Question

In a dual converter, converter 2 is operated with a firing angle α2=180° - α1 where α1 is the firing angle of converter 1. Here, the purpose of converter 2 is to

1. Provide a return path for the circulating current

 

2. Supply the load power

 

3. Avoid commutation overlap

 

3. None of the above

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Answer 1

Explanation:

Dual converter, the name itself says two converters. It is really an electronic converter or circuit which comprises of two converters. One will perform as a rectifier and the other will perform as an inverter. Therefore, we can say that double processes will occur at a moment. Here, two full converters are arranged in anti-parallel pattern and linked to the same dc load. These converters can provide four quadrant operations. The basic block diagram is shown below.

dual converter

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