Single phase regeneration with a polyphase rectification power circuit

摘要

A polyphase rectifier power circuit with single phase regenerative capability provides motoring power from a polyphase supply and returns single phase regenerative power to the supply. One embodiment uses pulse width modulation of the regenerative rectifier to limit line- to-line current flow through the regenerative rectifier during regeneration while another embodiment uses 180° conduction in the regenerative rectifier with the substitution of two thyristors for two diodes in the rectifier.