SBIR Phase II: Extremely Compact, High Efficiency, Integrated Converter and Energy Storage System

该项目的更广泛的影响/商业潜力是使能源存储的大规模部署能够增加可再生能源的安装，以减少污染和温室气体，改善能源安全，提高能源效率和安全性。该项目将大幅降低储能系统（ESS）的成本和规模，使其能够进入化石燃料市场。其中一个关键市场是电网辅助服务，包括调节电网频率和稳定性的频率调节（FR）。随着该项目的潜力，基于电池的ESS的FR市场预计将从每年1亿美元增长到每年超过40亿美元。该项目具有取代化石燃料的社会效益。通常用于执行FR的工厂，使用基于清洁锂离子电池的ESS。此外，通过为电网提供更低成本的FR能力，该项目将使更多可再生能源的电网渗透，这需要额外的FR能力。这个小企业创新研究（SBIR）二期项目将开发一个高度紧凑的集成模块化逆变器/储能系统，以彻底改变电网、微电网、能源效率和能源可靠性支持的储能系统部署。这里提出的开发工作包括一个先进的储能系统，由一个极其紧凑的150kW高频3电平逆变器，一个集成的100kWhr紧凑型锂离子电池系统，专有的电池管理系统和互联网通信能力组成。这将提供一个高度集成和可扩展的150kW储能系统，集成电池组逆变器，系统成本降低60%，尺寸缩小10倍，将为能源存储和可再生能源开辟新的市场。该项目将开发关键技术创新，与先进的锂离子电池一起工作，形成革命性的新产品。这些创新包括：高频3电平逆变器与创新的高频控制和输出滤波器，以实现10倍的体积减少；一种新颖的拓扑结构，将逆变器集成到每个电池串中，消除了许多组件，从而降低了60%的系统成本；模块化和可扩展的设计，具有容错性，可以轻松优化多个系统使用。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this project is to enable vast deployment of energy storage to increase installation of renewable energy for reduced pollution and greenhouse gases, to improve energy security, and to improve energy efficiency and safety. The project will realize a dramatic reduction in cost and size of Energy Storage Systems (ESS) that will allow penetration of ESS into markets served by fossil fuels. One key market is grid ancillary services which includes Frequency Regulation (FR) that regulates grid frequency and stability. With the potential of this project, the FR market for battery based ESS is expected to grow from $100M/yr to over $4B/yr. This project has the societal benefits of replacing fossil fuel based ?peaker? plants that are commonly used to perform FR, with clean Li-ion battery based ESS. Furthermore, by providing lower cost FR capability for the grid, the project will enable grid penetration of more renewable energy, which requires additional FR capability.This Small Business Innovation Research (SBIR) Phase II project will develop a highly compact integrated modular inverter/energy storage system to revolutionize deployment of energy storage system for grid, micro-grid, energy efficiency, and energy reliability support. The development effort proposed here includes an advanced energy storage system consisting of an extremely compact 150kW high frequency 3-level inverter, an integrated 100kWhr compact Li-ion battery system, proprietary battery management systems and internet communications capability. This will provide a highly integrated and scalable 150kW Energy Storage System with an integrated battery string inverter with 60% reduced system cost and 10X reduced size that will open new markets for energy storage and renewable energy. The project will develop key technology innovations which work together with advanced Li-ion batteries to form a revolutionary new product. These innovations include: high frequency 3-level inverter with innovative high frequency control and output filter to achieve 10X reduction in volume; a novel topology that integrates inverters into each cell string and eliminates many components resulting in 60% system cost reduction; a modular and scalable design that is fault tolerant and allows easy optimization for multiple system uses.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.