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Journal articles on the topic 'Equivalent circuit parameter'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Aminu, M., M. Abana, S. W. Pallam, and P. K. Ainah. "Nonintrusive Method for Induction Motor Equivalent Circuit Parameter Estimation using Chicken Swarm Optimization (CSO) Algorithm." Nigerian Journal of Technological Development 18, no. 1 (2021): 21–29. http://dx.doi.org/10.4314/njtd.v18i1.4.

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This paper presents a nonintrusive method for estimating the parameters of an Induction Motor (IM) without the need for the conventional no-load and locked rotor tests. The method is based on a relatively new swarm-based algorithm called the Chicken Swarm Optimization (CSO). Two different equivalent circuits implementations have been considered for the parameter estimation scheme (one with parallel and the other with series magnetization circuit). The proposed parameter estimation method was validated experimentally on a standard 7.5 kW induction motor and the results were compared to those ob

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2

Akimoto, Benjamin, and Wataru Natsu. "Study on Parameter Determination for ECM Equivalent Circuit." Applied Mechanics and Materials 220-223 (November 2012): 1990–94. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.1990.

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The analysis of the ECM model expressed by an equivalent circuit is helpful to understand the ECM characteristics, such as the removal rate and machining accuracy. However, the parameters in the ECM equivalent circuit have not been determined yet, although several kinds of equivalent circuits were proposed. In this research, the parameters of the ECM equivalent circuit were determined experimentally, and the determination reliability was discussed.

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Zucca, Mauro, Melika Hassanzadeh, Davide Signorino, and Umberto Pogliano. "Uncertainty Evaluation of a Supercapacitor Equivalent Circuit Parameters." IEEE Transactions on Instrumentation and Measurement 74 (February 21, 2025): 1502509. https://doi.org/10.1109/TIM.2025.3544362.

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The accurate simulation of the behavior of a supercapacitor (SC) and its control in an electronic system cannot be achieved by a simple one-branch circuit. A correct simulation requires the use of more complex equivalent circuits, with at least two or three branches. These equivalent circuits guarantee a good reproduction of the device’s behavior. The effectiveness of an equivalent circuit is linked to the limits of the circuit parameter identification, which is commonly achieved by means of the voltage and current measurement of charge and self-discharge cycles. The uncertainty in the i

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4

García-Sánchez, Francisco, Beatriz Romero, Denise Lugo-Muñoz, et al. "Modelling solar cell S-shaped I-V characteristics with DC lumped-parameter equivalent circuits a review." Facta universitatis - series: Electronics and Energetics 30, no. 3 (2017): 327–50. http://dx.doi.org/10.2298/fuee1703327g.

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This article reviews and appraises the dc lumped-parameter equivalent circuit models that have been proposed so far for representing some types of solar cells that can exhibit under certain circumstances a detrimental S-shaped concave deformation within the energy-producing fourth quadrant of their illuminated I-V characteristics. We first present a very succinct recollection of lumped-parameter equivalent circuits that are commonly used to model conventional solar cells in general. We then chronologically present and discuss lumped-parameter equivalent sub-circuits that, combined with convent

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Artemenko, M. Yu, D. O. Petrov, and Yu V. Kutafin. "One-Port Power Conservative Equivalent Circuit of DC Network with Dependent Voltage Sources." Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 85 (June 30, 2021): 5–13. https://doi.org/10.20535/radap.2021.85.5-13.

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Known for more than a century the principle of the equivalent source, formulated in the form of Thevenen and Norton theorems, has recently been improved by introducing the requirement of energy equivalence of the primary network and its two-pole substitution circuit. Peculiarities and shortcomings of the existing two-pole substitution circuits that equivalent to the primary DC network are analyzed, and the purpose of the work is formulated: implementation of the new energy content of the equivalent source principle for the DC network’s class, containing both independent and dependent voltage s

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6

Policastro, Steven A., Rachel M. Anderson, Carlos M. Hangarter, Attilio Arcari, and Erick B. Iezzi. "Incorporating Physics-Based Models into Equivalent Circuit Analysis of EIS Data from Organic Coatings." Coatings 13, no. 7 (2023): 1285. http://dx.doi.org/10.3390/coatings13071285.

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Electrochemical impedance spectroscopy (EIS) is a widely used method for monitoring coatings because it can be done in situ and causes little damage to the coating. However, interpreting the impedance data from coatings in order to determine the state of the coating and its protective abilities is challenging. A modified version of the rapid electrochemical assessment of paint (REAP) equivalent circuit is developed here, along with a method to calculate the impedance of a circuit using matrix algebra. This new equivalent circuit and the calculation method are used to analyze EIS data obtained

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Ma, Tengfei, Yunshui Zheng, Jing Xu, and Jianfa Wang. "Uninsulated Track Circuit Parameter Adjustment and Ballast Resistance Analysis." Journal of Physics: Conference Series 2561, no. 1 (2023): 012019. http://dx.doi.org/10.1088/1742-6596/2561/1/012019.

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Abstract Uninsulated track circuits are increasingly used in railroad signaling equipment, but the external environment dramatically influences operating conditions. Using the relationship between uninsulated track circuits and ballast resistance, an equivalent four-terminal network model of track circuit transmission characteristics is constructed based on uniform transmission line theory to analyze the influence law of ballast resistance on track surface current. It also makes corresponding adjustments to the track circuit parameters to ensure that the track circuit can work reliably in all

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8

Wang, Xing Wu, Zhao Yan Zhang, and Yong Jun Lin. "Research on Identification of Induction Motor Parameters Based on Nameplate Data." Applied Mechanics and Materials 721 (December 2014): 517–22. http://dx.doi.org/10.4028/www.scientific.net/amm.721.517.

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A new method for identification of motor equivalent circuit parameters is proposed based on motor nameplate and particle swarm optimization (PSO). That is effective solution to the present problems of motor equivalent circuit parameters identification method. An accurate motor equivalent circuit is built by introducing an equivalent stray-loss resistance, mechanical loss, and slip loss of ring brushes contact for wound motor. The identification accuracy of motor equivalent circuit parameters is improved. An identification optimization model of equivalent circuit is established based on motor n

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9

Wang, Jianlin, Le Zhang, Dan Xu, Peng Zhang, and Gairu Zhang. "A Simplified Fractional Order Equivalent Circuit Model and Adaptive Online Parameter Identification Method for Lithium-Ion Batteries." Mathematical Problems in Engineering 2019 (April 3, 2019): 1–8. http://dx.doi.org/10.1155/2019/6019236.

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In order to improve the battery management system performance and enhance the adaptability of the system, a fractional order equivalent circuit model of lithium-ion battery based on electrochemical test was established. The parameters of the fractional order equivalent circuit model are identified by the least squares parameter identification method. The least squares parameter identification method needs to rely on the harsh test conditions of the laboratory, and the parameter identification result is static; it cannot adapt to the characteristics of the lithium battery under dynamic conditio

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10

Ascencion-Mestiza, Hector, Serguei Maximov, Efrén Mezura-Montes, Juan Carlos Olivares-Galvan, Rodrigo Ocon-Valdez, and Rafael Escarela-Perez. "Estimation of the Equivalent Circuit Parameters in Transformers Using Evolutionary Algorithms." Mathematical and Computational Applications 28, no. 2 (2023): 36. http://dx.doi.org/10.3390/mca28020036.

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The conventional methods of parameter estimation in transformers, such as the open-circuit and short-circuit tests, are not always available, especially when the transformer is already in operation and its disconnection is impossible. Therefore, alternative (non-interruptive) methods of parameter estimation have become of great importance. In this work, no-interruption, transformer equivalent circuit parameter estimation is presented using the following metaheuristic optimization methods: the genetic algorithm (GA), particle swarm optimization (PSO) and the gravitational search algorithm (GSA)

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11

Araújo, N. M. F. T. S., F. J. P. Sousa, and F. B. Costa. "EQUIVALENT MODELS FOR PHOTOVOLTAIC CELL – A REVIEW." Revista de Engenharia Térmica 19, no. 2 (2020): 77. http://dx.doi.org/10.5380/reterm.v19i2.78625.

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Over the years, the contribution of photovoltaic energy to an eco-friendly world is continually increasing. Photovoltaic (PV) cells are commonly modelled as circuits, so finding the appropriate circuit model parameters of PV cells is crucial for performance evaluation, control, efficiency computations and maximum power point tracking of solar PV systems. The problem of finding circuit model of solar PV cells is referred to as “PV cell equivalent model problem”. In this paper, the existing research works on PV cell model parameter estimation problem are classified according to error quali-quant

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12

YAN, ZHAN-YUAN, JIN-YING MA, and XIAO-HONG ZHANG. "QUANTIZATION OF MESOSCOPIC QUARTZ PIEZOELECTRIC CRYSTAL EQUIVALENT CIRCUIT." Modern Physics Letters B 25, no. 11 (2011): 847–53. http://dx.doi.org/10.1142/s0217984911026139.

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In the framework of an advanced quantum theory for mesoscopic electric circuits in accord with the discreteness of electric charges, a mesoscopic quartz piezoelectric crystal equivalent circuit is quantized. To resolve the finite difference Schrödinger equation, an improved parameter perturbative method is proposed when WKB and perturbative method are inapplicable. With this method, the energy spectrum and wavefunctions of the system are obtained and used to calculate current quantum fluctuation as an application. The new method would be helpful to the application of the mesoscopic circuits qu

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13

Qiao, Wei. "Chaos in a Circuit System with Ferroelectric Capacitor." Applied Mechanics and Materials 268-270 (December 2012): 1308–12. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1308.

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Chaos depends on the random parameters are explored in circuit system with ferroelectric capacitor in this article. A random parameter is considered to characterize the random factors in this kind of capacitor. After we reduce the nonlinear circuit system with random parameter into the equivalent deterministic system by orthogonal polynomial approximation, the available effective numerical methods is applied to obtain the responses of the equivalent deterministic circuit system. Then by numerical simulations, we systematically explore the effect of the random parameter on chaos, and find the i

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14

Gao, Juanjuan, and Guizhen Lu. "CRLH Transmission Lines for Telecommunications: Fast and Effective Modeling." International Journal of Antennas and Propagation 2017 (2017): 1–5. http://dx.doi.org/10.1155/2017/1592783.

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A different parameter extraction approach based on zero immittances for composite right/left-handed (CRLH) structure is presented. For lossless unit cell equivalent circuit model, LC parameters of series and parallel branches are extracted according to series resonance frequency and parallel resonance frequency, respectively. This approach can be applied to symmetric and unbalanced CRLH structures. The parameter extraction procedure is provided and validated by T-type unit cell model. The responses of distributed prototype and extracted equivalent LC circuit model are in good agreement. The eq

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15

Xiong, Fei, and Xue Fan Wang. "Parameter Calculation of Brushless Doubly-Fed Machine Based on the Genetic Algorithm." Advanced Materials Research 354-355 (October 2011): 1261–64. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.1261.

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Because of special structure for the Brushless Doubly-Fed Machine (BDFM) and complex magnetic field coupling of different pole pairs, general parameter calculation and experiment methods are not accurate and fit for the BDFM. A parameter calculation method of the equivalent circuit for the BDFM based on the genetic algorithm (GA) is presented in this paper. The parameters of the equivalent circuit are considered as a group of unknown variables to solve the mathematical equation in different operating conditions. The difference between calculated and measured values is taken as a target functio

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16

Wurpts, Wiebold, Jens Twiefel, and Francois Brouet. "Equivalent Circuit Parametrization Utilizing FE Model Order Reduction and its Application to Piezoelectric Generators and Actuators." Energy Harvesting and Systems 4, no. 3 (2017): 115–29. http://dx.doi.org/10.1515/ehs-2017-0002.

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Abstract Equivalent circuits are often the first choice for the modeling of piezoelectric systems, as they allow for the consideration of the complete electro-mechanical system with one or even more modes. The parameters of the equivalent circuit model are identified by a measured or simulated frequency response. In this contribution a method for a direct modal condensation of the equivalent parameters for arbitrary FE structures and loads is described and discussed. First the proposed method is demonstrated for a continuous piezoelectric rod and then applied to discrete finite element models.

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17

Fujimaki, Tadao, Katsumi Ohniwa, and Osamu Miyashita. "Parameter Estimation of Equivalent Circuit for Induction Motor." IEEJ Transactions on Industry Applications 109, no. 8 (1989): 603. http://dx.doi.org/10.1541/ieejias.109.603.

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18

Anholt, R., and S. Swirhun. "Equivalent-circuit parameter extraction for cold GaAs MESFET's." IEEE Transactions on Microwave Theory and Techniques 39, no. 7 (1991): 1243–47. http://dx.doi.org/10.1109/22.85396.

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19

Kim, Jae-Hoon, Chang-Yeol Oh, Ki-Ryong Kim, Jong-Pil Lee, and Tae-Jin Kim. "Parameter Identification of Electrical Equivalent Circuits including Mass Transfer Parameters for the Selection of the Operating Frequencies of Pulsed PEM Water Electrolysis." Energies 15, no. 24 (2022): 9303. http://dx.doi.org/10.3390/en15249303.

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This paper proposes a parameter identification method for a PEM electrolyzer electrical equivalent circuit for pulse electrolysis. Since general water electrolysis mainly uses DC currents, identifying equivalent circuit parameters using electrical characteristics mostly ignores the operation frequency and unnecessarily adheres to the secondary RC model. However, looking at the Nyquist plot of the PEM electrolyzer, it can be confirmed that identifying the operational frequency is necessary, and the secondary RC model correction is essential. Therefore, the proposed method confirms the necessity

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20

Hu, Guobiao, Lihua Tang, Junrui Liang, and Raj Das. "Modelling of a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical interface circuits." Journal of Intelligent Material Systems and Structures 30, no. 13 (2019): 1896–912. http://dx.doi.org/10.1177/1045389x19849269.

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This article presents a modelling methodology for a cantilevered energy harvester with partial piezoelectric coverage and shunted to practical power conditioning interface circuits. First, the distributed parameter model of the partially covered piezoelectric energy harvester is developed and the associated analytical solution is derived. Subsequently, the single-degree-of-freedom representation model is developed and the explicit expressions of equivalent lumped parameters are derived by taking the static deflection as the approximated fundamental vibration mode. Based on the comparison with

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21

Soheli, Farhana. "Design of carbon nanotube field effect transistor (CNTFET) small signal model." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (2020): 180–87. https://doi.org/10.11591/ijece.v10i1.pp180-187.

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The progress of Carbon Nanotube Field Effect Transistor (CNTFET) devices has facilitated the trimness of mobile phones, computers and all other electronic devices. CNTFET devices contribute to model these electronics instruments that require designing the devices. This research consists of the design and verification of the CNTFET device's small signal model. Scattering parameters (S-parameters) is extracted from the CNTFET model to construct equivalent small model circuit. Current sources, capacitors and resistors are involved to evaluate this equivalent circuit. S-parameters and small si

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22

Tekgun, Didem. "Modified Induction Machine Equivalent Circuit including Solid Shaft Eddy Currents." Machines 11, no. 12 (2023): 1090. http://dx.doi.org/10.3390/machines11121090.

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The shaft eddy currents cause a significant saturation in two-pole induction machines (IMs) as they generate an opposing field and repulse the main flux, thus tightening the flux path. This results in inaccurate performance estimations with the magnetizing inductance measured in no-load conditions when the machine is loaded. This article presents a modified IM equivalent circuit considering the rotor back iron saturation effects caused by the solid shaft eddy currents using experimental measurements and recursive parameter estimation techniques. The classical equivalent circuit (CEC) parameter

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23

Zhang, Tao, Dong Hui Li, Fei Lin Ma, and Hua Jun Ran. "Estimation of Dielectric Response Parameters of Transformers Using Hybrid Genetic Algorithm." Advanced Materials Research 571 (September 2012): 579–83. http://dx.doi.org/10.4028/www.scientific.net/amr.571.579.

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It is important to reveal the relationship between the characteristic quantity of return voltage and polarization characteristics of dielectric in theory. In recent years, some researchers have proposed some equivalent circuit models to study the relationship between the equivalent circuit and the characteristic quantity of return voltage. However, seldom shows how the mathematical model of equivalent circuit parameters estimated is established and these parameters are estimated. The initial slope of return voltage is of great significance to identify the parameters of equivalent circuit based

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24

Annenkov, E. O., E. V. Zubova, A. S. Seleznev, and D. S. Fedosov. "Effectiveness of the method of two measurements in determining the parameters of equivalent circuits of electrical network elements for the highest harmon-ic components of currents and voltages." iPolytech Journal 26, no. 3 (2022): 401–14. http://dx.doi.org/10.21285/1814-3520-2022-3-401-414.

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The feasibility of applying the method of two measurements in determining the parameters of equivalent circuits of electrical network elements for the highest harmonic components is analyzed. Experiments were carried out using a MATLAB Simulink model of the common coupling point that includes a distorting load in the form of a three-phase rectifier, a nondistorting linear load and a generalized power system without distortion sources. The parameters of an equivalent circuit in the form of active bipoles, consisting of current distortion and conductivity sources, were determined using the metho

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25

Wu, Haitao, and Zhou Shang. "Research on Parameter Extraction Method of Photovoltaic Module Based on Improved Hybrid Algorithm." International Journal of Photoenergy 2020 (January 13, 2020): 1–12. http://dx.doi.org/10.1155/2020/6873847.

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Correct extraction of the equivalent circuit model parameters of photovoltaic modules is of great significance for power prediction, fault diagnosis, and system optimization of photovoltaic power generation systems. Although there are many methods developed to extract the equivalent circuit model parameters of the photovoltaic module, it is still challenging to ensure the stability and operational efficiency of the extract method. In order to effectively extract the parameters of photovoltaic modules, this paper proposes a hybrid algorithm combining analytical methods and differential evolutio

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26

Li, Kuang Cheng, Yan Liu, Xiao Ran Guo, and Zheng Liu. "Parameters Identification and Simulation of Equivalent Circuit Model of Lead-Acid Battery." Applied Mechanics and Materials 704 (December 2014): 211–14. http://dx.doi.org/10.4028/www.scientific.net/amm.704.211.

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As a complex system, lead-acid batteries are affected by a number of factors, most of the lead-acid battery equivalent circuit models contain a large number of parameters, and the validity and accuracy of the models have a great relationship with the values of these parameters. Therefore, the parameter identification is a very important job of the modeling work. In this paper, we use the 7-HK-182 lead-acid battery for the study, doing charging and discharging experiments of this lead-acid battery, establish an equivalent circuit model, and identifying the parameters of this model, at last, thr

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27

Islam, S. M. Rakiul, Sung-Yeul Park, and Balakumar Balasingam. "Unification of Internal Resistance Estimation Methods for Li-Ion Batteries Using Hysteresis-Free Equivalent Circuit Models." Batteries 6, no. 2 (2020): 32. http://dx.doi.org/10.3390/batteries6020032.

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Internal resistance is one of the important parameters in the Li-Ion battery. This paper identifies it using two different methods: electrochemical impedance spectroscopy (EIS) and parameter estimation based on equivalent circuit model (ECM). Comparing internal resistance, the conventional parameter estimation method yields a different value than EIS. Therefore, a hysteresis-free parameter identification method based on ECM is proposed. The proposed technique separates hysteresis resistance from the effective resistance. It precisely estimated actual internal resistance, which matches the inte

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28

KAMATA, Hiroshi. "Lumped Parameter Equivalent Circuit Analysis of the Multiport Transducer." Journal of the Marine Acoustics Society of Japan 34, no. 1 (2007): 17–24. http://dx.doi.org/10.3135/jmasj.34.17.

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29

Merrien, Tony, Audren Boulme, and Dominique Certon. "Lumped-Parameter Equivalent Circuit Modeling of CMUT Array Elements." IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control 2 (2022): 1–16. http://dx.doi.org/10.1109/ojuffc.2021.3134938.

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30

Morimoto, Shigeo, Yoji Takeda, and Takao Hirasa. "Parameter Measurement of PM Motor in dq Equivalent Circuit." IEEJ Transactions on Industry Applications 113, no. 11 (1993): 1330–31. http://dx.doi.org/10.1541/ieejias.113.1330.

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31

Bin Li, S. Prasad, Li-Wu Yang, and S. C. Wang. "A semianalytical parameter-extraction procedure for HBT equivalent circuit." IEEE Transactions on Microwave Theory and Techniques 46, no. 10 (1998): 1427–35. http://dx.doi.org/10.1109/22.721144.

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32

Peng, Xianghua, Jingyuan Yin, Longfei Sun, Zeyu Ye, and Tongzhen Wei. "Parameter Identification of Lithium-ion Battery Equivalent Circuit Model Based on Limited Memory Recursive Least Squares Algorithm with Variable Forgetting Factor." Journal of Physics: Conference Series 2246, no. 1 (2022): 012090. http://dx.doi.org/10.1088/1742-6596/2246/1/012090.

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Abstract Equivalent circuit method is the most widely used methodology in dynamic modeling of lithium-ion battery. An equivalent circuit with second-order RC network is used to model lithium-ion battery, and a limited memory recursive least square with variable forgetting factor (VFF-LMRLS) is proposed to identify the model parameters in this paper. Firstly, based on the current and voltage data measured from the battery cyclic discharging experiment, the VFF-LMRLS algorithm is used to identify the time-varying parameters of equivalent circuit model. Then, the model verification system is cons

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33

Radojković, Miloš, Giovanni Gugliandolo, Mariangela Latino, Zlatica Marinković, Giovanni Crupi, and Nicola Donato. "Development and Validation of an ANN-Based Approach for Temperature-Dependent Equivalent Circuit Modeling of SAW Resonators." Micromachines 14, no. 5 (2023): 967. http://dx.doi.org/10.3390/mi14050967.

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In this paper, a novel approach is proposed for modeling the temperature-dependent behavior of a surface acoustic wave (SAW) resonator, by using a combination of a lumped-element equivalent circuit model and artificial neural networks (ANNs). More specifically, the temperature dependence of the equivalent circuit parameters/elements (ECPs) is modeled using ANNs, making the equivalent circuit model temperature-dependent. The developed model is validated by using scattering parameter measurements performed on a SAW device with a nominal resonant frequency of 423.22 MHz and under different temper

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34

Hu, Xiao Ping, Liang Zheng, Ye Long Zhong, and Li Yun Ye. "Modeling and Simulation of the New Thin Film Transformer Equivalent Circuit." Advanced Materials Research 785-786 (September 2013): 1273–77. http://dx.doi.org/10.4028/www.scientific.net/amr.785-786.1273.

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We research the new thin film transformer equivalent circuit modeling, simulate and modify the traditional estimate formula of the transformer equivalent circuit parameters, in order to attain the automatic extraction of thin film transformer parameters. This paper used MATLAB and Agilent ADS on the thin film transformers for the S parameter simulation. The simulation results show the estimation has better accurate and universal, it also shows the effect of different number of turns and thin film materials on the properties of thin film transformer.

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35

Wang, Shunli, Carlos Fernandez, Xiaohan Liu, Jie Su, and Yanxin Xie. "The parameter identification method study of the splice equivalent circuit model for the aerial lithium-ion battery pack." Measurement and Control 51, no. 5-6 (2018): 125–37. http://dx.doi.org/10.1177/0020294018770930.

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According to the special condition expression of the aerial lithium-ion battery pack, a novel targeted equivalent model (Splice–Equivalent Circuit Model) is proposed and constructed. The Splice–Equivalent Circuit Model achieves the accurate mathematical expression of the special operating conditions and the working process for the lithium-ion battery pack, which is realized by using the equivalent simulation of different internal effects in the charging and discharging process of the battery pack. The theoretical study and analysis of the working principle is investigated to express the workin

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36

Trung, Nguyen Kien, and Nguyen Thi Diep. "Online parameter identification for equivalent circuit model of lithium-ion battery." Indonesian Journal of Electrical Engineering and Computer Science 31, no. 1 (2023): 151. http://dx.doi.org/10.11591/ijeecs.v31.i1.pp151-159.

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Parameter identification is the most fundamental task for the model-based battery management system. However, there are some difficulties in completing this task since most of the existing methods require at least one known parameter or a time-consuming offline procedure to extract parameters from measured data. Based on the well-known thevenin equivalent circuit for battery, this paper determines the unique purpose is introducing the bounded varying forgetting factor recursive least square approach which identifies online all the parameters of the battery model at the same time. The precision

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37

Nguyen, Kien Trung, and Thi Diep Nguyen. "Online parameter identification for equivalent circuit model of lithium-ion battery." Online parameter identification for equivalent circuit model of lithium-ion battery 31, no. 1 (2023): 151–59. https://doi.org/10.11591/ijeecs.v31.i1.pp151-159.

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Parameter identification is the most fundamental task for the model-based battery management system. However, there are some difficulties in completing this task since most of the existing methods require at least one known parameter or a time-consuming offline procedure to extract parameters from measured data. Based on the well-known thevenin equivalent circuit for battery, this paper determines the unique purpose is introducing the bounded varying forgetting factor recursive least square approach which identifies online all the parameters of the battery model at the same time. The precision

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38

Zhang, Xuejian, Yan Chang, Lin Zeng, Weifeng Xue, Lili Yan, and Shibin Zhang. "Universal and holistic privacy protection in quantum computing: a novel approach through quantum circuit equivalence homomorphic encryption." Quantum Science and Technology 9, no. 4 (2024): 045043. http://dx.doi.org/10.1088/2058-9565/ad749a.

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Abstract Due to the stringent hardware requirements and high cost, quantum computing as a service (QCaaS) is currently the main way to output quantum computing capabilities. However, the current QCaaS has significant shortcomings in privacy protection. The existing researches mainly focus on dataset privacy in some specific quantum machine learning algorithms, and there is no general and comprehensive research on privacy protection for dataset, parameter sets and algorithm models. To solve this problem, this paper defines the concept of generalized quantum homomorphic encryption and pioneers a

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39

Ma, Yunhan, Jingxian Liu, Junkai Huang, and Wanling Deng. "An Analytical Algorithm for Extracting Model Parameters in a Lumped-Parameter Equivalent Circuit of Solar Cells." Energies 15, no. 6 (2022): 2221. http://dx.doi.org/10.3390/en15062221.

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An analytical algorithm is proposed to extract model parameters in a single-diode lumped-parameter equivalent circuit of solar cells. In the calculation process, six relevant factors in the datasheet are necessary to establish a set of transcendental equations. This set of equations is analyzed and solved to acquire accurate values for the model parameters, by retaining equation items with important physical significance. Furthermore, based on simulations and reconstruction experiments, verifications show the accuracy and universality of the algorithm. Therefore, the proposed algorithm can be

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Tezcan, Mehmet Murat, Asim Gökhan Yetgin, Ali Ihsan Canakoglu, Bariş Cevher, Mustafa Turan, and Murat Ayaz. "Investigation of the effects of the equivalent circuit parameters on induction motor torque using three different equivalent circuit models." MATEC Web of Conferences 157 (2018): 01019. http://dx.doi.org/10.1051/matecconf/201815701019.

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In this study, the most vital characteristic properties of induction motor, motor starting, maximum and nominal torque are analyzed for what are affected. For the analysis of torque, L type, T type and IEEE 112 equivalent circuit model is employed. Torque change is investigated with the help of codes developed in MATLAB to be used in electrical machines course. First, the slip-moment characteristic curve of the induction motor is divided into three working zones and it was determined which equivalent circuit model gave the best results in these study zones. Later, such parameters as stator and

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Sun, Xiangdong, Jingrun Ji, Biying Ren, Chenxue Xie, and Dan Yan. "Adaptive Forgetting Factor Recursive Least Square Algorithm for Online Identification of Equivalent Circuit Model Parameters of a Lithium-Ion Battery." Energies 12, no. 12 (2019): 2242. http://dx.doi.org/10.3390/en12122242.

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With the popularity of electric vehicles, lithium-ion batteries as a power source are an important part of electric vehicles, and online identification of equivalent circuit model parameters of a lithium-ion battery has gradually become a focus of research. A second-order RC equivalent circuit model of a lithium-ion battery cell is modeled and analyzed in this paper. An adaptive expression of the variable forgetting factor is constructed. An adaptive forgetting factor recursive least square (AFFRLS) method for online identification of equivalent circuit model parameters is proposed. The equiva

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Abdullazyanov, E. Y., E. I. Gracheva, A. Alzakkar, M. F. Nizamiev, O. A. Shumikhina, and S. Valtchev. "Prediction and analysis of power consumption and power loss at industrial facilities." Power engineering: research, equipment, technology 24, no. 6 (2023): 3–12. http://dx.doi.org/10.30724/1998-9903-2022-24-6-3-12.

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THE PURPOSE. Conduct a study to improve the reliability of forecasting the magnitude of power consumption and power losses at an industrial enterprise.METHODS. Methods are used to determine and predict the parameters of consumption and losses of electricity at industrial facilities.RESULTS. To clarify the magnitude of electricity losses, it is proposed to use coefficients that take into account the type of load curves and show the ratio of the values of the sum of the squares of currents (powers) of the variable load curve and the values of the sum of average currents (powers), that is. the ra

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Tian, Han Min, Ai Hua Chen, Rui Xia Yang, Wen Feng Duan, and Feng Lan Tian. "A Method to Determine the Optimal Solids Content of TiO₂ in DSSC Working Electrode." Advanced Materials Research 463-464 (February 2012): 427–30. http://dx.doi.org/10.4028/www.scientific.net/amr.463-464.427.

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The way to determine the optimal solids content of TiO2 in DSSC working electrode was discussed. As a mathematical proof of the optimal conclusion extracting from the complex working mechanism of DSSCs and accidental factors, the equivalent circuit parameters of each curve are estimated corresponds to the equivalent circuit method first. And then, the trends in each parameter are analyzed. According to these trends, the optimal solids content of TiO2 are optimal identified

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Reva, Ihor, Oleh Todorov, and Maksim Bezzub. "Application of a neural network for determining the parameters of a transformer elimination circuit under the conditions of non-invasive monitoring." Electrical Engineering and Power Engineering, no. 1 (March 30, 2022): 19–29. http://dx.doi.org/10.15588/1607-6761-2022-1-2.

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Purpose. Application of a specially constructed neural network with the task of identifying the parameter substitution scheme in non-invasive monitoring conditions. Methodology. Use of electrical measurement methods by non-invasive monitoring, methods of identification and training of neural networks based on anterior and back propagation error, NARX networks. Findings. The power transformer is an important object of the power system of the electric shop substation. At the same time, frequent transitions from underload to partial overload mode are possible, which creates preconditions for the

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Zulueta, Asier, Ekaitz Zulueta, Javier Olarte, Unai Fernandez-Gamiz, Jose Manuel Lopez-Guede, and Saioa Etxeberria. "Electrochemical Impedance Spectrum Equivalent Circuit Parameter Identification Using a Deep Learning Technique." Electronics 12, no. 24 (2023): 5038. http://dx.doi.org/10.3390/electronics12245038.

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Physical models are suitable for the development and optimization of materials and cell designs, whereas models based on experimental data and electrical equivalent circuits (EECs) are suitable for the development of operation estimators, both for cells and batteries. This research work develops an innovative unsupervised artificial neural network (ANN) training cost function for identifying equivalent circuit parameters using electrochemical impedance spectroscopy (EIS) to identify and monitor parameter variations associated with different physicochemical processes that can be related to the

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Xu, Chuanzhong, Fei Yu, Wei Lin, and Gongyi Huang. "An Improved Organic Solar Cell Lumped-Parameter Equivalent Circuit Model." Crystals 8, no. 7 (2018): 277. http://dx.doi.org/10.3390/cryst8070277.

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Tilmans, Harrie A. C. "Equivalent circuit representation of electromechanical transducers: I. Lumped-parameter systems." Journal of Micromechanics and Microengineering 6, no. 1 (1996): 157–76. http://dx.doi.org/10.1088/0960-1317/6/1/036.

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Tilmans, Harrie A. C. "Equivalent circuit representation of electromechanical transducers: I. Lumped-parameter systems." Journal of Micromechanics and Microengineering 6, no. 3 (1996): 359. http://dx.doi.org/10.1088/0960-1317/6/3/009.

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Tilmans, Harrie A. C. "Equivalent circuit representation of electromechanical transducers: II. Distributed-parameter systems." Journal of Micromechanics and Microengineering 7, no. 4 (1997): 285–309. http://dx.doi.org/10.1088/0960-1317/7/4/005.

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Forrester, J., L. Li, J. N. Davidson, et al. "Equivalent circuit parameter extraction of low‐capacitance high‐damping PTs." Electronics Letters 56, no. 7 (2020): 347–50. http://dx.doi.org/10.1049/el.2019.3887.

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