NSF Young Investigator

NSF 青年研究员

• 批准号: 9358288
• 负责人: Mario Rotea
• 金额: $ 29.5万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-10-01 至 2001-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9358288&HistoricalAwards=false
• 关键词: NSF; Young; Investigator

9358288 Rotea As in other areas of engineering, design of control systems involves tradeoffs among competing objectives. The basic problem is to find a controller that optimizes several competing performance and robustness requirements associated with one dynamical system. Good tracking of reference inputs vs low sensitivity to sensor noise, robust stability vs performance, are just a few examples of these tradeoffs. Clearly, it is important to develop tools to help the designer understand how the various competing objectives conflict with each other. One goal of this research is to obtain design procedures for the synthesis of controllers that meet several design specifications in the presence of uncertainty in the plant description. It is intuitively obvious that the performance of a given system may be greatly improved if the plant to be controlled and the controller are designed simultaneously rather than designing the plant first and then the controller. Unfortunately, in some cases of engineering relevance, an integrated plant/controller design is not feasible due to the large number of variables and design objectives. However, there are some challenging aerospace problems for which such an integration is not only feasible but also desirable. Another goal of this research is to develop a methodology for the design of systems (i.e. both plant and controller are to be designed) that satisfy multiple design specifications of practical significance. This research has three main components: (1) the development of new theoretical results for the analysis and synthesis of robust feedback systems with multiple design specifications, (2) the development of computational efficient algorithms to implement the theory, and (3) applications to validate the results. ***

9358288 Rotea与其他工程领域一样，控制系统的设计涉及相互竞争的目标之间的权衡。基本问题是找到一个控制器来优化与一个动态系统相关的几个竞争性能和鲁棒性要求。良好的参考输入跟踪vs对传感器噪声的低灵敏度，稳健的稳定性vs性能，只是这些权衡的几个例子。显然，开发工具来帮助设计师理解各种相互竞争的目标是如何相互冲突的是很重要的。本研究的一个目标是获得在存在不确定性的植物描述中满足几个设计规范的控制器的综合设计程序。直观上很明显，如果要控制的对象和控制器同时设计，而不是先设计对象再设计控制器，则给定系统的性能可能会大大提高。不幸的是，在一些工程相关的情况下，由于大量的变量和设计目标，集成的工厂/控制器设计是不可行的。然而，对于一些具有挑战性的航空航天问题，这种集成不仅是可行的，而且是可取的。本研究的另一个目标是开发一种系统设计方法（即要设计工厂和控制器），以满足多种具有实际意义的设计规范。本研究有三个主要组成部分：(1)为分析和综合具有多种设计规范的鲁棒反馈系统开发新的理论结果，(2)开发计算效率高的算法来实现理论，以及(3)验证结果的应用。＊＊＊