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Analytic Bound on Accuracy of Battery State and Parameter Estimation
2015
Journal of the Electrochemical Society
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OCV slope and SOC variation, and that of resistance estimation depends heavily on the current magnitude. ...
In this paper, the analytic bounds on the accuracy of battery state and parameter estimation accounting for voltage measurement noises are derived based on the Fisher information matrix and Cramer-Rao ...
In this paper, the analytic bounds on estimation accuracy of SOC, capacity and resistance will be derived under various circumstances. ...
doi:10.1149/2.0791509jes
fatcat:bpovqnsc3feodmzzuxkuqaf5du
Peukert's Law-Based State-of-Charge Estimation for Primary Battery Powered Sensor Nodes
2023
Sensors
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This paper proposes a lightweight SOC estimation method, which applies Peukert's Law to estimate the effective capacity of the battery and then calculates the SOC by subtracting the cumulative current ...
the rate-capacity effect of the batteries. ...
Conflicts of Interest: The authors declare no conflict of interest. Sensors 2023, 23, 1036 ...
doi:10.3390/s23021036
pmid:36679832
pmcid:PMC9863025
fatcat:lgi7qcze5fey7n3qhm4tyontue
State of Charge Estimation for Lithium-Ion Battery with a Temperature-Compensated Model
2017
Energies
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Accurate estimation of the state of charge (SOC) of batteries is crucial in a battery management system. Many studies on battery SOC estimation have been investigated recently. ...
The open circuit voltage (OCV), capacity, and resistance and capacitance (RC) parameters in the estimator are temperature dependent so that the estimator can maintain high accuracy at various temperatures ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/en10101560
fatcat:kcfolei5crbkrlqrjk6oh5ru44
Robustness analysis of State-of-Charge estimation methods for two types of Li-ion batteries
2012
Journal of Power Sources
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h i g h l i g h t s < Analytic functions describing the battery model parameters are optimized. < EKF based on the optimal analytic model is adopted as the SOC estimator. < The robustness of the SOC estimator ...
. a b s t r a c t Battery State of Charge (SOC) estimation is an important function for battery management systems and critical for the reliable operations of batteries. ...
Acknowledgment This work was supported by the Automotive Research Center (ARC), a U.S. Army center of excellence in modeling and simulation of ground vehicles. ...
doi:10.1016/j.jpowsour.2012.06.005
fatcat:rxtwty2mrfbi5ktquo5az6erku
Comparative Study Between Internal Ohmic Resistance and Capacity for Battery State of Health Estimation
2015
Journal of Mechatronics, Electrical Power, and Vehicular Technology
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This research analyzes methods to estimate SOH based lithium polymer battery on change of its internal resistance and its capacity. ...
After comparing the two methods, the obtained results show that SOH estimation based on coloumb counting provides better accuracy than SOH estimation based on internal ohmic resistance. ...
ACKNOWLEDGEMENT This research program is fully supported by Universitas Gadjah Mada Faculty of Engineering. ...
doi:10.14203/j.mev.2015.v6.113-122
fatcat:rgajfgtsnjbajmf4ahtll2svi4
Lithium Ion Battery Models and Parameter Identification Techniques
2017
Energies
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Electric Models Peukert's law [8] is one of the simplest analytical functions used to predict the capacity of a battery: where C is the battery capacity in Ah, I is the discharge current in A, b is the ...
Moreover, surveys on their electric, thermal, and aging modeling are also reported. This paper presents a more complete overview of the different proposed battery models and estimation techniques. ...
[28] developed a calendar aging model in which the behavior of both the capacity and the resistance of the battery are functions of the square root of the time. ...
doi:10.3390/en10122007
fatcat:rdkdwnapdncsveybeqheevehye
Dual Nonlinear Kalman Filter-Based SoC and Remaining Capacity Estimation for an Electric Scooter Li-NMC Battery Pack
2020
Energies
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Next, dual extended Kalman filter-based (DEKF) estimator of battery SoC, internal resistances, and parameters of open-circuit voltage (OCV) vs. ...
Accurate, real-time estimation of battery state-of-charge (SoC) and state-of-health represents a crucial task of modern battery management systems. ...
On the other hand, the internal resistance and capacity estimates are the main indicators used for tracking the battery degradation level, i.e., estimation of battery state-of-health (SoH) [2] . ...
doi:10.3390/en13030540
fatcat:ibqqzubivbfyri46y2mq66cbm4
A Review of Lithium-Ion Battery for Electric Vehicle Applications and Beyond
2019
Energy Procedia
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A new method of sorting retired lithium-ion batteries and estimating the RUL and SOC of the retired lithium-ion batteries is proposed. ...
A new method of sorting retired lithium-ion batteries and estimating the RUL and SOC of the retired lithium-ion batteries is proposed. ...
In addition, a reliable estimation of the rest of the driving range of EV depends on the accuracy of the SOC data, This section introduces some strategies of SOC estimation. ...
doi:10.1016/j.egypro.2019.01.783
fatcat:hh5z3utopvei7d6jictli3rfza
Online Estimation of Open Circuit Voltage Based on Extended Kalman Filter with Self-Evaluation Criterion
2022
Energies
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Our method also greatly improves the accuracy of SoC estimation at each SoC point where the maximum estimation error of SoC is less than 0.3%. ...
To this end, this paper proposes a novel self-evaluation criterion based on the capacity difference of State of Charge (SoC) unit interval. ...
We are thankful to the testing and simulation team members for their support with the experiment.
Conflicts of Interest: The authors declare no conflict of interest. Energies 2022, 15, 4373 ...
doi:10.3390/en15124373
fatcat:5p4twjy62raktduvy7mx5tjofy
Electrical battery modeling for applications in wireless sensor networks and internet of things
2021
Bulletin of Electrical Engineering and Informatics
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This paper presents the one resistive-capacitance (1RC) battery model with simple parameterization technique for nickel metal hydride (NiMH). ...
The results of the voltage response obtained from both the model and experiments showed excellent accuracy, with difference of less than 2%. ...
ACKNOWLEDGEMENTS The authors gratefully acknowledge the support for this research from the Malaysian Ministry of Higher Education (MOHE) under the fundamental research grant scheme FRGS/2/2014/TK03/UTP ...
doi:10.11591/eei.v10i4.3106
fatcat:yihzlz4e6jebxdnqc4uminxnkm
DYNAMIC MODELING OF LITHIUM-ION BATTERY WITH TEMPERATURE EFFECT
2017
European Journal of Technic
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However temperature effect and dynamic characteristic of the li-ion batteries greatly affects their performance. ...
Simulation results show that proposed dynamic model is effective and operational under the different temperature rates for dynamic output characteristic of li-ion battery. ...
Acknowledgment The authors would like to thank for the financial support by scientific research project unit of Mersin University (Project number: BAP-2015-TP2-1196). ...
doi:10.23884/ejt.2017.7.1.01
fatcat:rye6cl4oizedvpjojd7takc3l4
An Enhanced Lithium-ion Battery Model for Estimating the State of Charge and Degraded Capacity using an Optimized Extended Kalman Filter
2020
IEEE Access
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The model considers the most influencing factors on the estimation accuracy, such as temperature, aging, and self-discharge. ...
The precise estimation of the state of charge (SOC) in lithium-ion batteries is essential to assure their safe use, increase the battery lifespan, and achieve better management. ...
battery under different operating conditions, and the accuracy of capacity estimation. ...
doi:10.1109/access.2020.3038477
fatcat:ob7xaecd2rdh7ja3yifuw3ony4
Prognostics and health monitoring for lithium-ion battery
2011
Proceedings of 2011 IEEE International Conference on Intelligence and Security Informatics
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The specific method is presented to realize the estimation on remaining useful life (RUL) of batteries. ...
Hence, the latest known methods of state estimation and life prediction based on battery health monitoring are discussed in this paper. ...
If the degradation process is assumed as a memoryless process, the resistance model will be accurate to estimate SOC and SOH of a battery. ...
doi:10.1109/isi.2011.5984090
dblp:conf/isi/XingMTP11
fatcat:hikhx5jv7jag5e6n4pg3szwwzy
Analysis of the Current Electric Battery Models for Electric Vehicle Simulation
2019
Energies
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An appropriate model of these batteries is fundamental for the simulation of several processes inside an EV, such as the state of charge (SoC) estimation, capacity and power fade analysis, lifetime calculus ...
In this sense, this paper serves as a reference for the scientific community focused on the development of control and optimization strategies in the field of electric vehicles, since it facilitates the ...
On one hand, the accuracy of this model relies on the accuracy of the relation specified in each voltage source. ...
doi:10.3390/en12142750
fatcat:2mwyv7zyxrdfrj6zizmysbe6c4
A Novel Method for Estimating State-of-Charge of Lithium-ion Battery Pack Based on General Open Circuit Voltage
2019
DEStech Transactions on Environment Energy and Earth Science
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The relationship between open-circuit-voltage (OCV) and the state of charge (SOC) has shown a considerable influence on the accuracy of SOC estimation. ...
In this study, in order to deal with the uncertainty and inconsistency of the OCV curve in the battery pack, a novel method for SOC estimation based on the general OCV is proposed. ...
The studies in Ref. [5] and [6] show that the OCV-SOC curve has a considerable influence on the accuracy of SOC estimation. ...
doi:10.12783/dteees/iceee2019/31817
fatcat:6d5ijhtlc5bgpcjha6k4pji2jy
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