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Title: 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 sub-ranges 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):
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
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 END-USER APPLICATIONS
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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.
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Zhang, Qian, Bataresh, Issa, & Chen, Lin. Variable frequency iteration MPPT for resonant power converters. United States.
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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.
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@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 sub-ranges 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}
}
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