Control of Uncertain Time-Varying Systems Based on Robust Predictive Control Technique and Localized Time-Frequency Concepts

基于鲁棒预测控制技术和局部时频概念的不确定时变系统控制

• 批准号: 9612079
• 负责人: Joseph Bentsman
• 金额: $ 15万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-11-01 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9612079&HistoricalAwards=false
• 关键词: Control; Uncertain; Time; Varying; Systems

This research projects deals with control of the start-up and shut-down of boilers in uncertain time-varying systems such as power plants using robust predictive control techniques and localized time-frequency concepts. Specifically, it develops strategies for synthesis of suboptimal robust controllers of reduced computational complexity. Such control algorithms serves as enabling technologies for the next generation operating regimes for power plants as well as a guide for the future control-driven power plant designing and other complex mechanical systems. The approach utilizes an extension of H-infinity productive control methodology, and a method of evaluation and representation of unmodeled plant dynamics to time varying case. On this basis it develops a new time-frequency localized framework for robust predictive control of time-varying plants which utilizes the wavelet-based complexity reduction o the computation of control laws, and reduction in controller conservativeness due to the time-frequency localized representation of model uncertainty.

该研究项目涉及使用稳健的预测控制技术和局部时频概念来控制不确定时变系统（例如发电厂）中锅炉的启动和关闭。具体来说，它开发了合成降低计算复杂性的次优鲁棒控制器的策略。此类控制算法可作为下一代发电厂运行机制的使能技术，并为未来控制驱动的发电厂设计和其他复杂机械系统提供指导。该方法利用 H-infinity 生产控制方法的扩展，以及对时变情况的未建模工厂动态进行评估和表示的方法。 在此基础上，它开发了一种新的时频局部框架，用于时变对象的鲁棒预测控制，该框架利用基于小波的控制律计算复杂性降低，以及由于模型不确定性的时频局部表示而降低控制器保守性。