CAREER: Robust Design of Adaptive Nonlinear Control

职业：自适应非线性控制的鲁棒设计

• 批准号: 9502945
• 负责人: Ioannis Kanellakopoulos
• 金额: $ 28万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9502945&HistoricalAwards=false
• 关键词: CAREER; Robust; Design; Adaptive; Nonlinear

9502945 Kanellakopoulos Since most physical systems contain nonlinearities and unknown parameters, adaptive control of nonlinear systems is directly relevant to practical applications. The Principal Investigator's previous research resulted in several new systematic design procedures which deliver high performance over large operating regions without an increase in control effort and without requiring full-state measurements. The proposed research plan will continue the development of a new generation of adaptive systems, in which the nonadaptive part of the controller is capable of guaranteeing boundedness, while adaption is used only for the improvement of transient an asymptotic performance. Additional design tools will be developed that not only result in even stronger stability and performance properties, but are also applicable to larger classes of nonlinear systems, and characterize those classes via geometric conditions. The new tools will be applied to problems which are of importance to commercial applications such as induction motors, the automated operation of heavy-duty vehicles on intelligent highways and semiconductor manufacturing processes, and will develop cooperative research efforts with interested industrial sponsors. The proposed education plan will develop several new undergraduate and graduate courses on linear, nonlinear and adaptive control, as well as an undergraduate laboratory control course. Furthermore, it will enhance the teaching effectiveness of control systems through the early introduction on nonlinear examples and concepts in order to stimulate student interest and ensure their understanding of the fact that linear control theory can only yield regional results for most physical systems. In addition, the education plan includes graphical and symbolic software into the undergraduate and graduate control curriculum, so that students can spend less time deriving complicated expressions and coding them into a simulatio n package, and more time exploring design options, comparing different approaches, and watching the results of their efforts come alive through animation and visual simulation. ***

由于大多数物理系统都包含非线性和未知参数，非线性系统的自适应控制直接关系到实际应用。首席研究员之前的研究产生了几个新的系统设计程序，在不增加控制工作和不需要全状态测量的情况下，在大的操作区域提供高性能。提出的研究计划将继续开发新一代自适应系统，其中控制器的非自适应部分能够保证有界性，而自适应仅用于改善暂态和渐近性能。其他设计工具将被开发出来，不仅会产生更强的稳定性和性能，而且还适用于更大类别的非线性系统，并通过几何条件表征这些类别。这些新工具将应用于对商业应用具有重要意义的问题，例如感应电机、重型车辆在智能公路上的自动操作和半导体制造工艺，并将与感兴趣的工业赞助商开展合作研究工作。提出的教育计划将开设几门新的本科和研究生课程，包括线性、非线性和自适应控制，以及一门本科实验控制课程。此外，通过早期引入非线性的例子和概念，它将提高控制系统的教学效果，以激发学生的兴趣，并确保他们理解线性控制理论只能对大多数物理系统产生区域结果的事实。此外，该教育计划将图形和符号软件纳入本科和研究生的控制课程，使学生可以花更少的时间推导复杂的表达式并将其编码到模拟包中，而花更多的时间探索设计选项，比较不同的方法，并通过动画和视觉模拟来观察他们努力的结果。* * *