STTR Phase I: Differential-Mode High-Frequency GaN-on-Si PV Microinverter

STTR 第一阶段：差模高频硅基氮化镓光伏微型逆变器

• 批准号: 1448181
• 负责人: Sudip Mazumder
• 金额: $ 22.5万
• 依托单位: NextWatt LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1448181&HistoricalAwards=false
• 关键词: STTR; Phase; Differential; Mode; Frequency

The broader impact/commercial potential of this project encompasses key application areas of photovoltaic sustainable energy systems in residential and commercial power systems, with a projected multi-billion dollar global industry. From a business owner standpoint, the proposed microinverter will provide a significant advantage to photovoltaic power-conditioning companies both in terms of (a) enhanced profitability due to reduced microinvert cost and (b) superior performance parameters encompassing improved energy efficiency, higher durability, enhanced reliability, high power density, and simultaneous grid connectivity and source energy optimization. Further, the proposed technology is also extendable to (single- and three-phase) energy systems sourced by fuel cell, batteries, and wind as well. As such, the proposed system is expected to be of prime interest to key businesses. On a broader note, the proposed project brings together the expertise of a small business and an advanced research institution providing a pathway that is based on strong foundation of industry-university collaboration.This Small Business Technology Transfer Research (STTR) Phase I project This STTR Phase I project will design and analyze a GaN-on-Si based novel photovoltaic (PV) microinverter and its power-stage subsystems, synthesize a unified model predictive control algorithm for simultaneous source energy optimization and grid connectivity, and perform comprehensive performance predictions of the microinverter. The GaN-on-Si technology provides an optimal balance between low-cost, high performance, and high power density for the microinverter. A direct power conversion mechanism for the microinverter alleviates the high-voltage dc-link electrolytic capacitor thereby yielding higher long-term reliability, reduced cost, and reduced space. The compact architecture microinverter architecture and the reduced device count of the power stage provide a seamless and modular pathway for power scalability for future multi-phase and/or high power needs.

该项目更广泛的影响/商业潜力涵盖了光伏可持续能源系统在住宅和商业电力系统中的关键应用领域，预计全球产业价值数十亿美元。从企业主的角度来看，拟议的微型逆变器将为光伏发电调节公司提供显着的优势：(a) 由于微型逆变器成​​本降低而提高盈利能力；(b) 卓越的性能参数，包括提高能源效率、更高的耐用性、增强的性能和性能。可靠性、高功率密度、同步电网连接和能源优化。此外，所提出的技术还可扩展到由燃料电池、电池和风能提供的（单相和三相）能源系统。因此，拟议的系统预计将引起关键企业的主要兴趣。从更广泛的角度来看，拟议的项目汇集了小型企业和先进研究机构的专业知识，提供了一条基于产学合作的坚实基础的途径。这个小型企业技术转移研究（STTR）第一阶段项目这个 STTR第一阶段项目将设计和分析基于硅基氮化镓的新型光伏（PV）微逆变器及其功率级子系统，综合用于同步源能量优化和电网连接的统一模型预测控制算法，并对光伏微逆变器进行全面的性能预测。微型逆变器。硅基氮化镓技术为微型逆变器提供了低成本、高性能和高功率密度之间的最佳平衡。微型逆变器的直接功率转换机制减轻了高压直流母线电解电容器的负担，从而实现了更高的长期可靠性、更低的成本和更小的空间。紧凑的微逆变器架构和减少的功率级器件数量为未来多相和/或高功率需求的功率可扩展性提供了无缝和模块化的途径。