Page 1 of 1
Question 4 A motor modelled by 8 G(s) s+4 is controlled by an analogue compensator 2s + 1 D(S) = S + 3 where the gain K
Posted: Sun May 15, 2022 2:45 pm
by answerhappygod
- Question 4 A Motor Modelled By 8 G S S 4 Is Controlled By An Analogue Compensator 2s 1 D S S 3 Where The Gain K 1 (37.92 KiB) Viewed 32 times
Question 4 A motor modelled by 8 G(s) s+4 is controlled by an analogue compensator 2s + 1 D(S) = S + 3 where the gain K is a positive constant. The control system is to be implemented K digitally with a sampling period T = 0.2 seconds. (a) Show that the corresponding z-transfer function of the DC motor preceded by a zero order hold (ZOH) is given by 1.10 Ga(z) = Z-0.45 [6 marks] (b) Use the pole-zero mapping method to show that a digital approximation to the analogue compensator D(s) is given by 1.5(z - 0.90) Da(z) = K 2-0.55 Is markel