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

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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Resource Relation:
Patent File Date: 2014 Feb 07
Research Org:
ABB Schweiz AG, Baden, CH (Switzerland)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

AC-AC Converter with High Frequency Link
patent-application, January 2010

A practical PWM AC controller topology
conference, January 1992

Simple topologies for single phase AC line conditioning
journal, January 1994
  • Chingchi, Chen; Divan, D. M.
  • IEEE Transactions on Industry Applications, Vol. 30, Issue 2, p. 406-412
  • DOI: 10.1109/28.287516

Design and implementation of a 25-kVA three-phase PWM AC line conditioner
journal, July 1994
  • Vincenti, D.; Jin, Hua; Ziogas, P.
  • IEEE Transactions on Power Electronics, Vol. 9, Issue 4, p. 384-389
  • DOI: 10.1109/63.318896

An improved PWM technique for AC choppers
journal, January 1989
  • Choe, G.-H.; Wallace, A. K.; Park, M.-H.
  • IEEE Transactions on Power Electronics, Vol. 4, Issue 4, p. 496-505
  • DOI: 10.1109/63.41778

An approach to realize higher power PWM AC controller
conference, January 1993

Asymmetrical PWM technique with harmonic elimination and power factor control in AC choppers
journal, March 1995
  • Jang, Do-Hyun; Choe, Gyu-Ha; Ehsami, M.
  • IEEE Transactions on Power Electronics, Vol. 10, Issue 2, p. 175-184
  • DOI: 10.1109/63.372602

Novel line conditioner with voltage up/down capability
journal, October 2002
  • Kwon, Bong-Hwan; Jeong, Gang-Youl; Han, Sung-Hoon
  • IEEE Transactions on Industrial Electronics, Vol. 49, Issue 5, p. 1110-1119
  • DOI: 10.1109/TIE.2002.803236

Simple topologies of PWM AC-AC converters
journal, March 2003
  • Peng, Fang Zheng; Chen, Lihua; Zhang, Fan
  • IEEE Power Electronics Letters, Vol. 1, Issue 1, p. 10-13
  • DOI: 10.1109/LPEL.2003.814961

AC chopper topology with multiple steps switching capability
conference, September 2010

Review of Three-Phase PWM AC–AC Converter Topologies
journal, November 2011
  • Kolar, Johann W.; Friedli, Thomas; Rodriguez, Jose
  • IEEE Transactions on Industrial Electronics, Vol. 58, Issue 11, p. 4988-5006
  • DOI: 10.1109/TIE.2011.2159353