Virtual reference direct design method: An off-line approach to data-based control system design

被引:131
作者
Guardabassi, GO [1 ]
Savaresi, SM [1 ]
机构
[1] Politecn Milan, Dipartimento Elettr & Informat, I-20133 Milan, Italy
关键词
direct control; model reference control; system identification;
D O I
10.1109/9.855559
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper presents a direct model reference approach to the off-line design of linear controllers, suited to deal with plants described by a single set of open-loop I/O measurements only. The method is direct inasmuch as the controller parameters are directly estimated with no preliminary identification of any model to describe the plant. The design can be carried out off-line and, in the present formulation, lends to a nonadaptive controller. The basic idea is that of interpreting the open-loop I/O measurements of the plant as closed-loop data produced by a "virtual" reference signal that can be computed by backpropagating the measured output of the plant through the reference model; thus, the controller design reduces to a standard identification problem, in which the "output" signal to be matched is the measured input of the plant. Both a deterministic (noise free) and a stochastic setting are considered.
引用
收藏
页码:954 / 959
页数:6
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