Method and apparatus for in-situ characterization of energy storage and energy conversion devices
Abstract
Disclosed are methods and apparatuses for determining an impedance of an energy-output device using a random noise stimulus applied to the energy-output device. A random noise signal is generated and converted to a random noise stimulus as a current source correlated to the random noise signal. A bias-reduced response of the energy-output device to the random noise stimulus is generated by comparing a voltage at the energy-output device terminal to an average voltage signal. The random noise stimulus and bias-reduced response may be periodically sampled to generate a time-varying current stimulus and a time-varying voltage response, which may be correlated to generate an autocorrelated stimulus, an autocorrelated response, and a cross-correlated response. Finally, the autocorrelated stimulus, the autocorrelated response, and the cross-correlated response may be combined to determine at least one of impedance amplitude, impedance phase, and complex impedance.
- Inventors:
-
- Idaho Falls, ID
- Butte, MT
- Layton, UT
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1014497
- Patent Number(s):
- 7675293
- Application Number:
- U S Patent Application 11/381,689
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
- DOE Contract Number:
- AC07-05ID14517
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Christophersen, Jon P, Motloch, Chester G, Morrison, John L, and Albrecht, Weston. Method and apparatus for in-situ characterization of energy storage and energy conversion devices. United States: N. p., 2010.
Web.
Christophersen, Jon P, Motloch, Chester G, Morrison, John L, & Albrecht, Weston. Method and apparatus for in-situ characterization of energy storage and energy conversion devices. United States.
Christophersen, Jon P, Motloch, Chester G, Morrison, John L, and Albrecht, Weston. Tue .
"Method and apparatus for in-situ characterization of energy storage and energy conversion devices". United States. https://www.osti.gov/servlets/purl/1014497.
@article{osti_1014497,
title = {Method and apparatus for in-situ characterization of energy storage and energy conversion devices},
author = {Christophersen, Jon P and Motloch, Chester G and Morrison, John L and Albrecht, Weston},
abstractNote = {Disclosed are methods and apparatuses for determining an impedance of an energy-output device using a random noise stimulus applied to the energy-output device. A random noise signal is generated and converted to a random noise stimulus as a current source correlated to the random noise signal. A bias-reduced response of the energy-output device to the random noise stimulus is generated by comparing a voltage at the energy-output device terminal to an average voltage signal. The random noise stimulus and bias-reduced response may be periodically sampled to generate a time-varying current stimulus and a time-varying voltage response, which may be correlated to generate an autocorrelated stimulus, an autocorrelated response, and a cross-correlated response. Finally, the autocorrelated stimulus, the autocorrelated response, and the cross-correlated response may be combined to determine at least one of impedance amplitude, impedance phase, and complex impedance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {3}
}
Works referenced in this record:
Determination of the state-of-health of VRLA batteries by means of noise measurements
conference, January 2001
- Baert, D. H. J.
- Twenty-Third International Telecommunications Energy Conference. INTELEC 2001