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Which of the following is not the correct reason to select feedback compensation over cascaded one?

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Which of the following is not the correct reason to select feedback compensation over cascaded one?

(a) No amplification is required as the energy transfer is from higher to lower level.

(b) Suitable devices are not available for compensation(series)

(c) It is economical

(d) Provides greater stiffness against load disturbances

The question was asked by my school principal while I was bunking the class.

This interesting question is from Realization of Basic Compensators topic in section Design of Control Systems

1 Answer

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Best answer
Right choice is (c) It is economical

Explanation: Feedback compensation is the compensation obtained due to feedback and cascade refers to the cascading of blocks in the forward path and feedback compensation is not preferred over cascading as it is ecenomical.

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