Adaptive Control: Design Trade-Offs, Robustness, Performance

自适应控制：设计权衡、鲁棒性、性能

• 批准号: 9119722
• 负责人: Petros Ioannou
• 金额: $ 10万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-15 至 1995-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9119722&HistoricalAwards=false
• 关键词: Adaptive; Control; Design; Trade; Offs

Despite the recent advances in the area of adaptive control, most of today's adaptive control schemes often exhibit poor transient and steady-state performance. Phenomena such as bursting, chaos and large transient oscillations are often observed in simulations of stable adaptive schemes. The proposed research aims to eliminate these undesirable phenomena by studying new design approaches and introducing the appropriate mathematical tools that can be used to quantify and analyze transient and steady state performance in addition to stability and robustness. The design approaches proposed are based on the augmentation of the certainty equivalence control laws that are used in almost every adaptive control scheme, by using performance considerations in addition to stability and robustness. Such augmentation includes discontinuous control laws as well as smooth ones. The research goal is to develop a procedure for designing and analyzing adaptive control schemes that can meet prespecified performance and robustness requirements.

尽管自适应控制领域最近取得了进展，但目前大多数自适应控制方案往往表现出较差的瞬态和稳态性能。在稳定自适应方案的模拟中，经常观察到爆裂、混沌和大的瞬态振荡等现象。提出的研究旨在通过研究新的设计方法和引入适当的数学工具来消除这些不良现象，这些数学工具可用于量化和分析除稳定性和鲁棒性外的瞬态和稳态性能。所提出的设计方法是基于对几乎所有自适应控制方案中使用的确定性等效控制律的增强，除了考虑稳定性和鲁棒性外，还考虑了性能。这种增广既包括不连续控制律，也包括光滑控制律。研究目标是开发一种程序来设计和分析能够满足预定性能和鲁棒性要求的自适应控制方案。