Single-Phase Current-Source AC/DC/AC Conversion System with Reduced Switching Device Counts

摘要

Single-phase current source AC/DC/AC conversion system with reduced switching device counts is presented in the paper. Since current-source type has natural short circuit protection and switching device becomes more reliable, as well as new magnetic materials that allow to build more efficient and dense inductors, this technology is proposed as alternative solution for power electronic circuits. By applying duality principle to the single-phase voltage-source conversion system, the proposed conversion system can convert 100V/60Hz to 220V/50Hz with 84% efficiency as a result of the circuit simulation.