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Title: Real-time series resistance monitoring in photovoltaic systems

Abstract

A device includes at least one processor configured to determine a target irradiance value based on an operating current value of a photovoltaic (PV) device, a short-circuit current value of the PV device, and an operating irradiance value of the PV device. The at least one processor is also configured to determine an open-circuit voltage value of the PV device at the target irradiance value, determine a series resistance value of the PV device based on an operating voltage value of the PV device, the operating current value, and the open-circuit voltage value at the target irradiance value, and execute at least one programmatic action based on the series resistance value.

Inventors:
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1650781
Patent Number(s):
10622941
Application Number:
15/564,357
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
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
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/08/2016
Country of Publication:
United States
Language:
English

Citation Formats

Deceglie, Michael Gardner. Real-time series resistance monitoring in photovoltaic systems. United States: N. p., 2020. Web.
Deceglie, Michael Gardner. Real-time series resistance monitoring in photovoltaic systems. United States.
Deceglie, Michael Gardner. Tue . "Real-time series resistance monitoring in photovoltaic systems". United States. https://www.osti.gov/servlets/purl/1650781.
@article{osti_1650781,
title = {Real-time series resistance monitoring in photovoltaic systems},
author = {Deceglie, Michael Gardner},
abstractNote = {A device includes at least one processor configured to determine a target irradiance value based on an operating current value of a photovoltaic (PV) device, a short-circuit current value of the PV device, and an operating irradiance value of the PV device. The at least one processor is also configured to determine an open-circuit voltage value of the PV device at the target irradiance value, determine a series resistance value of the PV device based on an operating voltage value of the PV device, the operating current value, and the open-circuit voltage value at the target irradiance value, and execute at least one programmatic action based on the series resistance value.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}

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Works referenced in this record:

Method for forming optimal characteristic curves of solar cell and system thereof
patent, July 2012


Methods and systems for operating a power converter
patent, February 2015