Results 21 to 30 of about 1,446,171 (254)
An Accurate Time Constant Parameter Determination Method for the Varying Condition Equivalent Circuit Model of Lithium Batteries [PDF]
Energies, 2020 An accurate estimation of the state of charge for lithium battery depends on an accurate identification of the battery model parameters. In order to identify the polarization resistance and polarization capacitance in a Thevenin equivalent circuit model ...
Liang Zhang +5 more
doaj +2 more sources
Frontiers in Energy Research, 2020 Smart grids are considered as key solutions to solve current power security issues. Among these suggestions, microgrid is proposed to integrate distributed generations (DGs) such as photovoltaic (PV) system into the network and the control of DGs output ...
Binh Nam Nguyen +5 more
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Energies, 2020 Parameter estimation based on the measurement data of the phasor measurement unit (PMU) is an important approach for identifying the Thévenin equivalent parameters (TEPs) of power systems. However, in the process of acquiring or transmitting data in PMU,
Anan Zhang +3 more
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Optimizing state of charge estimation using thevenin models and extended Kalman filter
Discover ElectronicsPrecise battery modeling plays a critical role in enhancing State of Charge (SoC) estimation and optimizing Battery Management Systems (BMS) for electric vehicles and energy storage systems.
Hamza Benhammou +2 more
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Fault calculations using three terminal Thevenin’s equivalent circuit
International Journal of Electrical Power and Energy Systems, 2011 Abstract The aim of this paper is to present a systematic approach of calculating fault currents due to the switching of elements or fault impedances that involve two buses and ground. Traditionally, Thevenin’s equivalent circuits are made up of two terminals suitable for calculating the current into an element connected between both terminals of the
exaly +2 more sources
Journal of Physics: Conference Series, 2023 As part of the process of voltage regulation, a voltage stability analysis approach suitable for wind power system needs to be established. On equivalent Thevenin parameters, the ordinary equivalent black-box Thevenin method is unable to characterize the
Lichao Yang +3 more
semanticscholar +1 more source
Energies, 2020 With the increased proportion of intermittent renewable energy sources (RES) integrated into the sending-end, the total transfer capability of transmission lines is not sufficient during the peak periods of renewable primary energy (e.g., the wind force),
Yuwei Zhang +4 more
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A Novel Thévenin Equivalent Model Considering the Correlation of Source-Grid-Load in Power Systems
IEEE 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
International 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
IET 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
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