Abstract
A model of a plant can never be perfect, and as such will always be an approximation to the true plant. Often certain characteristics of a plant will not be modelled at all. This is either because their contribution to the overall behaviour is small, or because they are not easily modelled. Furthermore, the plant’s dynamics may change during long-term operation. To address the difference between modelled and true plants, various measures of robustness are used. A controller is said to exhibit good robust stability if it remains stable for all variations in plant behaviour which are reasonably expected to occur. Similarly a controller is said to exhibit good robust performance if it carries on performing satisfactorily for all encountered plant variations.
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© 1995 Springer-Verlag London Limited
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Hyde, R.A. (1995). The Motivation for Robust Control. In: H ∞ Aerospace Control Design. Advances in Industrial Control. Springer, London. https://doi.org/10.1007/978-1-4471-3049-9_2
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DOI: https://doi.org/10.1007/978-1-4471-3049-9_2
Publisher Name: Springer, London
Print ISBN: 978-1-4471-3051-2
Online ISBN: 978-1-4471-3049-9
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