Patent ID: 8299732

Claim:
A power conversion system, comprising: a multiphase autotransformer, comprising: an input operative to receive multiphase AC electrical currents from an isolation transformer or a multiphase AC power source, and an integer number N multiphase outputs, wherein N is greater than 1, each individual output including a set of an integer number M output terminals, wherein M is greater than 2, each individual output being operative to provide multiphase AC output currents at the output terminals, with the AC output currents of each multiphase output being at a non-zero phase angle relative to all other multiphase outputs; and a plurality of power converters, each individual power converter including: a DC output, and a multiphase rectifier operatively coupled with one of the multiphase outputs to convert the corresponding AC output currents to provide DC electrical power at the corresponding DC output to power a DC link having a choke, an inductance or a capacitance coupled between the multiphase rectifier and the DC output, the DC outputs of the plurality of power converters being separate from one another.