Method and apparatus for bypassing cascaded H-Bridge (CHB) power cells and power sub cell for multilevel inverter

摘要

Bypassing methods and apparatus are presented along with power cells (100) and sub cells (400) for multilevel invertersn (10) in which DC current flow into a DC link capacitance is interrupted by means of a disconnection switch (101) and a bypass switch (102) is closed across a power cell (100) or sub cell (400) output (104) to selectively bypass a power stage of a multilevel inverter (10).