SWITCHING CONTROL METHOD OF MODULAR MULTILEVEL CONVERTER FOR AVERAGED SWITCHING AND CALCULATION TIME REDUCING

摘要

The present invention relates to a module-type multi-level converter switching method, more specifically, to a module-type multi-level converter switching method which can minimize calculation time of a sub-module to be switched. Life expectancy of a converter can be extended by avoiding a concentrated utility coefficient on a specific sub-module by leveling off the sub-module switching utilization rate.