SBIR Phase I: Third Generations Flywheels for Electricity Storage

这个小企业创新研究第一阶段项目将设计和测试磁悬浮电力存储飞轮的电机/发电机子系统，可扩展到每单位兆瓦时，有可能大大减少由于电力波动和停电造成的美国经济损失。根据电力研究所的数据，这些损失每年超过1000亿美元。该公司的研究目标是开发低成本的第三代飞轮——“动力环”——在紧凑的尺寸下具有巨大的动力和容量。数兆瓦时单位似乎是可行的。第一阶段项目的预期结果是设计一个集成到power Ring设计中的高功率密度电机/发电机，对其对环稳定性影响的动态分析，以及一个可工作的小型电机/发电机版本。对新建输电线路和发电厂的反对、环境限制和过高的成本阻碍了系统的改进。如果储能飞轮的功率和容量比目前的几百千瓦和几千瓦时的限制高得多，那么它就可以提供一种清洁、经济的替代方案，并减少经济损失。但高容量的第一代（钢）飞轮体积太大，成本效益不高，第二代（复合）飞轮无法扩大规模。

This Small Business Innovation Research Phase I project will design and test the motor/generator subsystem for a magnetically levitated electricity storage flywheel, scalable to megawatt-hours per unit, with the potential to greatly reduce US economic losses due to electric power fluctuations and blackouts. According to the Electric Power Research Institute, these losses exceed $100 billion/year. The company's research objective is to develop low cost third generation flywheels - "Power Rings" - with enormous power and capacity in a compact size. Multi-megawatt-hour units appear feasible. Anticipated results of this Phase I project are the design of a high power density motor/generator integrated into the Power Ring design, a dynamic analysis of its effects on ring stability, and a working small-scale version of the motor/generator.Opposition to new transmission lines and power plants, environmental restrictions, and exorbitant costs have slowed system improvements. Electricity storage flywheels could provide a clean, economical alternative and slash economic losses if they had much higher power and capacity than the present limit of a few hundred kW and a few kWh. But high capacity first generation (steel) flywheels are too massive to be cost effective and second generation (composite) flywheels cannot be scaled up.