Modular isolated power electronics converter for hvac/mvac to lvdc power conversion

A system, comprising:

• a plurality of three-phase blocks connected in series, individual three-phase blocks of the plurality of three-phase blocks comprising a plurality of single-phase modules connected in an input-series output-parallel configuration, and individual single-phase modules of the plurality of single-phase modules comprising:
• an active front-end bridge;
• a dual active bridge converter comprising a primary bridge and a secondary bridge;
• a decoder configured to receive encoded gate pulses and control an operation of the active front-end bridge based at least in part on the encoded gate pulses;
• and
• a medium-voltage direct current bus shared by the active front-end bridge and the dual active bridge converter;
• a filter connected between a grid input and the plurality of three-phase blocks;
• and
• a pulse-width modulator configured to generate the encoded gate pulses for the individual three-phase blocks of the plurality of three-phase blocks.

An apparatus, comprising:

• a low-voltage direct current bus;
• a centralized controller configured to regulate the low-voltage direct current bus;
• a plurality of three-phase blocks connected in series;
• a filter connected between a grid input and the plurality of three-phase blocks;
• and
• a pulse-width modulator configured to generate encoded gate pulses for individual three-phase blocks of the plurality of three-phase blocks.