Question

List some industrial control methods for induction machines including power electronics-based control.

List some industrial control methods for induction machines including power electronics-based control.

Homework Answers

Answer #1

Some industrial control methods for speed control of induction motor-

1) by changing the applied voltage

2) by changing the frequency of operation that is acquired using power electronics devices

3) but in voltage control a large change in voltage is required for a small change in speed that affects in large change in flux and makes it saturated, so another effective method V/f control is used.

4) if the motor is not squirrell cage then the speed can also be varied by changing the rotor resistance.

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