Title: Battery models, systems, and methods using robust fail-safe iteration free approach for solving differential algebraic equations

Abstract

Battery models using robust fail-safe iteration free approach for solving Differential Algebraic Equations, and associated systems and methods are disclosed. In one embodiment, a method includes generating a model of the rechargeable battery; determining one or more initial conditions for one or more algebraic variables of the model using a solver; holding differential variables of the model static by a switch function while determining the one or more initial conditions; applying the initial conditions to the model by the switch function; and determining one or more parameters for the rechargeable battery by solving the algebraic and differential equations.

Inventors:

Sonawane, Dayaram; Pathak, Manan; Subramanian, Venkat; Lawder, Matthew

Issue Date:

2020-09-08

Research Org.:

Univ. of Washington, Seattle, WA (United States); Washington Univ., St. Louis, MO (United States)

Sponsoring Org.:

USDOE Advanced Research Projects Agency - Energy (ARPA-E)

OSTI Identifier:

1735240

Patent Number(s):

10769236

Application Number:

15/745,984

Assignee:

University of Washington (Seattle, WA); Washington University (St. Louis, MO)

Patent Classifications (CPCs):

G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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G - PHYSICS G06 - COMPUTING G06F - ELECTRIC DIGITAL DATA PROCESSING

G06F17/13 - Differential equations
G06F2111/10 - Numerical modelling
G06F30/20 - Design optimisation, verification or simulation

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M10/44 - Methods for charging or discharging
H01M10/441 - {for several batteries or cells simultaneously or sequentially}
H01M2220/20 - Batteries in motive systems, e.g. vehicle, ship, plane

H - ELECTRICITY H02 - GENERATION H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER

H02J7/0047 - {with monitoring or indicating devices or circuits}
H02J7/0048 - {Detection of remaining charge capacity or state of charge [SOC]}
H02J7/0049 - {Detection of fully charged condition}

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

Y02E60/10 - Energy storage

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DOE Contract Number:  

AR0000275

Resource Type:

Patent

Resource Relation:

Patent File Date: 07/20/2016

Country of Publication:

United States

Language:

English

Subject:

25 ENERGY STORAGE