Multi-phase AC/AC step-down converter for distribution systems

Aeloiza, Eddy C.; Burgos, Rolando P.

Title: Multi-phase AC/AC step-down converter for distribution systems

Patent · Wed Oct 25 00:00:00 EDT 2017

OSTI ID:1404705

Aeloiza, Eddy C.; Burgos, Rolando P.

A step-down AC/AC converter for use in an electric distribution system includes at least one chopper circuit for each one of a plurality of phases of the AC power, each chopper circuit including a four-quadrant switch coupled in series between primary and secondary sides of the chopper circuit and a current-bidirectional two-quadrant switch coupled between the secondary side of the chopper circuit and a common node. Each current-bidirectional two-quadrant switch is oriented in the same direction, with respect to the secondary side of the corresponding chopper circuit and the common node. The converter further includes a control circuit configured to pulse-width-modulate control inputs of the switches, to convert a first multiphase AC voltage at the primary sides of the chopper circuits to a second multiphase AC voltage at the secondary sides of the chopper circuits, the second multiphase AC voltage being lower in voltage than the first multiphase AC voltage.

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Research Organization:: ABB Schweiz AG, Baden, CH (Switzerland)

Sponsoring Organization:: USDOE

DOE Contract Number:: AR0000141

Assignee:: ABB Schweiz AG

Patent Number(s):: 9,800,167

Application Number:: 14/175,461

OSTI ID:: 1404705

Resource Relation:: Patent File Date: 2014 Feb 07

Country of Publication:: United States

Language:: English

References (29)

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