Holistic control of three-phase bidirectional rectifiers

Presented is a simple analog (albeit permitting lowcomplexity digital implementation) approach to control of three-phase 6-switch bidirectional boost rectifiers with high power quality. The described controller (referred to as an Inductor Current Mapping, or ICM, controller) holistically incorporates flexible regulation options, startup, EMI, and overload management, “wild” frequency compatibility, and tolerance to mains voltage imbalance and/or phase loss. It also enables easy load sharing and +1 redundancy, and offers multiple ways to optimize the cost-size-weight-performance tradespace.