For a negative unity feedback system, using Routh-Hurwitz criterion for stability, determine the value of K for which the system is marginally stable. Express your answer into two decimal places. No credit if no solution is provided. K G (s) (1 + 0.5s) (1 + 0.5s + 0.25s²) H(s) = 1

For a negative unity feedback system, using Routh-Hurwitz criterion for stability, determine the value of K for which the system is marginally stable. Express your answer into two decimal places. No credit if no solution is provided. K G (s) (1 + 0.5s) (1 + 0.5s + 0.25s²) H(s) = 1

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.1P

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Question

For a negative unity feedback system, using Routh-Hurwitz criterion for
stability, determine the value of K for which the system is marginally
stable. Express your answer into two decimal places. No credit if no
solution is provided.
K
G(s) =
(1+0.5s) (1 + 0.5s + 0.25s2)
H(s) = 1

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