Abstract
This work explains the concept of a simple cycloconverter. It is proved that one controlled rectifier supplying a bridge inverter performs similarly to a conventional cycloconverter if the converter output-voltage modulation and the inverter switching sequency are synchronized. While the required firing system remains almost unchanged, the number of power solid-state components is significantly reduced. A three-phase 1-to 5-Hz 5-kVA unit was built and typical oscillograms are presented.
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