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State-of-charge indication in portable applications [PDF]

open access: yesProceedings of the IEEE International Symposium on Industrial Electronics, 2005. ISIE 2005., 2005
The known methods of state-of-charge (SoC) indication in portable applications are not accurate enough under all practical conditions. The method presented in this paper aims at designing and testing an SoC indication system capable of predicting the remaining capacity of the battery and the remaining run-time with an accuracy of 1 minute or better ...
Pop, V.   +3 more
openaire   +3 more sources

Estimation of Battery State of Health Using the Two-Pulse Method for LiFePO4 Batteries

open access: yesEnergies, 2023
Nowadays, it has been necessary to investigate battery storage systems as a part of the massification of renewable energies, with a particular emphasis on batteries, which are the most crucial components in these systems.
Carolina Zuluaga   +2 more
doaj   +1 more source

State-of-Charge Monitoring and Battery Diagnosis of NiCd Cells Using Impedance Spectroscopy

open access: yesBatteries, 2020
With respect to aeronautical applications, the state-of-charge (SOC) and state-of-health (SOH) of rechargeable nickel−cadmium batteries was investigated with the help of the frequency-dependent reactance Im Z(ω) and the pseudo-capacitance C ...
Peter Kurzweil, Wolfgang Scheuerpflug
doaj   +1 more source

Entanglement charge of thermal states [PDF]

open access: yesScience China Physics, Mechanics and Astronomy, 2012
Entanglement charge is an operational measure to quantify nonlocalities in ensembles consisting of bipartite quantum states. Here we generalize this nonlocality measure to single bipartite quantum states. As an example, we analyze the entanglement charges of some thermal states of two-qubit systems and show how they depend on the temperature and the ...
Lin, X, Bai, Y, Wang, Z, Ye, MY
openaire   +4 more sources

Energy Storage System Modelling For Hybrid Electric Vehicle [PDF]

open access: yesE3S Web of Conferences
The equivalent circuit model (ECM)-based traditional state-of-charge (SoC) estimate approaches combine all state variables into a single enhanced state vector.
Mohammed G.   +4 more
doaj   +1 more source

Energy management strategy of Battery Energy Storage Station (BESS) for power grid frequency regulation considering battery SOX

open access: yesEnergy Reports, 2023
In recent years, the application of BESS in power system has been increasing. If lithium-ion batteries are used, the greater the number of batteries, the greater the energy density, which can increase safety risks.
Xiangjun Li   +5 more
doaj   +1 more source

Voltage-Based State of Charge Correction at Charge-End [PDF]

open access: yes2021 IEEE Vehicle Power and Propulsion Conference (VPPC), 2021
A voltage-based method is proposed to correct battery pack state of charge (SOC) estimation at the charge-end. Two main characteristics make the charge-end time span a good opportunity to correct SOC estimation: first, it is easy to detect when the battery is at the last stage of charging because the charging profile is known to the BMS designer and ...
Abdollahi, Ali   +4 more
openaire   +2 more sources

Optimal least square vector autoregressive moving average for battery state of charge estimation and forecasting

open access: yesICT Express, 2021
The error in state of charge estimation using the combined models is usually attributable to the statistical model. In this study, a least square algorithm is utilized to optimize and increase the state of charge estimation accuracy.
Angela Caliwag, Wansu Lim
doaj   +1 more source

State of Charge Estimation of a Composite Lithium-Based Battery Model Based on an Improved Extended Kalman Filter Algorithm

open access: yesInventions, 2019
The battery State of Charge (SoC) estimation is one of the basic and significant functions for Battery Management System (BMS) in Electric Vehicles (EVs). The SoC is the key to interoperability of various modules and cannot be measured directly.
Ning Ding   +3 more
doaj   +1 more source

A New Frame Work of Real-Time Charaterization Battery Platform

open access: yesAlgerian Journal of Signals and Systems, 2021
Batteries play an important role in the performance enhancement of power grids including renewable energy systems. In order to attain the rated service life and the longest possible run time of a battery, it is necessary to be monitored and maintained ...
Hamid Bentarzi   +3 more
doaj   +1 more source

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