CAREER: Hybrid Multimode Resonant Switched-Capacitor Converters for Renewable Energy and Point-of-Load Power Delivery

职业：用于可再生能源和负载点电力输送的混合多模谐振开关电容器转换器

• 批准号: 1554265
• 负责人: Jason Stauth
• 金额: $ 50万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-02-15 至 2022-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1554265&HistoricalAwards=false
• 关键词: CAREER; Hybrid; Multimode; Resonant; Switched; CAREER; Hybrid; Multimode; Resonant; Switched

The field of power electronics is expected to grow in scope and importance in coming decades due to the rising need for renewable energy generation and storage, increasing adoption of electrified transportation, and to broadly reduce energy consumption of end-load applications. This research effort targets circuit, system, and implementation details of new families of power electronics based on resonant and multimode operation of switched-capacitor (SC) families of DC-DC converters. The work holds promise in facilitating greatly increased utilization of high-energy-density passive devices (capacitors and inductors) while leveraging exponential (Moore's Law) semiconductor scaling, and transformational benefits of wide-bandgap transistors. Specific research will address next-generation energy management circuits and architectures for photovoltaic systems, and large-scale battery arrays used in electrified transportation and grid-embedded energy storage. The work will also extend more generally to a variety of applications that demand high power-efficiency in a variety of load conditions, high power-density (small size), low cost, and robust variable regulation capability. Research and teaching are integrated through the training and involvement of Dartmouth graduate and undergraduate students, specific outreach modules that will engage k-12 students and the general public, and teaching activities that integrate research topics and findings in the curriculum.Resonant or hybrid operation of switched-capacitor (SC) DC-DC converters is growing increasingly attractive as the approach benefits from many of the fundamental advantages SC topologies have compared to more traditional magnetics-based topologies (e.g. buck or boost), but it can eliminate many specific limitations or disadvantages of the SC architecture. In particular, we address key knowledge gaps related to achieving highly-efficient variable voltage regulation by using the native switching capability of SC topologies merged with resonating or soft-charging inductors. We will explore the prospects of merged-multiphase interleaving that have the potential to reduce size and cost, while increasing efficiency and power-density. Variable regulation is essential for most point-of-load applications, but also promising as a way to implement distributed granular maximum power point tracking (MPPT) in photovoltaic systems, and online spectroscopic diagnostic capability in large-scale electrochemical storage systems. We will also explore multi-mode operation to extend high efficiency across a wide load range for a range of circuit topologies spanning moderate-low voltage and higher voltage applications using wide-bandgap devices.

由于对可再生能源产生和存储的需求不断增长，增加电气运输的采用，并大大减少最终负载应用程序的能源消耗，因此预计在未来几十年的范围和重要性将增长。这项研究工作针对的是基于DC-DC转换器的开关电容器（SC）家族的谐振和多模操作的新电力电子家族的电路，系统和实施细节。这项工作有望大大增加对高能密度的被动设备（电容器和电感器）的利用，同时利用指数（Moore's Law）的半导体缩放和宽带式晶体管的变革益处。具体的研究将介绍用于光伏系统的下一代能源管理电路和架构，以及用于电气传输和网格包裹的能量存储中的大型电池阵列。这项工作还将更普遍地扩展到各种应用程序，这些应用需要在各种负载条件下，高功率密度（小尺寸），低成本和稳健的可变调节能力。研究和教学是通过达特茅斯毕业生和本科生的培训和参与，将吸引K-12学生和公众的特定宣传模块以及将研究主题和发现整合到课程中的教学活动的特定宣传模块来整合的。在课程中融合了研究主题和发现。与之相比，交换机（SC）dc-dc convermant的越来越多的范围与许多人相比，许多人越来越多地将dc-dc-dc convermant的范围与许多人相提并论。基于磁化的拓扑（例如，降压或增压），但它可以消除SC体系结构的许多特定局限性或缺点。特别是，我们通过使用与共鸣或软充电电感器合并的SC拓扑结合的天然开关能力来解决与实现高效可变电压调控有关的关键知识差距。我们将探索合并的杂种交织的前景，这些前景有可能降低尺寸和成本，同时提高效率和功率密度。可变法规对于大多数负载点应用是必不可少的，但也有望作为在光伏系统中实施分布式颗粒状最大功率跟踪（MPPT）的一种方式，以及在大型电化学存储系统中的在线光谱诊断能力。我们还将探索多模式操作，以扩大宽载荷范围的高效率，用于一系列电路拓扑，这些电路拓扑涵盖了中低电压和使用宽带盖设备的更高电压应用。