In square wave operation mode of 3 phase VSI, the VSI
Correct answer: C. Cannot control the load voltage except by means of dc link voltage
- A. Can control the load voltage
- B. Cannot control the load voltage
- C. Cannot control the load voltage except by means of dc link voltage
- D. Cannot control the load voltage except by means of dc link current
Explanation
In square-wave operation the switches have fixed conduction intervals, so the VSI cannot vary its output magnitude through modulation. The load voltage can only be adjusted by changing the DC-link voltage.
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