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Title: Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants

Abstract

A distributed photovoltaic (PV) power plant includes a plurality of distributed dc-dc converters. The dc-dc converters are configured to switch in coordination with one another such that at least one dc-dc converter transfers power to a common dc-bus based upon the total system power available from one or more corresponding strings of PV modules. Due to the coordinated switching of the dc-dc converters, each dc-dc converter transferring power to the common dc-bus continues to operate within its optimal efficiency range as well as to optimize the maximum power point tracking in order to increase the energy yield of the PV power plant.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1157075
Patent Number(s):
8829715
Application Number:
13/097,196
Assignee:
General Electric Company (Niskayuna, NY)
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
DOE Contract Number:  
EE0000572
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Agamy, Mohammed, Elasser, Ahmed, Sabate, Juan Antonio, Galbraith, Anthony William, and Harfman Todorovic, Maja. Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants. United States: N. p., 2014. Web.
Agamy, Mohammed, Elasser, Ahmed, Sabate, Juan Antonio, Galbraith, Anthony William, & Harfman Todorovic, Maja. Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants. United States.
Agamy, Mohammed, Elasser, Ahmed, Sabate, Juan Antonio, Galbraith, Anthony William, and Harfman Todorovic, Maja. Tue . "Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants". United States. https://www.osti.gov/servlets/purl/1157075.
@article{osti_1157075,
title = {Switching coordination of distributed dc-dc converters for highly efficient photovoltaic power plants},
author = {Agamy, Mohammed and Elasser, Ahmed and Sabate, Juan Antonio and Galbraith, Anthony William and Harfman Todorovic, Maja},
abstractNote = {A distributed photovoltaic (PV) power plant includes a plurality of distributed dc-dc converters. The dc-dc converters are configured to switch in coordination with one another such that at least one dc-dc converter transfers power to a common dc-bus based upon the total system power available from one or more corresponding strings of PV modules. Due to the coordinated switching of the dc-dc converters, each dc-dc converter transferring power to the common dc-bus continues to operate within its optimal efficiency range as well as to optimize the maximum power point tracking in order to increase the energy yield of the PV power plant.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {9}
}

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Works referenced in this record:

Power converter
patent, March 2008


Interleaved dc-dc Converters for Photovoltaic Modules
conference, May 2007


Experimental study of interleaved MPPT converter for PV systems
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  • Sefa, Ibrahim; Ozdemir, Oaban
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conference, June 2010


Multifunctional interleaved boost converter for PV systems
conference, July 2010


Buck-boost interleaved inverter for grid connected Photovoltaic system
conference, November 2010