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Logemann, Hartmut; Townley, Stuart

The effect of small delays in the feedback loop on the stability of neutral systems. (English) Zbl 0866.93089

Syst. Control Lett. 27, No. 5, 267-274 (1996).
Summary: It is well-known that exponential stabilization of a neutral system with unstable difference operator is only possible by allowing for control laws containing derivative feedback. We show that closed-loop stability of a neutral system with unstable open-loop difference operator obtained by applying a derivative feedback scheme is extremely sensitive to arbitrarily small time delays in the feedback loop.

Cited in 29 Documents

MSC:

93D15 Stabilization of systems by feedback
34K35 Control problems for functional-differential equations

Keywords:

robustness; exponential stabilization; neutral system
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References:

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