Document Type
Article
Publication Date
7-1-2014
Publication Title
ISA Transactions
Abstract
In this paper, it is shown that the problem of automatic control is, in essence, that of disturbance rejection, with the notion of disturbance generalized to symbolize the uncertainties, both internal and external to the plant. A novel, unifying concept of disturbance rejector is proposed to compliment the traditional notion of controller. The new controller-rejector pair is shown to be a powerful organizing principle in the realm of automatic control, leading to a Copernican moment where the model-centric design philosophy is replaced by the one that is control-centric in the following sense: the controller is designed for a canonical model and is fixed; the difference between the plant and the canonical model is deemed as disturbance and rejected.
Repository Citation
Gao, Zhiqiang, "On the centrality of disturbance rejection in automatic control" (2014). Electrical and Computer Engineering Faculty Publications. 280.
https://engagedscholarship.csuohio.edu/enece_facpub/280
DOI
10.1016/j.isatra.2013.09.012
Version
Postprint
Publisher's Statement
NOTICE: this is the author’s version of a work that was accepted for publication in ISA Transactions. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in ISA Transactions, 53, 4, (07-01-2014); 10.1016/j.isatra.2013.09.012
Volume
53
Issue
4
