[1 marks (b) The open-loop transfer function (OLTF) of a unity feedback servomechanism system is given by: K(s + 10) G(s

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1 Marks B The Open Loop Transfer Function Oltf Of A Unity Feedback Servomechanism System Is Given By K S 10 G S 1 (25.53 KiB) Viewed 62 times

[1 marks (b) The open-loop transfer function (OLTF) of a unity feedback servomechanism system is given by: K(s + 10) G(s)H(s) = $3 where K is the open-loop gain. (1) investigate the condition(s) for the stability of the OLTF using the contour mapping technique and the Nyquist stability criterion. 17 marks) (6) sketch the Nyquist diagram of the system in the GH(jw)-plane and investigate the system's behaviour for varying K values. 16 marks) (ii) using the results from Part (1) show that the system is stable for K > 5.F. Validate your answer using the Routh-Hurwitz stability criterion 14 marks)