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Derivative error compensation:

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in Control Systems by (105k points)
Derivative error compensation:

(a) Improvement in transient response

(b) Reduction in steady state error

(c) Reduction is settling time

(d) Increase in damping constant

I got this question during an interview.

The origin of the question is Tuning of PID Controllers topic in chapter Design of Control Systems

1 Answer

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Best answer
Correct choice is (d) Increase in damping constant

Best explanation: Damping constant reduces the gain, as it is inversely proportional to the gain and as increasing the damping gain reduces and hence the speed of response and bandwidth are both increased.

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