Universal Power Electronics Building Block (U-PEBB) Based Delta-Connected Cascade Multilevel Converter

A multilevel converter consisting of a bi-directional and isolated ac to dc converter module using commercial semiconductor devices.  With a very high-power density, the converter system is configured directly from a medium voltage grid by plug-and-play for solid state transformers to extreme fast charging stations to grid-tied converters that interface with renewable energy, storage elements, static synchronous compensators, and static var compensators. Manufacturing and installation costs are reduced significantly.