Abstract
One of the now classical methods of testing closed-loop stability as a function of plant model and of control loop structure is based upon complex variable theory, with the particular application due to Nyquist. The idea is subtle for beginners but is basically straightforward. It has been applied to basic stability testing, to certain non-linear systems, to multivariable systems, and to developing the concepts of relative stability.
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© 1995 Springer Science+Business Media Dordrecht
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Westphal, L.C. (1995). Nyquist stability theory. In: Sourcebook of Control Systems Engineering. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1805-1_15
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DOI: https://doi.org/10.1007/978-1-4615-1805-1_15
Publisher Name: Springer, Boston, MA
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Online ISBN: 978-1-4615-1805-1
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