Multilevel Secondary DC Port Multilevel Inverter and Method of Operation Multilevel Secondary DC Port Multilevel Inverter

摘要

The present invention discloses a top-level secondary bi-directional dc-gate inverter and a method of operation of the secondary two-way dc-port multilevel inverter. specifically, the present invention comprises at least one arm which comprises at least one main dc port to which the main voltage source (vp) connects, a secondary dc port to which the secondary voltage source (vsx) connects, (which may be an energy storage system), a secondary filter (fs) and an ca (cax) port. The present invention aims to control the power flow at the ac (cax) port and the two dc ports, which can be positive or negative independently and as needed, provided that the power balance is respected. The invention further comprises a modulation and control system for defining switching vectors. The present invention is in the fields of static converter / inverter circuits and electrical engineering.