Abstract
The design of feedback control systems in industry is often carried out using frequency-response (FR) methods. Frequency-response design is used primarily because it provides good designs in the face of uncertainty in the plant model. For example, for systems with poorly known or changing high-frequency resonances, we can temper the feedback design to alleviate the effects of those uncertainties. This tempering can be carried out more easily using FR design without extensive modeling of the uncertainties. The method is most effective for systems that are stable in open loop; however, it can also be applied to systems with instabilities. This article will introduce the reader to methods of design using lead and lag compensation. It will also cover the use of FR design to reduce steady-state errors and to improve robustness to uncertainties in high-frequency dynamics.
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Bibliography
Franklin GF, Powell JD, Workman M (1998) Digital control of dynamic systems, 3rd edn. Ellis-Kagle Press, Half Moon Bay
Franklin GF, Powell JD, Emami-Naeini A (2019) Feedback control of dynamic systems, 8th edn. Pearson, Upper Saddle River
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© 2019 Springer-Verlag London Ltd., part of Springer Nature
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Powell, J.D., Ivler, C.M., Emami-Naeini, A. (2019). Classical Frequency-Domain Design Methods. In: Baillieul, J., Samad, T. (eds) Encyclopedia of Systems and Control. Springer, London. https://doi.org/10.1007/978-1-4471-5102-9_237-2
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DOI: https://doi.org/10.1007/978-1-4471-5102-9_237-2
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Print ISBN: 978-1-4471-5102-9
Online ISBN: 978-1-4471-5102-9
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Chapter history
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Latest
Classical Frequency-Domain Design Methods- Published:
- 01 November 2019
DOI: https://doi.org/10.1007/978-1-4471-5102-9_237-2
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Original
Classical Frequency-Domain Design Methods- Published:
- 25 August 2014
DOI: https://doi.org/10.1007/978-1-4471-5102-9_237-1