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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 overshootI 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

Answer»

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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