Multiple model adaptive control with safe switching
Multiple model adaptive control with safe switching
复制标题
DOI：
10.1002/acs.684
复制
发表时间：
2001-08
影响因子：
3.1
通讯作者：
B. Anderson;T. Brinsmead;D. Liberzon;A. Stephen Morse
中科院分区：
文献类型：
--
作者：
B. Anderson;T. Brinsmead;D. Liberzon;A. Stephen Morse
本文的目的是把多模型自适应控制和安全自适应控制这两个概念结合起来。在其最简单的形式中，多模型自适应控制涉及随着对工厂了解的更多而在有限数量的控制器中的一个控制器之间切换的管理器，直到最终选择控制器中的一个并且保持不变。安全自适应控制关注的是确保当控制器在自适应控制算法中改变时，冷冻设备-控制器组合永远不会（闭环）不稳定。这是一个不平凡的任务，因为根据自适应控制问题的定义，被控对象并不完全已知。所提出的解决方案方法涉及频率相关的性能指标，并采用Vinnicombe度量。由此产生的安全切换保证取决于闭环传递函数可以被准确识别的程度。版权所有© 2001约翰威利父子有限公司。
The purpose of this paper is to marry the two concepts of multiple model adaptive control and safe adaptive control. In its simplest form, multiple model adaptive control involves a supervisor switching among one of a finite number of controllers as more is learnt about the plant, until one of the controllers is finally selected and remains unchanged. Safe adaptive control is concerned with ensuring that when the controller is changed in an adaptive control algorithm, the frozen plant–controller combination is never (closed‐loop) unstable. This is a non‐trivial task since by definition of an adaptive control problem, the plant is not fully known. The proposed solution method involves a frequency‐dependent performance measure and employs the Vinnicombe metric. The resulting safe switching guarantees depend on the extent to which a closed‐loop transfer function can be accurately identified. Copyright © 2001 John Wiley & Sons, Ltd.