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Stability of control systems with time delay

Stability of control systems with time delay

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To find the approximate stability limit on the forward gain in control systems with small time delay, this note suggests approximating the exponential in the characteristic equation by the first few terms of its series and using the Routh–Hurwitz criterion. This approximation avoids all the time-consuming graphical work and gives a somewhat pessimistic maximum bound for the gain constant.

Inspec keywords: stability

Subjects: Control applications

References

    1. 1)
      • B.C. Kuo . (1991) , Automatic control systems.
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