Variable frequency iteration MPPT for resonant power converters
Abstract
A method of maximum power point tracking (MPPT) uses an MPPT algorithm to determine a switching frequency for a resonant power converter, including initializing by setting an initial boundary frequency range that is divided into initial frequency subranges bounded by initial frequencies including an initial center frequency and first and second initial bounding frequencies. A first iteration includes measuring initial powers at the initial frequencies to determine a maximum power initial frequency that is used to set a first reduced frequency search range centered or bounded by the maximum power initial frequency including at least a first additional bounding frequency. A second iteration includes calculating first and second center frequencies by averaging adjacent frequent values in the first reduced frequency search range and measuring second power values at the first and second center frequencies. The switching frequency is determined from measured power values including the second power values.
 Inventors:
 Issue Date:
 Research Org.:
 University of Central Florida Research Foundation, Inc., Orlando, FL (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 1187930
 Patent Number(s):
 9071150
 Application Number:
 14/272,110
 Assignee:
 University of Central Florida Research Foundation, Inc. (Orlando, FL)
 Patent Classifications (CPCs):

Y  NEW / CROSS SECTIONAL TECHNOLOGIES Y02  TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02B  CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED ENDUSER APPLICATIONS
H  ELECTRICITY H02  GENERATION H02M  APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
 DOE Contract Number:
 EE0003176
 Resource Type:
 Patent
 Resource Relation:
 Patent File Date: 2014 May 07
 Country of Publication:
 United States
 Language:
 English
 Subject:
 14 SOLAR ENERGY; 24 POWER TRANSMISSION AND DISTRIBUTION; 97 MATHEMATICS AND COMPUTING
Citation Formats
Zhang, Qian, Bataresh, Issa, and Chen, Lin. Variable frequency iteration MPPT for resonant power converters. United States: N. p., 2015.
Web.
Zhang, Qian, Bataresh, Issa, & Chen, Lin. Variable frequency iteration MPPT for resonant power converters. United States.
Zhang, Qian, Bataresh, Issa, and Chen, Lin. Tue .
"Variable frequency iteration MPPT for resonant power converters". United States. https://www.osti.gov/servlets/purl/1187930.
@article{osti_1187930,
title = {Variable frequency iteration MPPT for resonant power converters},
author = {Zhang, Qian and Bataresh, Issa and Chen, Lin},
abstractNote = {A method of maximum power point tracking (MPPT) uses an MPPT algorithm to determine a switching frequency for a resonant power converter, including initializing by setting an initial boundary frequency range that is divided into initial frequency subranges bounded by initial frequencies including an initial center frequency and first and second initial bounding frequencies. A first iteration includes measuring initial powers at the initial frequencies to determine a maximum power initial frequency that is used to set a first reduced frequency search range centered or bounded by the maximum power initial frequency including at least a first additional bounding frequency. A second iteration includes calculating first and second center frequencies by averaging adjacent frequent values in the first reduced frequency search range and measuring second power values at the first and second center frequencies. The switching frequency is determined from measured power values including the second power values.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {6}
}
Works referenced in this record:
Method and apparatus for controlling a DC to AC inverter system by a plurality of pulsewidth modulated pulse trains
patent, April 1997
 Nakata, Hirofumi; Kodama, Hirokazu; Takebayashi, Tsukasa
 US Patent Document 5,625,539
Output power factor control of pulsewidth modulated inverter
patent, February 2010
 Garabandic, Djordje
 US Patent Document 7,660,139