A Novel, Cost-Effective, High Performance Utility Interface for Distributed Generation

用于分布式发电的新颖、经济高效、高性能实用程序接口

• 批准号: 0099880
• 负责人: Ned Mohan
• 金额: $ 11.5万
• 依托单位: University of Minnesota-Twin Cities
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-05-15 至 2004-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0099880&HistoricalAwards=false
• 关键词: Novel; Cost; Effective; Performance; Utility

The restructuring of the utility industry has created new opportunities for distributed generation. The market for distributed generation is growing and is expected to reach between 25 to 50 GW by 2010. Current trends in the United States favor distributed generation due to its increased efficiency and reduced emissions. The objective of the proposed research is to develop a low cost, high efficiency interface system in residential buildings for connecting dc sources like fuel cells to the grid, and to provide backup power during utility outages. The proposed topology supplies output power as split single-phase (plus/minus 120 V, 240 V). A novel system configuration is proposed which essentially eliminates all switching losses, thus enabling very high efficiency and high power density.A prototype utility interface rated for an output power of 1.5 kW operating from a dc input will be built. The prototype will be thoroughly tested for its functionality and efficiency. The protection features incorporated into the system will be tested against possible fault conditions. The design will be scaled up to a 10 kW power rating.A low-cost, high efficiency utility interface (also able to act as a backup power source) will accelerate the use of distributed generation sources such as fuel cells and micro-turbines. The design of the proposed interface can be modified for higher power in three-phase applications.

公用事业行业的重组为分布式发电创造了新的机遇。 分布式发电市场正在不断增长，预计到 2010 年将达到 25 至 50 吉瓦。美国目前的趋势有利于分布式发电，因为它可以提高效率并减少排放。拟议研究的目的是在住宅建筑中开发一种低成本、高效率的接口系统，用于将燃料电池等直流电源连接到电网，并在公用设施停电期间提供备用电源。 所提出的拓扑以分离单相（正/负 120 V、240 V）的形式提供输出功率。 提出了一种新颖的系统配置，该配置基本上消除了所有开关损耗，从而实现非常高的效率和高功率密度。将构建一个额定输出功率为直流输入 1.5 kW 的原型公用设施接口。 该原型将对其功能和效率进行彻底测试。 系统中包含的保护功能将针对可能的故障情况进行测试。 该设计的额定功率将扩大至 10 kW。低成本、高效率的公用接口（也能够充当备用电源）将加速燃料电池和微型涡轮机等分布式发电源的使用。 可以修改所提出的接口的设计，以实现三相应用中的更高功率。