Results 11 to 20 of about 471 (171)
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
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Practical calculation of asymmetric short circuit current of DFIG connected to distribution network [PDF]
E3S Web of Conferences, 2020 In view of the existing complex analytic calculations of DFIG short-circuit current are hardly applied in engineering projects, a practical calculation of asymmetric short-circuit current of DFIG is proposed.
Fu Pengwu +4 more
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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
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Estimation of the Equivalent Circuit Parameters of Induction Motors by Laboratory Test
Machines, 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
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Mathematics, 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
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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
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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
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Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods
The 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
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A Self-Calibration SOC Estimation Method for Lithium-Ion Battery
IEEE 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
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Energies, 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
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