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Title: Automatic generation and analysis of solar cell IV curves

Patent ·
OSTI ID:1134057
;

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.

Research Organization:
SunPower Corporation, San Jose, CA (USA)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC36-07G017043
Assignee:
SunPower Corporation (San Jose, CA)
Patent Number(s):
8,744,791
Application Number:
13/053,770
OSTI ID:
1134057
Country of Publication:
United States
Language:
English

References (13)

Systems for highly efficient solar power conversion patent October 2009
Systems for boundary controlled solar power conversion patent May 2010
System and method for solar panel array analysis patent October 2012
Distributed Power Harvesting Systems Using DC Power Sources patent-application June 2008
Monitoring of Distributed Power Harvesting Systems Using DC Power Sources patent-application June 2008
Detection and Prevention of Hot Spots in a Solar Panel patent-application August 2012
Automatic Generation And Analysis Of Solar Cell IV Curves patent-application September 2012
System and Method for Local String Management Unit patent-application October 2012
Enhanced Systems and Methods for Using a Power Converter for Balancing Modules in Single-String and Multi-String Configurations patent-application October 2012
Idealized Solar Panel patent-application October 2012
System and Method for Local String Management Unit patent-application January 2013
Measured Performance of Building Integrated Photovoltaic Panels—Round 2 journal October 2004
Measured Performance of Building Integrated Photovoltaic Panels* journal March 2001

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Related Subjects

14 SOLAR ENERGY