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PD controller is used to compensate a system, Compared to the uncompensated system, the compensated system has:

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PD controller is used to compensate a system, Compared to the uncompensated system, the compensated system has:

(a) A higher type number

(b) Reduced damping

(c) Higher noise amplification

(d) Large transient overshoot

I got this question by my school teacher while I was bunking the class.

The question is from Cascade Compensation in Time Domain in portion Design of Control Systems

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Right choice is (c) Higher noise amplification

The best explanation: The compensated system of the proportional derivative controller has bandwidth increases and signal to noise ratio decreases.

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