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Title: Automatic generation and analysis of solar cell IV curves

Abstract

A photovoltaic system includes multiple strings of solar panels and a device presenting a DC load to the strings of solar panels. Output currents of the strings of solar panels may be sensed and provided to a computer that generates current-voltage (IV) curves of the strings of solar panels. Output voltages of the string of solar panels may be sensed at the string or at the device presenting the DC load. The DC load may be varied. Output currents of the strings of solar panels responsive to the variation of the DC load are sensed to generate IV curves of the strings of solar panels. IV curves may be compared and analyzed to evaluate performance of and detect problems with a string of solar panels.

Inventors:
;
Issue Date:
Research Org.:
SunPower Corporation, San Jose, CA (USA)
Sponsoring Org.:
USDOE
OSTI Identifier:
1134057
Patent Number(s):
8744791
Application Number:
13/053,770
Assignee:
SunPower Corporation (San Jose, CA)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
DOE Contract Number:  
FC36-07G017043
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Kraft, Steven M., and Jones, Jason C.. Automatic generation and analysis of solar cell IV curves. United States: N. p., 2014. Web.
Kraft, Steven M., & Jones, Jason C.. Automatic generation and analysis of solar cell IV curves. United States.
Kraft, Steven M., and Jones, Jason C.. Tue . "Automatic generation and analysis of solar cell IV curves". United States. https://www.osti.gov/servlets/purl/1134057.
@article{osti_1134057,
title = {Automatic generation and analysis of solar cell IV curves},
author = {Kraft, Steven M. and Jones, Jason C.},
abstractNote = {A photovoltaic system includes multiple strings of solar panels and a device presenting a DC load to the strings of solar panels. Output currents of the strings of solar panels may be sensed and provided to a computer that generates current-voltage (IV) curves of the strings of solar panels. Output voltages of the string of solar panels may be sensed at the string or at the device presenting the DC load. The DC load may be varied. Output currents of the strings of solar panels responsive to the variation of the DC load are sensed to generate IV curves of the strings of solar panels. IV curves may be compared and analyzed to evaluate performance of and detect problems with a string of solar panels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}

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Works referenced in this record:

Measured Performance of Building Integrated Photovoltaic Panels—Round 2
journal, October 2004


Measured Performance of Building Integrated Photovoltaic Panels*
journal, March 2001