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Journal articles on the topic 'Electric circuit analysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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1

Karpa, Mykhailo, and Vitalii Betsyl. "AUTOMATING COMPUTATIONS FOR ELECTRIC CIRCUIT ANALYSIS WITH LABVIEW." Measuring Equipment and Metrology 85, no. 2 (2024): 33–39. http://dx.doi.org/10.23939/istcmtm2024.02.033.

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The article considers the application of the theory of the complex variable function employing the LabVIEW graphical programming environment for automating the calculation of electric circuits. The software products have been created to implement the method of constructing the matrix of the system of linear algebraic equations by inspection for both the mesh current method and nodal potential method in electric circuits of direct and alternating current and voltage using a graphical programming environment, except for circuits with dependent sources. All developed programs can be converted int

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2

Rahimi, Mohammad, Behrad Soleymani, Farrokh Aminifar, and Amin Gholami. "A New Methodology for Circuit Analysis with Reverse Analysis Capability." Journal of Circuits, Systems and Computers 26, no. 06 (2017): 1750101. http://dx.doi.org/10.1142/s0218126617501018.

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This paper presents a novel technique for the analysis of looped linear time-invariant electric circuits. This approach works in both time and Laplace domains; any type of elements could hence be incorporated. The circuit elements are partitioned into twofold classes of basic circuit and subsidiaries. The basic circuit is a spanning tree of the network, and the subsidiaries include circuit elements hypothetically removed from the looped electric circuit to open the loops. The subsidiaries include a suit of passive elements which might not even make any interconnected circuit. The circuit gover

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3

Mihaylenko, V., J. Chunyak, and V. Bachinskiy. "Analysis of processes in converter with eleven zone regulation output voltage." POWER ENGINEERING: economics, technique, ecology, no. 3 (April 6, 2020): 35–40. http://dx.doi.org/10.20535/1813-5420.3.2020.228610.

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   Analysis of the electromagnetic processes is organized beside this article in electric circuit with semiconductor commutator . Mathematical model is created for analysis electro-magnetic processes in semiconductor converter with width pulsed regulation of the output voltage. The broughted graphs, which reflect the electromagnetic processes in electric circuit. Method much parametric functions was used when performing calculation. The mathematical model of the converter is created for eleven zoned regulations of the output voltage. Article is devoted to the development of a

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Batygin, Yuriy, Tetyana Gavrilova, Svitlana Shinderuk, and Evgeniy Chaplygin. "THE RESONANT AMPLIFIER OF THE ACTIVE ELECTRICAL POWER WITH ADDITIONAL VOLTAGE SOURCE. SUGGESTIONS, ANALYSIS, NUMERICAL ESTIMATES." Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, no. 3(17) (October 5, 2023): 3–10. http://dx.doi.org/10.20998/2413-4295.2023.03.01.

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The problem of increasing energy saving in industry leads to the need to develop new technical devices. The paper presents and analyzes the circuit of the resonance amplifier of active electric power, evaluates the characteristics of electromagnetic processes for the fundamental substantiation of the operation of real devices based on this circuit. Mathematical analysis of electromagnetic processes taking place was carried out using strict methods of the theory of electric circuits. The advantages of this scheme in comparison with similar previous proposals are shown. The device includes four

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5

Zhang, Wei. "Quantitative Analysis for Near-Field Characteristics of Converter Circuits." Applied Mechanics and Materials 48-49 (February 2011): 858–62. http://dx.doi.org/10.4028/www.scientific.net/amm.48-49.858.

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With the electric power industrial development, electric power device was abroad using as the core of switch converter. For a clear near-field characterization quantitative electromagnetic interference of converter circuits, this paper applied finite element method to analyze a Boost circuit. Transform topology structure of circuit and build corresponding entity finite element modeling. Quantitative analysis for different topology structure electromagnetic distributing and near-field characteristics, and it become clear that the distribution and the role of electromagnetic field of the circuit

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6

Chatzarakis, George E., P. G. Cottis, Marina D. Tortoreli, P. B. Malatestas, N. J. Kolliopoulos, and Spiros N. Livieratos. "Powerful Pedagogical Approaches for Finding Thevenin and Norton Equivalent Circuits for Linear Electric Circuits." International Journal of Electrical Engineering & Education 42, no. 4 (2005): 350–68. http://dx.doi.org/10.7227/ijeee.42.4.6.

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This paper presents two powerful pedagogical approaches for finding Thevenin and Norton equivalent circuits for d.c. linear electric circuits. These approaches are based solely on mesh analysis (for planar circuits) and on nodal analysis (for planar or nonplanar circuits) and simultaneously provide all equivalent circuit parameters from one circuit.

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7

Turner, Matthew. "Evaluation of an Early Three Phase Approach to Electric Circuit Instruction." International Journal of Engineering Pedagogy (iJEP) 7, no. 1 (2017): 69. http://dx.doi.org/10.3991/ijep.v7i1.6418.

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This paper presents a novel approach to the study of electric circuits: utilizing three phase electric power systems to introduce students to the techniques of circuit analysis beyond Kirchhoff’s and Ohm’s Laws. The efficacy of the pedagogy is evaluated by comparison of student performance on DC circuits assessment quiz pre and post intervention and by comparison to circuit analysis methods used by experts. Also discusses is how the curriculum effects students qualitative and quantitative conceptions of the behavior of voltage and current in DC resistive circuits.

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8

Jamaaluddin, Jamaaluddin, Izza Anshory, and Shazana Dhiya Ayuni. "Analysis of Overcurrent Safety in Miniature Circuit Breaker with Alternating Current." Journal of Electrical Technology UMY 5, no. 2 (2021): 68–73. http://dx.doi.org/10.18196/jet.v5i2.12508.

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In the utilization of solar energy, the equipment used includes Photovoltaic Cells, solar charging controls, batteries, protection devices, and other measuring devices. This solar power generation system is the name of a system that can convert solar energy into electric power. This solar power plant used in buildings is referred to as the Solar Building System (SBS). To perfect this solar power generation system, it is necessary to manage the electric power protection system. The protection system in this solar power plant includes the use of Miniature Circuit Breakers (MCB). This Miniature C

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9

Mykhailenko, Vladyslav, Vadym Svyatnenko, Yuliya Chunyak, and Vladyslav Bachynskiy. "Research of processes in a converter with four-zone voltage regulation and electromechanical load." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 39–41. http://dx.doi.org/10.20998/2079-3944.2021.1.07.

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The new mathematical models of the electromagnetic processes is designed in three-phase electric circuit of the semiconductor converters with many-server zoned regulation phases voltages disregarding losses in semiconductor commutator for quick estimation of the influence parameter loads on level and form of the output voltage. mathematical model of the semiconductor converter is also used for study of the connecting processes in semiconductor converter with actively-inductive load. Will develop the method multivariable function, what fall into algorithmic equations of the analysis formed and

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10

Priambodo, Purnomo Sidi, Yosua Adriadi, and Taufiq Alif Kurniawan. "Transformerless SoC-based current control switching battery charger for e-vehicle: design and analysis." E3S Web of Conferences 67 (2018): 03044. http://dx.doi.org/10.1051/e3sconf/20186703044.

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Electric-based vehicles become a necessity in the future to dramatically reduce the effects of pollution. There are various devices involve in the operation of electric vehicles, one of which is a battery charger. This paper discusses the design steps, circuit and ripple performance analysis associated with building a battery charger system. The analysis shows the differences between RL and RC circuits in controlling the output voltage average and the ripples. It shows how RLC mixed circuit improve performance in both controlling the output voltage average and the ripple suppression.

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11

Batygin, Yuriy, Svitlana Shinderuk, Evgen Chaplygin, Tetyana Gavrilova, and Denis Fendrykov. "RESONANT AMPLIFIER OF ACTIVE ELECTRICAL POWER.SUGGESTION, ANALYSIS, NUMERICAL ASSESSMENTS." Technical Sciences and Technologies, no. 3(29) (2022): 160–68. http://dx.doi.org/10.25140/2411-5363-2022-3(29)-160-168.

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The purpose of this work is to substantiate the real effectiveness of the proposed active electric power resonant amplifier circuit, represented by a sequence of four inductively coupled active-reactive circuits. The first of them is the input with a source of a harmonic signal to be amplified. The second one generates amplified reactive power in the voltage resonance mode. The third one carries out theoutput of power from the second circuit without the reverse influence of the amplification processes with an additional third-party voltage source in the current resonance mode. The fourth circu

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12

Reljin, Branimir, Slavica Ristić, and Milesa Srećković. "Analysis of Some Physical Phenomena and Processes by Equivalent Electrical Circuits." International Journal of Electrical Engineering & Education 33, no. 4 (1996): 353–72. http://dx.doi.org/10.1177/002072099603300407.

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Analysis of some physical phenomena and processes by equivalent electrical circuits Electric circuit analysis is a very powerful tool solving many complex problems. Consequently, most non-electrical problems can be efficiently resolved if they are modelled, first, by appropriate electric circuits. In this paper some physical phenomena (in thermodynamics, optics and dynamics of fluids) are chosen to illustrate the above statement. The modelling procedure exposed can also be extended to other problems in science.

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13

Мihaylenko, V., J. Chunyak, K. Trubitsin, and V. Bachynskiy. "MATHEMATICAL MODEL OF A TWELVE-PULSE CONVERTER WITH SIXTEEN ZONE CONTROL OF THE OUTPUT VOLTAGE AND ACTIVE-INDUCTIVE LOADS." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 37 (2021): 68–72. http://dx.doi.org/10.31319/2519-2884.37.2020.13.

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Analysis of the electromagnetic processes is organized in this article in electric circuit with semiconductor commutator. Mathematical model twelve pulses of the converter is created for analysis of the electromagnetic processes in semiconductor converter with width-pulse regulation of the output voltage. The broughted graphs, which reflect the electromagnetic processes in electric circuit. Method multivariable function was used when performing calculation. The mathematical model of the converter is created for five zoned regulations of the output voltage. Using method multivariable function w

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14

Liu, Ying Chun, Jian Ming Zhang, De Long Zhang, et al. "30A/60V Electric Car Charger Control Circuit Simulation." Advanced Materials Research 971-973 (June 2014): 950–53. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.950.

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Through analysis and comparison of existing charging method works , adding more links constant current charging and constant voltage charging on the basis of the three-stage charging mode is proposed to receive more in line with rechargeable batteries five-phase characteristic curve charging mode. By scaling the control circuit and the PI regulator circuits use the charging current value and the constant voltage is sampled , a constant voltage corresponding to the error value to be compared and outputs the PWM control chip SG3525, causing the output current of the front end circuit chip , the

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15

Boldyrev, Alexander. "Energy-efficient inverter circuit for the low-voltage asynchronous driver controller with autonomous power supply." E3S Web of Conferences 279 (2021): 01004. http://dx.doi.org/10.1051/e3sconf/202127901004.

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The design of the energy-efficient inverter circuit for the asynchronous frequency-controlled three-phase electric driver with autonomous low-voltage DC power supply. The components analysis of the electric drive, the main components selection approach: microcontroller, three-phase driver and power transistors. R&D prototype of the energy-efficient inverter circuit was created, characterized by an average consumption current reduced by 5%. Reducing energy losses is achieved by reducing dynamic losses in the power circuits of a low-voltage inverter and using several circuit solutions.

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16

Horyachko, Vsevolod, Orest Hamola, and Taras Ryzhyi. "Analysis of magnetic fields of electrical devices based on their circuit models." Computational Problems of Electrical Engineering 11, no. 1 (2021): 7–11. http://dx.doi.org/10.23939/jcpee2021.01.007.

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he article deals with an analysis of magnetic fields of electric machines and electromagnetic devices on the basis of their circuit mathematical models. The magnetic systems of electrical devices in these models are presented in the form of planar nonlinear magnetic circuits with lumped elements. The parameters of these elements are determined on the basis of geometric dimensions taking into account the design features of the devices and the physical parameters of the environment.

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17

Choi, Minseok. "Root Cause Analysis of Electric Fires and Risk Diagnosis of Parked Vehicles." Journal of the Korean Society of Hazard Mitigation 20, no. 1 (2020): 245–50. http://dx.doi.org/10.9798/kosham.2020.20.1.245.

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Generally, a vehicle's electrical circuits are protected against overcurrent. However, an overcurrent protector cannot completely prevent fires. In particular, fires that occur in parked vehicles are often caused by Joule heat and arc faults owing to contact failures, partial disconnection, arc tracking, and connection errors in the circuit that continues to receive electricity from the battery. Since the flowing current in such a case is not an overcurrent, the fuse will not react and may thereby cause a fire. Additionally, if a wire burns and causes a short circuit after the fire, the fuse w

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18

Nurhidayati, Indah, Aryanti Fitrianingsih, Sinta Marito Siagian, and Samaria Chrisna HS. "Analysis of I-V on Basic Electrical Circuit Using Ni Multisim App in Apply Physics." RSF Conference Series: Engineering and Technology 3, no. 1 (2023): 114–20. http://dx.doi.org/10.31098/cset.v3i1.743.

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Utilization of the NI Multisim application is useful for designing a circuit, starting with designing schematic circuits and analyzing and simulating. Increasing the use of technology so that it is very much needed in physics learning at the Polytechnic of Maritime Sciences on electrical circuit material. This study aims to measure and characterize I-V currents in an electrical circuit by comparison with laboratories and multisim applications. Research activities were carried out using the I-V Current and Voltage comparison analysis method using theory in the manual formula, practice with the

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19

Arabasi, Sameer. "Educational approach to the wye–delta transformations using simple circuit analysis techniques." International Journal of Electrical Engineering & Education 55, no. 3 (2018): 234–43. http://dx.doi.org/10.1177/0020720918767048.

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The wye-to-delta (Y–Δ) transformation is part of every circuit analysis course. In electric circuits textbooks, the transformation is found by comparing the two networks and making sure that the resistance between each pair of nodes in one network is the same as the resistance between the same pair of nodes in the other network. The two networks are compared as open-circuit networks. This creates confusion among students because usually the network is part of a larger closed-circuit network. In this paper, an alternative method is proposed. The new method starts from one configuration and find

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20

Batygin, Yuriy, Svitlana Shinderuk, Evgen Chaplygin, Olena Yeryomina, and Egor Tereh. "Introduction of an additional source of harmonic signal into the circuit of the electric power resonant amplifier." Automobile transport, no. 51 (December 29, 2022): 66–73. http://dx.doi.org/10.30977/at.2219-8342.2022.51.0.07.

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Problem. The problems of the electric power industry, caused by the depletion of the natural resources of the planet and the need to replace them, initiate the development of new physical and technical solutions with the practical use of the known natural phenomena. Goal. The purpose of this work is to propose to introduce an additional source of a harmonic signal (voltage or current) into the circuit of a resonant amplifier of electric power, to obtain calculated analytical dependencies for numerical estimates of the characteristics of ongoing electromagnetic processes, which make it possible

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21

Wang, Zhuo, and Hai Bao. "Analysis of the Energy Metering Problem in Dynamic Environment." Applied Mechanics and Materials 668-669 (October 2014): 673–76. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.673.

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The traditional electric power metering theory is a kind of no-error metering theory in sinusoidal steady-state circuit. However, the applying condition is too rigor, and the engineering environment is hard to fulfil, the application premise should be extended to dynamic. Ideal linear elements are adopted to build a first-order dynamic circuit. And the analytic expressions of the capacitor cumulative electric energy in the charging process are derived theoretically. It points out that the cumulative electric energy of capacitor in dynamic circuit is a nonzero value. This fully demonstrates tha

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22

Duan, Xiuzhen, Xiaopeng Li, and Yaning Liu. "Application of BP neural network in on-board charger fault diagnosis." Journal of Physics: Conference Series 2290, no. 1 (2022): 012004. http://dx.doi.org/10.1088/1742-6596/2290/1/012004.

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Abstract With the accelerated growth of the number of electric vehicles, the frequent occurrence of electric vehicle charging safety accidents has brought some safety hazards to people. The fault diagnosis of on-board charger circuit has gradually become the focus of attention of scholars. This paper uses simulation software to conduct modeling simulation analysis, failure mode analysis and data acquisition for the on-board charger of electric vehicles, and establishes a fault diagnosis model based on BP neural network, which is applied to the fault diagnosis of on-board charger circuits. The

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23

Zenkovich, Y. I., and A. A. Ivanenko. "ANALYSIS OF ELECTROMAGNETIC COMPATIBILITY OF TRACK CIRCUITS AND TRACTION POWER SUPPLY." World of Transport and Transportation 15, no. 1 (2017): 40–46. http://dx.doi.org/10.30932/1992-3252-2017-15-1-4.

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[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT The issues of electromagnetic compatibility of traction power supply devices with track circuits are considered in case ice phenomena on the contact wire. The calculated ratios for determining the value of the bias currents of the choke-transformers in the electric arc, which arises from the formation of ice on the contact wire, as well as the reasons for false occupation of track circuits at the station are analyzed. Keywords: electromagnetic compatibilit

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Januaris Pane, Asnida Nainggolan, Juliper Nainggolan, Bajongga Silaban, and Riossally Marselina Tumanggor. "Meningkatkan Minat dan Hasil Belajar Fisika Siswa melalui Bimbingan Belajar Menggunakan Alat Peraga Rangkaian Listrik." PaKMas: Jurnal Pengabdian Kepada Masyarakat 2, no. 1 (2022): 70–77. http://dx.doi.org/10.54259/pakmas.v2i1.818.

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Learning that occurs in schools certainly has many obstacles and difficulties for students. As a result of online learning that was previously done, many students did not understand the learning material. Learning that occurs and takes place for students in science lessons, especially physics, has been a difficult lesson because of the many formulas and theories that tend to be memorized so that students feel less interested. In physics lessons, experiments are needed to improve students' understanding, so tutoring is carried out after school to overcome students' difficulties using teaching a

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P., Reba, Susithra N., Deepa M., and Santhanamari G. "Effective Teaching of Electric Circuit Analysis through Jigsaw Cooperative Learning Method." Journal of Engineering Education Transformations 36, no. 1 (2022): 49–59. http://dx.doi.org/10.16920/jeet/2022/v36i1/22136.

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Abstract : In recent times, in addition to the conventional teaching methods, new pedagogical initiatives are indispensable to elongate the attention span of the present students from generation Z and generation alpha. Jigsaw is one of the Collaborative teaching practices which involves facilitators working in tandem with the students, instructing and mentoring them to solve problems. This paper presents the implementation of an enhanced Jigsaw learning method for teaching Circuit Analysis course for first-year students. Instead of randomly assigning students to groups, the proposed enhancemen

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Shishkin, I., and Sergii Lushchin. "Controlling electrical circuit of electric motor on igbt transistors." Electrical Engineering and Power Engineering, no. 1 (June 30, 2023): 30–35. http://dx.doi.org/10.15588/1607-6761-2023-1-3.

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Purpose. Development and analysis of the operation of an electrical circuit for controlling a 700 W direct current electric motor using a contactor on IGBT transistors for operation in diesel locomotives. Methodology. Analytical and computational methods for developing and analyzing the operation of an electrical circuit using a contactor on IGBT transistors. Findings. An electrical circuit for controlling a 700 W DC motor using IGBT transistors was developed. The circuit allows you to replace electromagnetic contactors with IGBT transistors to improve the technical characteristics and perform

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27

Došlo, Glorija, and Kristina Rajković. "Symbolic analysis of linear electric circuits with MIT Julia Symbolics.jl package." Tehnika 79, no. 1 (2024): 75–85. http://dx.doi.org/10.5937/tehnika2401075d.

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This paper presents novel free open-source software JuliaCAP for symbolic analysis of linear time-invariant electric circuits in the complex domain of the Unilateral Laplace Transform or Phasor Transform. Modified Nodal Analysis (MNA) has been chosen for formulation of circuit equations in JuliaCAP. JuliaCAP has been developed by Kristina Rajković, Glorija Došlo, Nikola Radojević, Tamara Petković and Ivana Stanojević, at the University of Belgrade - School of Electrical Engineering, Belgrade, Serbia. JuliaCAP is written in Julia, a free open-source (MIT licensed) programming language. Whereas

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28

Murashov, I., V. Frolov, D. Ivanov, and A. Kvashnin. "Analysis of Electromagnetic Processes Inside the Arc Interrupting System of a High-current Circuit Breaker." PLASMA PHYSICS AND TECHNOLOGY 4, no. 2 (2017): 161–64. http://dx.doi.org/10.14311/ppt.2017.2.161.

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Description of electromagnetic processes inside an arc interrupting system of high-current circuit breaker is presented in article. Non-stationary mathematical model of the circuit-breaker operation (short-circuit currents mode) is developed. The main regularities of the displacement of the electric arc inside an arc chute are established. The influence of the movable contact position on the conditions for the displacement of the electric arc is presented. Also, the influence of the arc chute material on the motion and interrupting of an electric arc (alternating and direct currents) is establ

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Takigawa, Kiyoshi, Atushi Hamada, Kensuke Kawasaki, and Hiromu Ariyoshi. "Analysis of Stability Control of a Power System with a Distributed Constant Circuit Model." Journal of Circuits, Systems and Computers 07, no. 04 (1997): 221–30. http://dx.doi.org/10.1142/s0218126697000164.

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From the load cut off tests on generators, it is well known that the power disturbance is transmitted from the test point to the other points with constant delay time. The phenomena shows that the electric power system has a similar dynamic characteristic to the distributed constant circuits. In this paper, the electric power system is expressed with the distributed constant circuit, so that the main disturbance characteristics are obtained without difficulty. Moreover, the method of suppressing the plural disturbances is discussed by employing the active sink method.

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Djekidel, Rabah, Ahmed Bessedik, and Abdechafik Hadjadj. "Electric field modeling and analysis of EHV power line using improved calculation method." Facta universitatis - series: Electronics and Energetics 31, no. 3 (2018): 425–45. http://dx.doi.org/10.2298/fuee1803425d.

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This paper aims is devoted to modeling and simulation of electric field created by EHV power transmission line of 275 kV using an efficient hybrid methodology, the charge simulation method (CSM) with the Simplex Simulated Annealing (SIMPSA) algorithm in order to find the optimal position and number of fictitious charges used in CSM for an accurate calculation. Various factors that affect the electric field intensity were analyzed; it is found that the influence of the conductor sagging is clearly remarked, the maximum electric field strength at 1 m above the ground level recorded at mid-span p

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VOLCHKOV, YURI D. "ENGINEERING ANALYSIS OF THE THREE-PHASE SHORT CIRCUIT MODE IN THE 10 KV ELECTRIC NETWORK TAKING INTO ACCOUNT THE INFLUENCE OF LOAD CURRENTS." Agricultural engineering, no. 6 (2021): 74–83. http://dx.doi.org/10.26897/2687-1149-2021-6-74-83.

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Abstract. The load current aff ects the value of the short-circuit current in the electric network and, consequently, the voltage value. In some cases, this infl uence must be taken into account for the correct choice of switching devices, remote monitoring the operating modes of electric networks, and determining the modes. It is possible to disconnect loads connected through magnetic starters and contactors. Failure to consider the infl uence of the load current can lead to an incorrect interpretation of the identifi ed grid operating modes during remote monitoring and, as a result, incorrec

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Liu, Ying Chun, Jian Ming Zhang, De Long Zhang, et al. "The Electric Car Charger Control Circuit Design and Analysis Module." Advanced Materials Research 971-973 (June 2014): 942–45. http://dx.doi.org/10.4028/www.scientific.net/amr.971-973.942.

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the article introduces theelectric car charger control circuit design thinking and ideas, the controlcircuit to be able to with the front-end circuit switching power supply and MCUto cooperate to complete the following phases the constant current and constantvoltage charging battery automatic conversion, and stable in each phase of thecurrent value or the voltage value. Analyze the circuit module, includingsampling module, PWM signal module, proportional amplifier module, PIadjustment module.

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Kramarov, Andrey, Aleksandr Pavlenko, Denis Batishchev, and Igor Trocenko. "Overview of Solutions and Design Methods for Linear Electric Generators with Permanent Magnets." Известия высших учебных заведений. Электромеханика 64, no. 6 (2021): 36–51. http://dx.doi.org/10.17213/0136-3360-2021-6-36-51.

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An overview of methods for calculating and designing linear electric generators with permanent magnets is given. The techniques are grouped according to the type of calculation approach used. A detailed analysis of the proposed methods and assumptions is carried out, conclusions are drawn about the possibility of their use in the design of electric generators with permanent magnets with solid magnetic circuit elements. The main assumptions are related to the representation of the parameters of the equivalent circuits of magnetic systems. It was found that the main part of the methods does not

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Korotkevich, M. A., and A. L. Starzhinskij. "THE ANALYSIS OF STRUCTURAL RELIABILITY OF THE MAIN ELECTRIC CONNECTION CIRCUITS OF NUCLEAR POWER PLANTS." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 60, no. 3 (2017): 191–97. http://dx.doi.org/10.21122/1029-7448-2017-60-3-191-197.

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The reliability of the main circuit of electrical connections at a nuclear electric power plant that has two units with a capacity of 1,200 MW each has been determined. Reliability, economical, maneuverable properties of the atomic power plant under study are largely determined by its main circuit, so the choice of the circuit for the design and its status in the process of operation occur to be critical objectives. Main electrical connection circuits in nuclear electric power plants are selected on the basis of the schematic networks of the energy system and the land attached to the plant. Th

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Cheng, Peng, Peng Qin, and Ji Hui Li. "Research and Simulation Analysis on Fault of Marine Integrated Electric Propulsion System." Advanced Materials Research 722 (July 2013): 116–20. http://dx.doi.org/10.4028/www.scientific.net/amr.722.116.

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In this paper, neutral grounding mode, short-circuit failure and loss of excitation of marine integrated electric propulsion system are analyzed and summarized. Marine integrated electric propulsion system module is built in PSCAD/EMTDC. Diesel generator and its excitation module, permanent magnet synchronous propulsion motor and load module,inverter module is included in the system, Short-circuit failure and loss of excitation was added to the simulation system. The changing process of ship electric propulsion system failure is obtained.

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Panchenko, Serhii, Vladyslav Panchenko, and Oleksandr Turenko. "ANALYSIS OF EMERGENCY MODES OF TRACTION INDUCTION ELECTRIC DRIVE." Collection of Scientific Works of the Ukrainian State University of Railway Transport, no. 203 (March 27, 2023): 56–63. http://dx.doi.org/10.18664/1994-7852.203.2023.277955.

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The operation process of the traction asynchronous electric drive of the rolling stock may be accompanied by the occurrence of emergency modes, which are characterized by current overloads and may lead to damaging power electric circuits or mechanical part of the electric drive. Therefore, studying electromagnetic processes that occur in emergency modes of operation is relevant, in particular, for developing systems aimed at diagnosing and protecting traction equipment. Ukrainian and foreign studies of emergency modes in an asynchronous electric drive were analyzed. The most frequent causes of

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Saldaña, Gaizka, José Ignacio San Martín, Inmaculada Zamora, Francisco Javier Asensio, and Oier Oñederra. "Analysis of the Current Electric Battery Models for Electric Vehicle Simulation." Energies 12, no. 14 (2019): 2750. http://dx.doi.org/10.3390/en12142750.

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Electric vehicles (EVs) are a promising technology to reduce emissions, but its development enormously depends on the technology used in batteries. Nowadays, batteries based on lithium-ion (Li-Ion) seems to be the most suitable for traction, especially nickel-manganese-cobalt (NMC) and nickel-cobalt-aluminum (NCA). An appropriate model of these batteries is fundamental for the simulation of several processes inside an EV, such as the state of charge (SoC) estimation, capacity and power fade analysis, lifetime calculus, or for developing control and optimization strategies. There are different

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Strizhkov, I. G., E. N. Chesnyuk, and R. B. Goldman. "Harmonic Analysis of Non-sinusoidal Currents During Heating of Transformers." Machinery and Equipment for Rural Area, no. 8 (August 27, 2023): 40–42. http://dx.doi.org/10.33267/2072-9642-2023-8-40-42.

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The results of the analysis of currents in the transformer windings when heated by low-frequency short-circuit currents are presented, for the description of which the Fourier series expansion of piecewise exponential functions is used. This makes it possible to mathematically model the heating process and solve the issues of the ratio of the power released in the electric and magnetic circuits of the transformer.

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Kokot, M., and Jan Holnicki-Szulc. "Health Monitoring of Electric Circuits." Key Engineering Materials 293-294 (September 2005): 669–76. http://dx.doi.org/10.4028/www.scientific.net/kem.293-294.669.

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A methodology of defect identification in linear DC circuits based on so called Virtual Distortion Method (VDM) will be presented. The proposed approach takes adventage of the analogy linking mechanical models of truss structures and electric circuits. In this paper we cover the issue of modelling defects in electric circuits by compatible state of distortions, next we introduce the concept of influence matrix Dij, which describes global sensitivity of the circuit and enables fast recalculation of system response, and we formulate a gradient method of defect identification (inverse problem) ba

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Goto, Takahiro, Yasuhiro Sugimoto, Daisuke Nakanishi, et al. "Analysis of electric-free pneumatic circuits based on logic circuit and its application." Nonlinear Theory and Its Applications, IEICE 15, no. 2 (2024): 459–72. http://dx.doi.org/10.1587/nolta.15.459.

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Akca, Hakan, and Ahmet Aktas. "Examination and experimental comparison of dc/dc buck converter topologies used in wireless electric vehicle charging applications." An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 14, no. 2 (2024): 81–89. http://dx.doi.org/10.11121/ijocta.1503.

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The studies on Wireless Power Transfer (WPT) technology and peripherals in Electric Vehicle (EV) applications are intensifying. While the energy received from the WPT system is transferred to the EV battery, the direct current (dc)/dc converter circuits are used. The dc/dc buck converter topologies are one of them. The converter circuits must be highly efficient, lightweight, and compact to have a high range in EV vehicles. There are asynchronous buck, synchronous buck, and interleaved synchronous buck converter circuit topologies from the literature. In this study, the efficiency results of t

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Jurić-Grgić, Ivica, Tonći Modrić, and Marin Mandić. "Transient Linear Circuit Analysis Using Finite Element Technique." Applied Sciences 12, no. 19 (2022): 9554. http://dx.doi.org/10.3390/app12199554.

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In this paper, a novel algorithm for a transient linear circuit analysis based on the Finite Element Technique (FET) was established. The FET procedure allows a straightforward solution for complex electric circuits since it is based on the Finite Element Method (FEM) approach. The developed algorithm allows us to select various types of time integration schemes when forming a local system of equations for a coupled circuit finite element. To illustrate the basic principle of the developed FET-based algorithm and to perform transient analysis, a random coupled linear circuit was analyzed. Nume

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BERSHADSKIY, Il'ya A., Aleksandr Yu GLADKOV, and Vladimir V. IVANILOV. "Analysis of Electrical Explosion Safety Based on Dynamic Electrical Circuit Switching Discharge Models." Elektrichestvo, no. 2 (2022): 19–28. http://dx.doi.org/10.24160/0013-5380-2022-2-19-28.

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A mathematical model describing a switching arc discharge in an RL electric circuit based on the Mayr equation is developed and tested. The body of mathematics representing an arc discharge appearing in an RL circuit that takes into account the dynamic current-voltage arc characteristic and arc thermal processes is described. The results from calculating the arc thermal inertia constant for the switching period for a resistive circuit by several known methods, including the values obtained during simulation, are given. It has been found that the arc discharge model that takes into account the

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Nedobitkov, A. I. "On specific short circuit parameters of 12 vautomobile electric systems." Pozharovzryvobezopasnost/Fire and Explosion Safety 29, no. 6 (2021): 50–60. http://dx.doi.org/10.22227/pvb.2020.29.06.50-60.

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Introduction. The data presented in the article show that the problem of differentiating primary and secondary short circuits is very important. The purpose of the article is to develop a scientifically grounded research method for copper conductors of automobile electric systems showing signs of a short circuit to identify the cause of its damage in a fire investigation. Materials and methods. The research was conducted with the help of JSM-6390LV scanning electron microscope having an energy dispersive microanalysis unit attached, DuraScan 20 microhardness tester, and Fluke Ti400 infrared th

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Kurilkin, Dmitry, Vladimir Grachev, and Valeriy Tanaev. "Defining Resistance in Traction Motor Circuit According to Microprocessor Control System Data." Bulletin of scientific research results 2022, no. 4 (2022): 74–89. http://dx.doi.org/10.20295/2223-9987-2022-4-74-89.

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Purpose: To develop methodology for determining the actual resistance of traction electric drive (TED) circuits of a locomotive with electric power transmission and with refined calculation of voltage losses of a collector-brush apparatus according to microprocessor control system data. These data are necessary for calculating actual traction characteristics of a locomotive as well as its braking characteristics in electric braking modes. Methods: Methods of electric machine theory, statistical processing and regression analysis of experimental data were used. Results: Based on the statistical

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di Benedetto, Marco, Luca Bigarelli, Alessandro Lidozzi, and Luca Solero. "Efficiency Comparison of 2-Level SiC Inverter and Soft Switching-Snubber SiC Inverter for Electric Motor Drives." Energies 14, no. 6 (2021): 1690. http://dx.doi.org/10.3390/en14061690.

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This paper focuses on the investigation and implementation of a high-performance power conversion system to reduce the overvoltage phenomenon in variable speed electric drive applications. Particularly, the pros and cons of using Silicon Carbide power MOSFETs in the power converter when a long power cable is employed in electric motor drive systems has been addressed. The three-phase two level inverter with the addition of snubber circuits that consist of capacitors and diodes has been investigated, designed and tested in order to mitigate the overvoltage problems without sacrificing the conve

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Deng, Jiang Hua, Yi Ming Zheng, Chao Tang, and Yan Ran Zhan. "Analysis of Charge Circuit and Discharge Circuit in Electromagnetic Riveting." Applied Mechanics and Materials 241-244 (December 2012): 606–9. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.606.

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The analysis of charge circuit and discharge circuit is a key part in the theoretical study of electromagnetic riveting electromagnetic field. Numerical simulation was used to establish the charge circuit model and the discharge circuit model which was an electric circuit-magnetic circuit coupling process by ANSYS. The simulation of charge circuit shows that the development of the charge current over time is an exponential descending change and that of the charge voltage over time is an exponential ascending change. And, the simulation of discharge circuit indicates that the driver is mainly s

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Mozga, Łukasz, and Tomasz Stoeck. "Evaluation of selected electric circuit simulators." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 9 (2018): 162–64. http://dx.doi.org/10.24136/atest.2018.307.

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This article describes the characteristics of circuit simulators that are available from any web browser and therefore do not require installation on the local computer's hard disk. They highlighted their principle of operation, library resources and practical use. The analysis was performed for the timer circuit.

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Sinyukova, T. V., V. N. Meshcheryakov, and A. V. Sinyukov. "Research of control systems for lifting and transport mechanisms." Power engineering: research, equipment, technology 23, no. 3 (2021): 47–61. http://dx.doi.org/10.30724/1998-9903-2021-23-3-47-61.

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THE PURPOSE. To investigate the existing methods of frequency control and their influence on the characteristics of the asynchronous motor, including the energy parameters. Consider new circuit solutions of the control type under study. Create a mathematical model of each of the methods of frequency control. To analyze the results obtained from the point of view of the behavior of mechanical, electromechanical and energy components. METHODS. When solving this problem, the method of computer simulation modeling, implemented by means of Matlab Simulink, was used. RESULTS. In this paper, various

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Kuptsov, Daniil V., and Regina T. Khazieva. "ANALYSIS OF CIRCUIT SOLUTIONS AND WAYS TO INCREASE ENERGY EFFICIENCY." ELECTRICAL AND DATA PROCESSING FACILITIES AND SYSTEMS 19, no. 2 (2023): 73–79. http://dx.doi.org/10.17122/1999-5458-2023-19-2-73-79.

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Relevance An inductive-capacitive converter (ICC) is one of the main elements of a capacitive storage device. With the right choice of the ICC scheme in a particular device, it is possible to achieve the necessary energy efficiency indicators of the final installation. The article sets the task of choosing the most energy-efficient design scheme of an inductive-capacitive converter for a capacitive storage device, which can be used in an electrohydroimpulse cleaning device, as well as in electric vehicle charging stations. Aim of research Conduct an analytical review of existing circuits of an

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