Innovative Power Electronics and Modulation Technologies for Electric, More Electric, and Hybrid Electric Transportation

该提案的重点是制定一项交通电气化研究计划。主要推力包括更多电动飞机（MEA）和船舶电气化的使能技术。次级推力是地面飞行器和飞行器到电网的接口。该研究计划将开发试验台、控制平台、软硬件接口，并为电动、混合动力和更电动的交通工具创建仿真和测试设施。该提案的重点是设计和开发创新的电力电子拓扑结构和新的电力运输调制技术。采用宽禁带半导体材料，如碳化硅（SiC）和氮化镓（GaN）和基于directet的器件和高通量磁性材料（纳米晶）以及减少电解，热和滤波器体积是新设计和开发的主要补充。该提案旨在研究减少电解电容器的电力电子电路。

The proposal focuses on developing a research program on transportation electrification. Major thrusts include enabling technologies for more electric aircraft (MEA) and marine electrification. Secondary thrusts are ground vehicles and vehicle-to-grid interface. This research program will develop test-benches, control platforms, software-hardware interfaces and create simulation and testing facilities for electric, hybrid and more electric transportation. The proposal focuses on design and development of innovative power electronics topologies and novel modulation techniques for electric transportation. Adoption of wide bandgap semiconductor materials like Silicon Carbide (SiC) and Gallium Nitride (GaN) and DirectFET based devices and high flux magnetic materials (nanocrystalline) and reduction in electrolytic, thermal, and filters volume are the major additions to the new design and development. The proposal is looking to investigate on power electronics circuits with reduced electrolytic capacitors. In MEA, light weight, high-density, low harmonics and EMC requirements, fault tolerance, and reliability are the major attributes. Existing conventional power electronics developed for industrial applications are not optimized for aircraft applications to meet harmonic requirements in airborne electrical system environmental standards. Therefore, the new power electronics become an essential technology supporting variable frequency electrical power system of MEA. Novel power factor correction topology with switching sequence and matrix converters will be researched. Integrated power system of electric ship is looking to adopt medium voltage (MV) DC architecture. This research program aims at developing MV modular multilevel converters and optimal low frequency modulation (50-200 Hz) techniques for marine propulsion system to reduce switching loses while not compromising on THD. It improves power handling capacity of devices and reduces thermal and cooling requirements. Transformerless architecture and matrix converter to reduce the complexity, cost, and improve density will be investigated. For ground vehicles, proposed research program will strategize to implement soft-switching modulation techniques at very high switching frequency, up to 500 kHz, to limit the cost of magnetics, and filters. Dedicated electrolytic capacitorless fault tolerant power electronics topologies with reduced magnetics and new devices (Sic, GaN, DirectFET)will be designed and developed to realize low cost, highly efficient and light weight propulsion system. Bidirectional V2G capability with communication and control layer will be developed for EVs to participate in future smart grid or power system distribution network to shave the peak demand to avail the mobile distributed energy storage (EV batteries) while parked and stationary.