Abstract:SUMMARYThis paper proposes the safest novel commutation method for a matrix converter. There are two conventional commutation methods which depend on the polarity of the input line voltage (it is called "voltage commutation") and depend on the polarity of the output current (it is called "current commutation"). However, problem of the voltage commutation is that commutation failure occurs around zero of the input line voltage. It is difficult to detect its polarity due to depending on offset and delay of the s… Show more
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