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Title: Method and apparatus for in-situ health monitoring of solar cells in space

Abstract

Some embodiments of the present invention describe an apparatus that includes an oscillator, a ramp generator, and an inverter. The apparatus includes an oscillator, an inverter, and a ramp generator. The oscillator is configured to generate a waveform comprising a low time and a high time. The inverter is configured to receive the waveform generated by the oscillator, and invert the waveform. The ramp generator configured to increase a gate control voltage of a transistor connected to a solar cell, and rapidly decrease the gate control voltage of the transistor. During the low time of the waveform, a measurement of a current and a voltage of the solar cell is performed as the current and voltage of the solar cell are transmitted through a first channel and to a second channel. During the high time of the waveform, a measurement of a current of a shorted cell and a voltage reference is performed as the current of the shorted cell and the voltage reference are transmitted through the first channel and the second channel.

Inventors:
;
Issue Date:
Research Org.:
National Aeronautics and Space Administration (NASA), Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1576425
Patent Number(s):
10396709
Application Number:
15/158,199
Assignee:
The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (Washington, DC)
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
Resource Type:
Patent
Resource Relation:
Patent File Date: 2016 May 18
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 42 ENGINEERING

Citation Formats

Krasowski, Michael J., and Prokop, Norman F. Method and apparatus for in-situ health monitoring of solar cells in space. United States: N. p., 2019. Web.
Krasowski, Michael J., & Prokop, Norman F. Method and apparatus for in-situ health monitoring of solar cells in space. United States.
Krasowski, Michael J., and Prokop, Norman F. Tue . "Method and apparatus for in-situ health monitoring of solar cells in space". United States. https://www.osti.gov/servlets/purl/1576425.
@article{osti_1576425,
title = {Method and apparatus for in-situ health monitoring of solar cells in space},
author = {Krasowski, Michael J. and Prokop, Norman F.},
abstractNote = {Some embodiments of the present invention describe an apparatus that includes an oscillator, a ramp generator, and an inverter. The apparatus includes an oscillator, an inverter, and a ramp generator. The oscillator is configured to generate a waveform comprising a low time and a high time. The inverter is configured to receive the waveform generated by the oscillator, and invert the waveform. The ramp generator configured to increase a gate control voltage of a transistor connected to a solar cell, and rapidly decrease the gate control voltage of the transistor. During the low time of the waveform, a measurement of a current and a voltage of the solar cell is performed as the current and voltage of the solar cell are transmitted through a first channel and to a second channel. During the high time of the waveform, a measurement of a current of a shorted cell and a voltage reference is performed as the current of the shorted cell and the voltage reference are transmitted through the first channel and the second channel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {8}
}

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Works referenced in this record:

Methods and apparatus for testing circuit boards
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Measuring apparatus and method for measuring characteristic of solar cell
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System for determining the current-voltage characteristics of a photovoltaic array
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I-V Curve tracer employing parametric sampling
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Inspection method and production method of solar cell module
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