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Title: Automatic generation and analysis of solar cell IV curves

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.
Authors:
;
Publication Date:
OSTI Identifier:
1134057
Report Number(s):
8,744,791
13/053,770
DOE Contract Number:
FC36-07G017043
Resource Type:
Patent
Research Org:
SunPower Corporation, San Jose, CA (USA)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY