Hybrid-Modulation based High-power High-frequency and Scalable SiC Polyphase Fuel-cell Inverter for Power Quality and Distributed Generation

基于混合调制的高功率高频和可扩展 SiC 多相燃料电池逆变器，用于电能质量和分布式发电

• 批准号: 0725887
• 负责人: Sudip Mazumder
• 金额: $ 27万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0725887&HistoricalAwards=false
• 关键词: Hybrid; Modulation; based; power; frequency

Objectives:The objective of this research is to design a novel high-power, "high-frequency", energy-efficient fuel-cell inverter that is scalable and modular and supports bulk power generation and/or reactive and harmonic compensations. This radical high-frequency topology is based on a novel hybrid modulation scheme, next-generation SiC power devices, and nanocrystalline transformer core. The mechanism for validation is twofold: scaled experimental design for concept validation and analytical design using empirically-validated SiC device models for performance and reliability predictions at high power.Intellectual Merit:Conventional low-frequency high-power inverter needs extremely bulky, expensive, and huge-footprint-space filters and transformer. The proposed polyphase inverter eliminates the need for dc link filters and line-frequency utility transformer. Further, due to i) the unique hybrid modulation (which reduces switching loss), ii) significantly reduced core loss of the nanocrystalline transformer core, and iii) reduced on-state drop (implying lower conduction loss) and reduced device capacitance and reverse recovery (implying reduced switching loss) of SiC high voltage devices, operation of high power inverter is feasible at high efficiency even at high frequency. Broader Impact:The proposed inverter has applications ranging from FutureGen, FACTs, solid-state power station, distributed generation, interconnection of two subgrids operating at different frequencies, electric ship, fuel-cell APU for aerospace, to high power UPS. Results of the research will be integrated into two power courses, which are taught by the PI and taken by several students. The project will support 1 Ph.D. student and will incorporate 6 Sr. Design and undergraduate students (with

目的：这项研究的目的是设计一种新型的高功率，“高频”，节能燃料电池逆变器，可扩展且模块化，并支持大量的发电和/或反应性和谐波补偿。这种根治性的高频拓扑基于新型混合调制方案，下一代SIC功率设备和纳米晶变压器核心。验证的机制是双重的：使用经验验证的SIC设备模型进行概念验证和分析设计的缩放实验设计，以高功率以高功能进行性能和可靠性预测。智能优点：传统的低频高功率倒置商需要极大的，昂贵的，昂贵的，昂贵的，且巨大的脚架空间滤光器和变形金刚。提出的多相逆变器消除了对直流链路过滤器和线路频实用变压器的需求。此外，由于i）独特的混合动力调节（减少了切换损失），ii）显着降低了纳米晶体变压器核心的核心损失，iii）减少了状态下降（暗示较低的导导损失），并降低了设备的电容，并降低了SIC高压效率的高电量设备的效率高电量的效率高效率。更广泛的影响：拟议的逆变器的应用程序范围从未来，事实，固态发电站，分布式发电，两个以不同频率运行的子网格的互连，电动船，用于航空航天的燃料电池APU，到大电源。该研究的结果将融入两个电力课程，这些课程由PI教授，并由几个学生取得。该项目将支持1博士学位。学生并将合并6个高级设计和本科生（与