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Title: Crosstalk compensation in analysis of energy storage devices

Abstract

Estimating impedance of energy storage devices includes generating input signals at various frequencies with a frequency step factor therebetween. An excitation time record (ETR) is generated to include a summation of the input signals and a deviation matrix of coefficients is generated relative to the excitation time record to determine crosstalk between the input signals. An energy storage device is stimulated with the ETR and simultaneously a response time record (RTR) is captured that is indicative of a response of the energy storage device to the ETR. The deviation matrix is applied to the RTR to determine an in-phase component and a quadrature component of an impedance of the energy storage device at each of the different frequencies with the crosstalk between the input signals substantially removed. This approach enables rapid impedance spectra measurements that can be completed within one period of the lowest frequency or less.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1134680
Patent Number(s):
8762109
Application Number:
13/100,184
Assignee:
Battelle Energy Alliance, LLC (Idaho Falls, ID)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
AC07-051D14517
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 May 03
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Christophersen, Jon P, Morrison, John L, Morrison, William H, Motloch, Chester G, and Rose, David M. Crosstalk compensation in analysis of energy storage devices. United States: N. p., 2014. Web.
Christophersen, Jon P, Morrison, John L, Morrison, William H, Motloch, Chester G, & Rose, David M. Crosstalk compensation in analysis of energy storage devices. United States.
Christophersen, Jon P, Morrison, John L, Morrison, William H, Motloch, Chester G, and Rose, David M. Tue . "Crosstalk compensation in analysis of energy storage devices". United States. https://www.osti.gov/servlets/purl/1134680.
@article{osti_1134680,
title = {Crosstalk compensation in analysis of energy storage devices},
author = {Christophersen, Jon P and Morrison, John L and Morrison, William H and Motloch, Chester G and Rose, David M},
abstractNote = {Estimating impedance of energy storage devices includes generating input signals at various frequencies with a frequency step factor therebetween. An excitation time record (ETR) is generated to include a summation of the input signals and a deviation matrix of coefficients is generated relative to the excitation time record to determine crosstalk between the input signals. An energy storage device is stimulated with the ETR and simultaneously a response time record (RTR) is captured that is indicative of a response of the energy storage device to the ETR. The deviation matrix is applied to the RTR to determine an in-phase component and a quadrature component of an impedance of the energy storage device at each of the different frequencies with the crosstalk between the input signals substantially removed. This approach enables rapid impedance spectra measurements that can be completed within one period of the lowest frequency or less.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}

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