Results 21 to 30 of about 1,495,902 (211)

Estimation of the Equivalent Circuit Parameters of Induction Motors by Laboratory Test

open access: yesMachines, 2021
The determination of equivalent circuit parameters for AC induction motors represents an important task in an electrical machine laboratory. Frequently used open-circuit and short current tests answer these requirements.
Moshe Averbukh, Efim Lockshin
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

Power Conservative Equivalent Circuit for DC Networks

open access: yesIEEE Access, 2020
This paper introduces a new equivalent circuit for linear direct current networks containing independent voltage sources and resistors, which represents all internal losses and can be used for the power and efficiency analysis of the actual circuit.
Ivo Barbi
doaj   +1 more source

A Parameter Extraction Method for the Thevenin Equivalent Circuit Model of Li-ion Batteries

open access: yesAnnual Meeting of the IEEE Industry Applications Society, 2019
This paper presents a novel parameter extraction method for the Thevenin equivalent circuit model of Lithium-ion batteries. The proposed approach represents each of the RC parallel branches of the Thevenin equivalent circuit model of a Lithium-ion ...
Monowar Hossain   +4 more
semanticscholar   +1 more source

Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods

open access: yesThe Journal of Engineering, 2019
This paper presents a detailed comparison of different modelling methods of the half-bridge modular multilevel converter (HB-MMC), namely, switching function, Thevenin equivalent, and averaged, considering both MMC implementations (large and reduced ...
Deyang Guo   +6 more
doaj   +1 more source

Online Identification of Thevenin Equivalent Circuit Model Parameters and Estimation State of Charge of Lithium-Ion Batteries

open access: yes2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2018
On Electrical and Hybrid Vehicles (EVs, HEVs), energy is stored in accumulators, mainly electro-chemical batteries. A reliable and cost effective management of energy storage system is a key point for the development of such devices, their durability and
E. Locorotondo   +4 more
semanticscholar   +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

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

Finite–time identification of the Thévenin equivalent parameters in power grids

open access: yes, 2020
International audienceThis paper presents a novel algorithm for online identification of the Thévenin equivalent parameters in ac three–phase power grids of inductive nature.
Mancilla–david, Fernando   +4 more
core   +1 more source

Quantification of the Atmospheric Corrosion of 304 and 2205 Stainless Steels Using Electrochemical Probes Based on Thevenin Electrochemical Equivalent Circuit Model

open access: yesTransactions of Tianjin University, 2020
Stainless steel (SS) is one of the most widely used engineering materials in marine engineering. However, its corrosion in the marine atmospheric environment due to the high concentration of Cl − is a problem.
Yu Zhu   +6 more
semanticscholar   +2 more sources

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