 volt auxiliary port, realized by using SiC based 3-level power electronics building block (PEBB).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.