Results 21 to 30 of about 24,535,003 (193)

A novel method for online voltage stability assessment based on PMU measurements and Thevenin equivalent

open access: yesIET Generation, Transmission & Distribution, 2022
From the power systems security point of view, determining the voltage stability margin is essential for the operation of systems. An inaccurate determination of the maximum loading factor or voltage collapse point in a power system may cause voltage ...
Rohallah Pourbagher   +2 more
doaj   +1 more source

Bridge Average Value Model of Modular Multilevel Converter

open access: yesZhongguo dianli, 2019
The speed-up simulation model of modular multilevel converter (MMC) is the basis for the research of voltage-source converter high-voltage direct-current (VSC-HVDC) system. Among many models, the bridge Thevenin model of MMC is the most widely used.
Ning CHEN, Lei QI, Meng BAO, Xiang CUI
doaj   +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

Simplification of water distribution networks using non-linear Thevenin theorem and its application for maximum power transfer

open access: yesJournal of Hydroinformatics, 2022
The boundaries of existing cities are expanding rapidly due to the exponential growth in urban population. Therefore, the existing water distribution networks (WDNs) need to be expanded up to the newly developed areas to meet the additional water demand.
Raman Balireddy   +3 more
doaj   +1 more source

Study on Thévenin Equivalent Circuit Modeling of Zinc-Nickel Single-Flow Battery

open access: yesInternational Journal of Electrochemical Science, 2018
Based on the working principle of a zinc–nickel single-flow battery (ZNB), an improved Thévenin equivalent circuit model is proposed in this paper. According to the experimental data of a 100-A pulsed discharge of a ZNB, the parameters of the modified ...
Shouguang Yao   +4 more
doaj   +1 more source

Circuit Parameter Range of Photovoltaic System to Correctly Use the MPP Linear Model of Photovoltaic Cell

open access: yesEnergies, 2021
The real-time linearization of a photovoltaic (PV) cell has been implemented well by the proposition of two maximum power point (MPP) linear models (MPP Thevenin cell model and MPP Norton cell model).
Shaowu Li
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
semanticscholar   +1 more source

A Novel Thévenin Equivalent Model Considering the Correlation of Source-Grid-Load in Power Systems

open access: yesIEEE Access, 2021
The coupled single-port circuit has been proposed for online voltage stability assessment based on wide-area measurements and grid equations. This circuit can explicitly reflect the influence of grid and load on voltage stability.
Pingfeng Ye   +5 more
semanticscholar   +1 more source

Improved Thevenin Equivalent Model of MMC Considering Pre-charge Conditions and DC Side Fault Conditions

open access: yesApplied Computational Electromagnetics Society, 2021
The traditional Thevenin equivalent Modular Multilevel Converter (MMC) model has poor versatility for the two working conditions of pre-charging and DC-side faults.
Jin Enshu   +3 more
semanticscholar   +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

Home - About - Disclaimer - Privacy