Which one of the following is an advantage of a PD controller in terms of damping and natural frequency?
A. G remains fixed but natural frequency increases
B. G remains fixed but natural frequency decreases
C. Natural frequency fixed but G increases
D. Natural frequency fixed but G decreases
Answer:C
Which one of the following is an advantage of a PD controller in terms of damping and natural frequency?
A. G remains fixed but natural frequency increases B. G remains fixed but natural frequency decreases C. Natural frequency fixed but G increases D. Natural frequency fixed but G decreases
Explanation: Comparing with the characteristic equation natural frequency remains fixed but the value of G that increases hence the transient response is improved.