Results 31 to 40 of about 725 (207)

State of Charge (SOC) Estimation of Lithium-ion Battery Based on Adaptive Square Root Unscented Kalman Filter

open access: yesInternational Journal of Electrochemical Science, 2020
The improved battery management system (BMS) can give full play to the best performance of power battery, and the state of charge (SOC) estimation of power lithium-ion battery is the core and key technology of BMS. The Kalman filter method with the first-
Wang Kai   +5 more
doaj   +1 more source

Unified Power Conservative Equivalent Circuit for DC Networks

open access: yesIEEE Access, 2020
This article introduces a new equivalent circuit for linear direct current networks consisting of independent voltage and current sources, and resistors, which represents all the power dissipated internally in the resistors.
Ivo Barbi
doaj   +1 more source

Lithium-Ion Battery SOC Estimation Based on Adaptive Forgetting Factor Least Squares Online Identification and Unscented Kalman Filter

open access: yesMathematics, 2021
In order to improve the estimation accuracy of the battery state of charge (SOC) based on the equivalent circuit model, a lithium-ion battery SOC estimation method based on adaptive forgetting factor least squares and unscented Kalman filtering is ...
Hao Wang, Yanping Zheng, Yang Yu
doaj   +1 more source

Analysis of equivalent circuit models in lithium-ion batteries

open access: yesAIP Advances, 2018
This study investigates lithium-ion (Li-ion) battery discharge at a constant current by comparing equivalent circuit simulation data with experimental data. The simulations employ Thévenin equivalent circuit models consisting of a resistance, capacitance,
Hyun Woo You   +4 more
doaj   +1 more source

A Self-Calibration SOC Estimation Method for Lithium-Ion Battery

open access: yesIEEE Access, 2023
Accurate state of charge (SOC) estimation is essential for the battery management system (BMS). In engineering, inappropriate selection of equivalent circuit model (ECM) and model parameters is common for lithium-ion batteries.
Yueshuai Fu, Huimin Fu
doaj   +1 more source

Equivalent modeling study of aviation lithium-ion batteries

open access: yes, 2023
To be able to accurately describe the dynamic characteristics of the aviation lithium-ion batteries and to accurately estimate its state of charge and state of health, this chapter takes into account the differences between charge and discharge open ...
Guerrero, Josep M.; id_orcid   +5 more
core   +1 more source

The Definition of Power Grid Strength and Its Calculation Methods for Power Systems with High Proportion Nonsynchronous-Machine Sources

open access: yesEnergies, 2023
This paper studies the definition and calculation method of power grid strength in the environment of high-proportion nonsynchronous-machine sources, focusing on the effect of nonsynchronous-machine sources on voltage support strength and frequency ...
Zheng Xu   +3 more
doaj   +1 more source

State of Charge Estimation of Lithium-Ion Batteries Over Wide Temperature Range Using Unscented Kalman Filter

open access: yesIEEE Access, 2018
With the development of electric vehicles in recent years, lithium-ion batteries have been widely used. Accurate state of charge (SOC) estimation plays an important role in the safety of electric vehicles.
Xiaogang Wu, Xuefeng Li, Jiuyu Du
doaj   +1 more source

Thévenin’s Battery Model Parameter Estimation Based on Simulink

open access: yesEnergies, 2022
Lithium-ion batteries (LIB) proved over time to be one of the best choices among rechargeable batteries. Their small size, high energy density, long life, and low maintenance need make them a prominent candidate for the role of the most widespread energy
Giulio Barletta   +2 more
doaj   +1 more source

Real-Time Simulation of Hybrid Modular Multilevel Converters Using Shifted Phasor Models

open access: yesIEEE Access, 2019
The real-time simulation of modular multilevel converter (MMC) is essential to the evaluation and validation of its control and protection systems.
Yingdong Wei   +4 more
doaj   +1 more source

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