Abstract
Control structure selection deals with selecting what to control (outputs), what to measure and what to manipulate (inputs), and also how to split the controller in a hierarchical and decentralized manner. The most important issue is probably the selection of the controlled variables (outputs), CV = Hy, where y are the available measurements and H is a degree of freedom that is seldom treated in a systematic manner by control engineers. This entry discusses how to find H for both for the upper (slower) economic layer and the lower (faster) regulatory layer in the control hierarchy. Each layer may be split in a decentralized fashion. Systematic approaches for input/output (IO) selection are presented.
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Skogestad, S. (2021). Control Structure Selection. In: Baillieul, J., Samad, T. (eds) Encyclopedia of Systems and Control. Springer, Cham. https://doi.org/10.1007/978-3-030-44184-5_247
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DOI: https://doi.org/10.1007/978-3-030-44184-5_247
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