Gp(s) R(S) S C(s) (s + 2)(s? - 25) Figure Q2a The transfer function of an inverted pendulum plant is shown in Figure Q2a

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Gp S R S S C S S 2 S 25 Figure Q2a The Transfer Function Of An Inverted Pendulum Plant Is Shown In Figure Q2a 1 (107.76 KiB) Viewed 49 times

Gp(s) R(S) S C(s) (s + 2)(s? - 25) Figure Q2a The transfer function of an inverted pendulum plant is shown in Figure Q2a: In a desperate attempt to stabilise the plant in Figure Q2a, a novice control engineer designed a unity feedback control system that includes a proportional controller, Gc(s) = Kę, connected in cascade to the inverted pendulum plant. (c) With the aid of the root locus technique and the Routh-Hurwitz stability criterion, show that the feedback system is not stable for all positive values of K. [6 marks]