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Consider the following statements for a PI compensator for control system. 1. It is equivalent to adding a zero at origin 2. It reduces overshoot 3. It improves the steady state error of the system Which of the statements given above are correct?

Consider the following statements for a PI compensator for control system. 1. It is equivalent to adding a zero at origin 2. It reduces overshoot 3. It improves the steady state error of the system Which of the statements given above are correct? Correct Answer 2 and 3

PI(PROPORTIONAL INTEGRAL) compensator adds one open loop pole at origin and open loop zero at negative real axis. So it improves steady state error and reduces overshoot of the system .

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