Highly Integrated Resonant Switched Capacitor Converters for Sub-Module Photovoltaic Power Management

智慧价值这项研究将探索使用高度集成的电力电子技术来提高光伏(PV)系统的发电量。我们将开发一种3D集成工艺，将功率磁件、功率转换电路和一系列中密度到高密度电容器技术结合在一起，采用商用的CMOS技术和定制的后端工艺。第二个重点将是高效、高功率密度的电路设计，以充分利用集成的无源和有源器件的最大能力。特别是，我们将探索在部分功率处理架构中使用谐振式开关电容(ReSC)转换器，该架构可以在子模块级别与光伏电池组集成，以高效且经济高效地减少由于单元、模块和系统级别的不匹配而造成的功率损失。目标包括在一系列操作场景中实现99%以上的有效转换效率，插入损耗低于0.1%，以及模块集成电子产品成本低于5美分/瓦的路线图。广泛影响目前，光伏电池之间的差异以及它们获得的太阳曝光量的差异极大地限制了可能的实际能量提取，并对系统配置和电网接口电子设备施加了不希望看到的约束。拟议的研究旨在消除这些障碍，使光伏系统具有更强的稳健性、灵活性和能量提取能力，同时保持转换电子设备的低成本。开发可完全集成到硅集成电路(IC)中的电力电子解决方案和组件可以支持光伏系统的并网方式，但也可能影响其他迫切需要的领域，如LED照明，以及一系列消费和工业电子的电力输送。此外，该项目开发的工具和技术将被广泛用于向下一代工程师、科学家和教育工作者教授和传播科学知识。这项研究将增强达特茅斯大学在特定课程和更广泛课程中的教育经验。该计划还将用于加强我们的社区外展工作。达特茅斯K-12课程的推广，包括主要研究人员的定期课堂访问和参加高中生暑期工程研讨会，将激发新的活动，利用学生对太阳能的兴趣来推动对技术概念的参与，帮助使这些概念变得容易理解和有意义。

Intellectual MeritThis research will explore the use of highly-integrated power electronics to improve the energy production of photovoltaic (PV) systems. We will develop a process for 3-D integration of power magnetics, power conversion circuitry, and a range of moderate to high density capacitor technologies using commercially available CMOS technologies and custom back-end processing. A second focus will be on efficient, high power-density circuit designs that can exploit the maximum capabilities of integrated passive and active devices. In particular, we will explore the use of resonant switched-capacitor (ReSC) converters, used in partial power processing architectures that can be integrated with groups of PV cells at the sub-module level to efficiently and cost effectively mitigate power that is lost due to mismatch at the cell, module, and system level. Targets include achieving effective conversion efficiencies over 99% for a range of operating scenarios, insertion loss below 0.1%, and a roadmap for cost of module-integrated electronics below 5 ¢/Wp.Broader ImpactPresently, variations among PV cells and differences in how much insolation they receive greatly limit the practical energy extraction that is possible and impose undesired constraints on the system configuration and grid interface electronics. The proposed research aims to eliminate these obstacles, resulting in PV systems of much greater robustness, flexibility and energy extraction capability, while maintaining low cost of the conversion electronics. Developing power electronics solutions and components that can be fully integrated in silicon integrated circuits (ICs) can support the path to grid-parity for PV systems, but can also impact other areas of acute need such as LED lighting, and power delivery for a range of consumer and industrial electronics.In addition, the tools and techniques developed in this project will be used extensively for teaching and dissemination of scientific knowledge to the next generation of engineers, scientists and educators. The research will augment the educational experience at Dartmouth in specific courses and the broader curriculum. The program will also be used to enhance our community outreach efforts. Dartmouth K-12 outreach, including regular classroom visits by the principal investigators and involvement in summer engineering workshops for high-school students will motivate new activities that leverage students' interest in solar energy to drive engagement with technical concepts, helping to make these concepts accessible and meaningful.