Question: = = is to be controlled by a PD controller. Go Kc(1+TDs). The s+1 A process with the transfer function Gp measurement element Gm(s) is

= = is to be controlled by a PD controller. Go Kc(1+TDs). The s+1 A process with the transfer function Gp measurement element Gm(s) is = 1 The control valve (G) and Km are both 1. Derive the closed loop transfer function and based on the characteristic equation derive expressions for t and { (Hint: compare the characteristic equation with the standard second order,ts+2ts+1, system to get T and E). Determine the value of for (a) Tp = 0 and Kc = 4.167 (b) Tp = 0.05 and Kc = 22. In which case (a) or (b), do you expect more oscillatory response. Compare the offset in the two cases. Y sp Y sp Y E P U Km GU Gp SHER Ym Gm
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