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Title: Converter topologies and control

Patent ·
OSTI ID:1437250

An inverter includes a transformer that includes a first winding, a second winding, and a third winding, a DC-AC inverter electrically coupled to the first winding of the transformer, a cycloconverter electrically coupled to the second winding of the transformer, an active filter electrically coupled to the third winding of the transformer. The DC-AC inverter is adapted to convert the input DC waveform to an AC waveform delivered to the transformer at the first winding. The cycloconverter is adapted to convert an AC waveform received at the second winding of the transformer to the output AC waveform having a grid frequency of the AC grid. The active filter is adapted to sink and source power with one or more energy storage devices based on a mismatch in power between the DC source and the AC grid.

Research Organization:
SunPower Corporation, San Jose, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0005341
Assignee:
SunPower Corporation (San Jose, CA)
Patent Number(s):
9,960,712
Application Number:
15/080,110
OSTI ID:
1437250
Resource Relation:
Patent File Date: 2016 Mar 24
Country of Publication:
United States
Language:
English

References (15)

Gate drive circuit for insulated gate semiconductor device and flash controller using the circuit patent August 1992
A.C. power supply apparatus patent March 1993
Power conversion and distribution system patent November 1999
Soft-switched quasi-single-stage (QSS) bi-directional inverter/charger patent December 2001
Multifunction hybrid intelligent universal transformer patent October 2005
Apparatus for converting direct current to alternating current using an active filter to reduce double-frequency ripple power of bus waveform patent October 2012
Active filter patent-application June 2005
Power supply circuit, back-pack power supply module and circuit interrupter including the same patent-application November 2006
Control scheme for DC/AC cycloconverter patent-application March 2008
Apparatus For Converting Direct Current To Alternating Current patent-application February 2011
GRID-TIED POWER CONVERSION CIRCUITS AND RELATED TECHNIQUES patent-application July 2011
Photovoltaic Units, Methods Of Operating Photovoltaic Units And Controllers Therefor patent-application April 2012
Converter Topologies patent-application September 2014
Multi-Bridge Topology patent-application October 2014
Three-Port Series-Resonant DC–DC Converter to Interface Renewable Energy Sources With Bidirectional Load and Energy Storage Ports journal October 2009

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