Collaborative Research: Highly Compact, Multi-port, GaN-Based Grid-Forming Inverter

合作研究：高度紧凑、多端口、基于 GaN 的并网逆变器

• 批准号: 2227160
• 负责人: Alex Huang
• 金额: $ 28万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-01-01 至 2025-12-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2227160&HistoricalAwards=false
• 关键词: Collaborative; Research; Highly; Compact; Multi

Weather-related disasters are sobering reminder of the "growing pains" that accompany the electric energy transition towards renewable generations. Addressing such challenges will require renewable resources to be designed to support the grid when needed instead of tripping offline during these times. This will require a new grid-forming inverter technology. This project brings together a joint team from the University of Texas Austin and the University of Central Florida, to develop a high efficiency, high power density grid-forming solutions to enable a more resilient grid. The team has previously developed and verified several key innovations such as the basic grid-forming control, control of multi-port inverter, and control of multilevel three port inverter. The project supports US’s energy transition to a renewable energy-based future, and it will enable higher penetration of solar energy into the grid by delivering an integrated, efficient, and reliable solar plus storage solutions. This PV plus storage microinverter systems will provide a reliable renewable energy asset for the grid, thereby lessening the nation’s dependence on fossil fuels and creating a grid that is more resilient and stable. The integration of the storage in the microinverter itself could generate new business models, enabling the owner and utility new degrees of freedom in grid control and energy flexibility. This project will result in technological advancements in grid-forming control methodology as well as the advancement of using wide bad-gap GaN power devices based three port multilevel inverter. In terms of frequency response, the project will study and valid a novel Adaptive Frequency Position (AFP) concept which will move grid-forming control beyond the traditional synchronous generation inertia emulation. Innovative three port multilevel inverter topology will be studied and used to realize a high performance GaN microinverter with PV and storage connectivity. The proposed collaborative project will enable the team to work together to advance the GFM controls beyond the basic functionality, study the stability when multiple grid-forming and grid-following inverters work together, as well as to develop a GaN based grid-forming microinverter and testbed. The main technical objectives include: 1) Optimization of grid-forming voltage control loop bandwidth and filter design. 2) Advanced functionalities for three-port microinverter with black start, automatic islanding, MPPT, reactive power support functionalities in addition to the frequency support; 3) Advanced control beyond inertia emulation 4) Design of advanced three port microinverter beyond the state of the art in microinverter technology.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.

与天气有关的灾难令人震惊地提醒人们，涉及到可再生世代的电能量过渡的“成长痛苦”。应对此类挑战将需要设计可再生资源，以便在需要时支持网格，而不是在这些时期内脱机。这将需要一种新的网格形成逆变器技术。该项目汇集了来自德克萨斯大学奥斯汀大学和中部佛罗里达大学的联合团队，以开发高效率，高功率密度的网格形成解决方案，以实现更弹性的网格。该团队先前已经开发并验证了几项关键创新，例如基本的网格形成控制，多端口逆变器的控制以及对多级三端口逆变器的控制。该项目支持美国的能源过渡到可再生能源的未来，它将通过提供集成，高效且可靠的太阳能以及存储解决方案来使太阳能渗透到网格中。此PV Plus存储微型逆变器系统将为网格提供可靠的可再生能源资产，从而减少国家对化石燃料的依赖，并创建一个更具弹性和稳定的网格。在微型逆变器本身中存储的集成可以产生新的业务模型，从而使所有者和实用程序在网格控制和能源灵活性方面具有新的自由度。该项目将在网格形成控制方法方面取得技术进步，以及使用基于三个端口多层逆变器的宽宽gap gan电源设备的进步。就频率响应而言，该项目将研究并有效一个新型的自适应频率位置（AFP）概念，该概念将使网格形成控制超出传统同步惯性仿真。创新的三个端口多层逆变器拓扑将进行研究，并用于实现具有PV和存储连接的高性能GAN微型逆变器。拟议的协作项目将使团队能够共同努力，以将GFM控件超越基本功能，研究稳定性，当多个网格形成和网格的逆变器共同努力，并开发基于GAN的网格形成的微晶片和测试床。主要技术对象包括：1）优化网格形成电压控制回路带宽和滤波器设计。 2）具有黑色启动，自动岛化，MPPT，反应性功率支持功能的三端口微电逆变器的高级功能，除了频率支持； 3）高级控制超越惯性效仿4）在微型逆变器技术中，高级三个港口微型逆变器的设计。该奖项反映了NSF的法定任务，并通过使用基金会的知识分子和更广泛的影响来评估标准，被认为是通过评估来获得的支持。