Question

For a system whose transfer function is G(s) =10/s (1+s), what are the dynamic error coefficients k2 & k3 respectively as k1 is infinity?

(a) 11, 10.1

(b) 10.1, 11

(c) 10, 11.1

(d) 9, 10.1

I got this question in my homework.

Origin of the question is Steady State Error topic in portion Error Analysis of Control Systems

Answer 1

Right answer is (c) 10, 11.1

The best explanation: We should compare it with E(s)/R(s) = 1/k1+1/k2s+1/k3s^2.  G(s) = 10/s(1+s) is compared with the above equation which is the parent equation for calculating dynamic error constants where k1 comes as infinity and K2, K3 takes the value of 10 & 11.1 respectively.