Difference between circulating and non circulating current in dual converter
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Dual converter- the name itself indicates that it has two converters in it. It is an electric device mostly found in variable speed drivers. It is a power electronics control system to get either polarity DC from AC rectification by the forward converter and reverse converter. In a dual converter, two converters are connected together back to back.
One of the bridge works as a rectifier (converts AC to DC), another half bridge works as an inverter (converts DC to AC) and connected commonly to a DC load. Here two conversion processes take place simultaneously, so it is called as a dual converter. The dual converter can provide four quadrant operations. The four quadrant operation is shown below.
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