Patent ID: 8107267

Claim:
A power conversion system, comprising: a DC circuit comprising first and second DC current paths; an active rectifier comprising an AC input receiving AC electrical input power, and a rectifier switching network comprising a plurality of rectifier switching devices individually coupled between the AC input and one of the DC current paths of the DC circuit, the rectifier switching devices individually operable to selectively electrically couple the AC input with a corresponding DC current path according to a corresponding rectifier switching control signal; an inverter comprising a multi-phase AC connection having three or more AC terminals for supplying multi-phase AC electrical power, and an inverter switching network comprising a plurality of inverter switching devices individually coupled between one of the DC current paths and one of the AC terminals, the inverter switching devices individually operable to selectively electrically couple the corresponding DC current path with the corresponding AC terminal according to a corresponding inverter switching control signal; and a switch control system comprising a rectifier control component operatively coupled with the rectifier switching network to provide the rectifier switching control signals to selectively provide DC power to the DC circuit, and an inverter control component operatively coupled with the inverter switching network to provide the inverter switching control signals to cause the inverter to selectively provide multi-phase AC electrical power to the multi-phase AC connection, the switch control system providing either or both of the rectifier switching control signals and the inverter switching control signals by pulse width modulation according to a selected switching sequence corresponding to a sector of a space vector modulation diagram in which a reference vector is currently located, with each switching sequence using only active vectors with a first vector of each switching sequence differing by one phase switching state from a last vector of a switching sequence of an adjacent sector.