Results 21 to 30 of about 702 (177)
EAI Endorsed Transactions on Energy Web, 2022 Voltage stability assessments, made so far on the Ethiopian electric power system (EEP), are limited both in number and in methodology. Here, in this paper the static voltage stability of the Ethiopian power system is investigated using an index called ...
Ahadu Hilawie, Fekadu Shewarega
doaj +1 more source
Analysis of equivalent circuit models in lithium-ion batteries
AIP 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
IEEE Access, 2023 Electric distribution systems are going through a major upgrade with increasing penetration of distributed energy resources (DERs) and impacting transmission system operational analysis.
Syed Muhammad Hur Rizvi +1 more
doaj +1 more source
Bridge Average Value Model of Modular Multilevel Converter
Zhongguo 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
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
doaj +1 more source
Celal Bayar Üniversitesi Fen Bilimleri Dergisi, 2020 According to the conventional perception among engineers, once a circuit is reduced to its Thevenin or Norton equivalent, the voltage and current may be determined only at the load, but not in the remaining parts. The other voltages and currents that exist in the remaining parts of circuit should be determined by returning to the original circuit ...
IŞIK, Ömer, ERZEN, Lokman, UZER, Ali
openaire +3 more sources
Study on Thévenin Equivalent Circuit Modeling of Zinc-Nickel Single-Flow Battery
International 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
IEEE 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
Unified Power Conservative Equivalent Circuit for DC Networks
IEEE 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
Substrate Engineering of SWCNT p–n Junctions for Dual‐Mode Power Generation and Heat‐Flux Sensing
Advanced Science, EarlyView.Through substrate engineering alone, a single‐walled carbon nanotube p–n junction device switches between two functions under uniform infrared irradiation. A low‐absorbance substrate sustains a central hot junction for continuous power generation, whereas high‐absorbance substrates transiently invert the temperature gradient for sensitive heat‐flux ...
Ryota Tamai +3 more
wiley +1 more source