In variable frequency, PWM gain
Correct answer: A. Phase lead helps to increase the phase margin of the control loop
- A. Phase lead helps to increase the phase margin of the control loop
- B. Phase lag helps to increase the phase margin of the control loop
- C. Phase lead helps to decrease the phase margin of the control loop
- D. Phase lag helps to decrease the phase margin of the control loop
Explanation
A phase-lead compensator adds positive phase near the crossover frequency, increasing the phase margin and generally improving dynamic stability of the control loop.
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