The offset introduced by proportional controller with gain Kc in response of first order system can be reduced by ____________________?
Correct answer: A. Introducing integral control
- A. Introducing integral control
- B. Reducing value of Kc
- C. Introducing derivative control
- D. None of the above
Explanation
Proportional-only control leaves a steady-state offset when a sustained error is needed to produce the required output. Integral action accumulates this error and removes the offset, whereas derivative action mainly improves response to changing error.
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