Physics · Control Systems
Which of the following statements is correct regarding lead or lag compensation in control systems?
- 1The lag compensator improves the steady-state performance of the system.✓
- 2The lead compensation becomes effective when the phase angle of the uncompensated system decreases rapidly near the gain crossover frequency.
- 3A lead compensator is chosen when a reduced noise level is required.
- 4The combination of decreased open-loop gain and a lead compensator improves steady-state error and phase margin.
Correct answer
The lag compensator improves the steady-state performance of the system.
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