NREL's Improved Linearity Testing of Photovoltaic Reference Cells

Tom Moriarty; Tao Song; Carl Osterwald

doi:10.1109/PVSC40753.2019.9198954

NREL's Improved Linearity Testing of Photovoltaic Reference Cells

Tom Moriarty, Tao Song, Carl Osterwald

Chemistry and Nanoscience

National Renewable Energy Laboratory

Research output: Contribution to conference › Paper › peer-review

Abstract

Photovoltaic devices are characterized under standard testing conditions that include a defined reference spectrum and total irradiance. International standards for reference cell calibrations require that reported reference cell response (typically Isc) vs. total irradiance must be linear. How can linearity be efficiently determined? In 2006 NREL developed a test bed, based on the "two-lamp method"that provided a low cost, but low accuracy method for determining whether cell responsewas linear with irradiance. This paper describes very simple changes to NREL's historical method [1] for determining linearity that yield greatly improved results. It also describes a method that can be used to quantify and correct for non-linearity.

Original language	American English
Pages	3417-3422
Number of pages	6
DOIs	https://doi.org/10.1109/PVSC40753.2019.9198954 https://doi.org/10.1109/PVSC40753.2019.9198954
State	Published - Jun 2019
Event	46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States Duration: 16 Jun 2019 → 21 Jun 2019

Conference

Conference	46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/Territory	United States
City	Chicago
Period	16/06/19 → 21/06/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

NREL Publication Number

NREL/CP-5900-73486

Keywords

characterization
linearity
measurement
metrology
photovoltaic (PV) cells
Reference cell
shortcircuit current
solar cells

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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abstract = "Photovoltaic devices are characterized under standard testing conditions that include a defined reference spectrum and total irradiance. International standards for reference cell calibrations require that reported reference cell response (typically Isc) vs. total irradiance must be linear. How can linearity be efficiently determined? In 2006 NREL developed a test bed, based on the {"}two-lamp method{"}that provided a low cost, but low accuracy method for determining whether cell responsewas linear with irradiance. This paper describes very simple changes to NREL's historical method [1] for determining linearity that yield greatly improved results. It also describes a method that can be used to quantify and correct for non-linearity.",

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AU - Osterwald, Carl

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KW - characterization

KW - linearity

KW - measurement

KW - metrology

KW - photovoltaic (PV) cells

KW - Reference cell

KW - shortcircuit current

KW - solar cells

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T2 - 46th IEEE Photovoltaic Specialists Conference, PVSC 2019

Y2 - 16 June 2019 through 21 June 2019

ER -

NREL's Improved Linearity Testing of Photovoltaic Reference Cells

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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