SBIR Phase I: Robust Adaptive Levitation Control Technologies for High Speed, High Power Energy Storage Flywheels

SBIR 第一阶段：用于高速、高功率储能飞轮的鲁棒自适应悬浮控制技术

• 批准号: 0912978
• 负责人: Michael Ricci
• 金额: $ 9.97万
• 依托单位: LaunchPoint Technologies, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0912978&HistoricalAwards=false
• 关键词: SBIR; Phase; Robust; Adaptive; Levitation

This Small Business Innovation Research Phase I research project will develop advanced control techniques that will enable high-speed, high-efficiency operation of large-scale energy storage flywheels. A novel flywheel concept ? the ?Power Ring'' ? based on a hub-less rotor levitated and controlled by a hybrid magnetic bearing has been developed. The design and zero-speed levitation of the Power Ring have been demonstrated. Idle or ?spinning? losses are a key specification as they directly influence operational cost of the unit. Bearing losses are predicted to be 20% of the idle loss in the system. An advanced control system can reduce these losses by precisely monitoring and modifying the rotor vibrational modes as they sweep across the frequency band with changing machine speed. Modal control of the energy in individual vibration modes will give a highly efficient system that removes energy only from those modes that limit the machine operation. Advanced control will allow multi-megawatt devices with idle losses reduced by at least a factor of 2. A new control topology for the magnetic bearing that integrates robust control theory, modulated frequency control, on-line system identification, and adaptive control to create a reliable energy efficient levitation system will be developed.Electrical power quality problems have enormous economic impact. The Electric Power Research Institute estimates that power fluctuation and blackout losses exceed $100 billion/year. The majority of these problems are outages, surges, and sags lasting only a few seconds. The Power Ring flywheel is a cost effective method of maintaining power system stability by injecting stored energy back into the grid to carry the system through the disturbance. It can serve as a rapid-response energy storage device, allowing control of grid power flows and frequency, and enhancing grid stability and power quality/reliability. Flywheels are more efficient and less polluting than the current method of using idling power stations (typically coal-fired) to provide reserve for frequency regulation applications. Flywheels have a longer life, lower maintenance cost, and do not contain toxic chemicals as do battery storage systems for power quality applications. The high power density and cycle life of flywheels makes them an enabling technology for regenerative transportation applications. This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).

这个小型企业创新研究第一阶段研究项目将开发先进的控制技术，使大型储能飞轮能够高速、高效地运行。一种新颖的飞轮概念？《权力环》？研制了一种基于混合磁悬浮轴承控制的无轮毂转子。对功率环的设计和零速悬浮进行了论证。无所事事还是转来转去？损耗是一项关键指标，因为它们直接影响机组的运行成本。轴承损耗预计为系统怠速损耗的20%。先进的控制系统可以通过精确地监控和修改转子振动模式来减少这些损失，因为这些模式随着机器速度的变化而横扫频带。对各个振动模式中的能量进行模式控制将提供一个高效的系统，该系统仅从那些限制机器运行的模式中去除能量。先进的控制将使多兆瓦设备的怠速损耗降低至少2倍。一种新的控制拓扑将被开发，它集成了鲁棒控制理论、调制频率控制、在线系统辨识和自适应控制，以创建可靠的节能悬浮系统。电能质量问题具有巨大的经济影响。电力研究所估计，电力波动和停电损失超过1000亿美元/年。这些问题中的大多数都是停机、激增和持续几秒钟的低谷。电力环飞轮是一种经济高效的维持电力系统稳定的方法，它将储存的能量注入电网，使系统在扰动中保持稳定。它可以作为一种快速响应的储能装置，允许控制电网的潮流和频率，并提高电网的稳定性和电能质量/可靠性。与目前使用空转发电站(通常是燃煤发电站)为频率调节应用提供备用的方法相比，飞轮更有效，污染更少。飞轮具有更长的寿命、更低的维护成本，并且不像用于电能质量应用的电池存储系统那样含有有毒化学物质。飞轮的高功率密度和循环寿命使其成为可再生交通应用的使能技术。该奖项是根据2009年《美国复苏和再投资法案》(公法111-5)提供资金的。