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Journal articles on the topic 'Alternating current source'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Matthew, N. O. Sadiku, A. Omotoso Adedamola, and M. Musa |. Adebowale E. Shadare Sarhan. "Flexible Alternating Current Transmission Systems." International Journal of Trend in Scientific Research and Development 3, no. 1 (2018): 809–11. https://doi.org/10.31142/ijtsrd19063.

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Flexible AC Transmission System FACTS refers to a family of power electronics based devices designed to increase power transfer capability of power transmission system. The main objective of FACTS is to obtain AC systems with a high level of flexibility just as in high voltage DC systems. FACTS uses power electronics for controlling power flow in a transmission system. This paper provides a brief introduction to FACTS devices or controllers. Matthew N. O. Sadiku | Adedamola A. Omotoso | Sarhan M. Musa | Adebowale E. Shadare "Flexible Alternating Current Transmission Systems" Publishe

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2

Zheng, Yue, C. H. Woo, and B. Wang. "Pulse-Loaded Ferroelectric Nanowire as an Alternating Current Source." Nano Letters 8, no. 10 (2008): 3131–36. http://dx.doi.org/10.1021/nl801294n.

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3

Mir, Ismail, Anas Benslimane, Jamal Bouchnaif, and Badreddine Lahfaoui. "Unbalance compensation topology for railway application based on pulse width modulation alternating current chopper." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 3 (2022): 1235–46. https://doi.org/10.11591/ijeecs.v26.i3.pp1235-1246.

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This paper focuses the study on the design of a new topology of unbalance compensators adopted by railway operators in the substations of high-speed railway lines, this compensation structure based on the concept of alternating current (AC)-chopper controlled impedance (CCI). The present document describes the CCI compensator in terms of the components constituting this structure, the installation of CCI to limit the unbalance factor according to the limit imposed by the moroccan energy provider (ONEE), and the calculation of the power losses generated by the CCI and the comparison with other

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4

Sruthi, S., Rasika Dhavse, and Jignesh N. Sarvaiya. "Precise, portable and wide band alternating current source for extremely low current values." Analog Integrated Circuits and Signal Processing 102, no. 2 (2019): 273–82. http://dx.doi.org/10.1007/s10470-019-01430-0.

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Zulkhairi, Mochammad Facta, Trias Andromeda, Hermawan, and Iwan Setiawan. "Single Phase AC Current Controller by Using Hysteresis Method." E3S Web of Conferences 125 (2019): 14004. http://dx.doi.org/10.1051/e3sconf/201912514004.

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Generally, the electrical power supply acts as a voltage source only but many applications, current sources are needed. In conventional methods, to provide a current source, an electric power supply with variable voltage is adjusted to give the amount of current. In some electrical applications and devices, there is a demand to have a constant voltage with a variable current. This paper proposes a single phase alternating current controller as a power supply with a current source that can be adjusted using the hysteresis method. The advantage of the hysteresis method is that the electric curre

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Colón, Luis A., and Eugene F. Barri. "Characterization of an Alternating-Current Plasma Source for Atomic Emission Spectroscopy." Applied Spectroscopy 45, no. 8 (1991): 1225–29. http://dx.doi.org/10.1366/0003702914335751.

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7

Effendi and Makandibengkel. "Studi Analisis Perbandingan Pwm Carrier Untuk Multilevel Inverter Tiga Fasa Lima Belas Level Dengan Sumber Input Simetris Terpisah." Jurnal JEETech 3, no. 1 (2022): 10–18. http://dx.doi.org/10.48056/jeetech.v3i1.185.

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Inverters are used to convert direct current or DC (Direct Current) sources into alternating current sources or AC (Alternating Current). A method is needed to make the output waveform close to a sinusoidal waveform. The Multi Level Inverter (MLI) method has a large number of levels and is closer to a sinusoidal wave. The three-phase MLI design with a separate symmetrical input source in this study is able to produce a three-phase output wave, where the resulting Total Harmonic Distortion (THD) value is smaller, namely 5.65% when using the Modified PWM method where the carrier signal has no fr

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Andreev, Ivan A. "Low-power three-phase current source based on a phase shifter." Bulletin of Ulyanovsk State Technical Univercity 105, no. 1 (2024): 41–43. http://dx.doi.org/10.61527/1684-7016-2024-1-41-43.

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A block diagram is given and a description of the operation of a low-power three-phase current source based on semiconductor devices is given. The proposed source can be used as an alternating current generator to power small power consumers

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Chukwuagu, M.I., and E.C. Aneke. "Development and Implementation of an Automatic Solar/Ac Power Supply Unit for a Refrigerator." Engineering and Technology Journal 08, no. 01 (2023): 1830–48. https://doi.org/10.5281/zenodo.7556693.

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This work focuses on a solar and AC power supply unit for a refrigerator. The two sources of power supply, an alternating current power supply and solar power supply, each connected to an automatic changeover used to switch power supply to the refrigerator unit. The alternating current power supply and solar power supply both charge the battery interchangeably through the inverter depending on the power source in use. The inverter unit consists of a battery used to store the solar energy needed to keep a constant supply of refrigeration to the refrigerator unit even when there is no alternatin

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10

Isaiev, V. V., and О. М. Velychko. "RESEARCH OF THE STATE PRIMARY STANDARD OF UNIT OF ALTERNATING CURRENT." Key title Zbìrnik naukovih pracʹ Odesʹkoï deržavnoï akademìï tehnìčnogo regulûvannâ ta âkostì -, no. 2(17) (2020): 14–22. http://dx.doi.org/10.32684/2412-5288-2020-2-17-14-22.

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The article is devoted to the results of the research in order to solve the problem of metrological support of production and operation of thermoelectric power converters, precision meters and AC power sources in the branches of the national economy. The optimal solution to the problem of metrological support is to create a national standard unit of alternating current. The article conducts theoretical research, comparison with foreign analogues and analysis of methods for measuring and reproducing the strength of alternating current. The analysis of the precision means intended for measuremen

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11

Shneen, Salam Waley, Ghada Adel Aziz, Fatin Nabeel Abdullah, and Dina Harith Shaker. "Simulation model of 1-phase pulse-width modulation rectifier by using MATLAB/Simulink." International Journal of Advances in Applied Sciences 11, no. 3 (2022): 253. http://dx.doi.org/10.11591/ijaas.v11.i3.pp253-262.

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One of the problems that need to be solved is the difference in the type of nutrition from the load. The feeding may be from a constant current source such as batteries and solar cells, and there are alternating current sources such as diesel machines, wind energy, and various power plants. All of these sources need electronic power devices that help convert and regulate the control and control of the type of feeding on the one hand and its amount on the other. From here, we show the size of the challenge occupied by electronic power transformers, as they are considered the solution to many pr

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12

Salam, Waley Shneen, Adel Aziz Ghada, Nabeel Abdullah Fatin, and Harith Shaker Dina. "Simulation model of 1-phase pulse-width modulation rectifier by using MATLAB/Simulink." International Journal of Advances in Applied Sciences (IJAAS) 11, no. 3 (2022): 253–62. https://doi.org/10.11591/ijaas.v11.i3.pp253-262.

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One of the problems that need to be solved is the difference in the type of nutrition from the load. The feeding may be from a constant current source such as batteries and solar cells, and there are alternating current sources such as diesel machines, wind energy, and various power plants. All of these sources need electronic power devices that help convert and regulate the control and control of the type of feeding on the one hand and its amount on the other. From here, we show the size of the challenge occupied by electronic power transformers, as they are considered the solution to many pr

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13

Seo, Jung-Hyun, Ji-Hyun Kim, and Sung-Hoo Ju. "Emission Characteristics of Fluorescent OLED with Alternating Current Power Source Driving Method." Journal of the Korean Institute of Electrical and Electronic Material Engineers 27, no. 2 (2014): 104–9. http://dx.doi.org/10.4313/jkem.2014.27.2.104.

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14

Liu Qing, Zou Dan, and Ji Ying-Hua. "Time evolution of mesoscopic RLC circuit driven by an alternating current source." Acta Physica Sinica 55, no. 4 (2006): 1596. http://dx.doi.org/10.7498/aps.55.1596.

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15

Ombaba, Jackson M., Joseph Sneddon, and Eugene F. Barry. "Atomic Absorption Spectrometry with an Alternating Current Plasma as an Atomization Source." Analytical Letters 26, no. 11 (1993): 2473–89. http://dx.doi.org/10.1080/00032719308017485.

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16

Vladimir, Burlaka, and Lavrova Elena. "IMPOVING ENERGY CHARACTERISTICS OF THE WELDING POWER SOURCES FOR TIG-AC WELDING." Eastern-European Journal of Enterprise Technologies 5, no. 5 (101) (2019): 38–43. https://doi.org/10.15587/1729-4061.2019.180925.

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This paper proposes a circuit solution and a control algorithm for a welding power source for TIG-AC welding with improved energy characteristics. The source is made using a welding transformer and a low-voltage series active power filter on power field effect transistors with a low channel resistance. The transformer used can be with normal or increased leakage. The proposed source is characterized by improved technical parameters due to the possibility to form V-I characteristic with the required stiffness without switching the welding transformer taps. Control scheme ensures the elimination

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17

Bai, Jia-Hao, Szu-Chi Huang, Po-Lei Lee, et al. "A High-Frequency Temporal-Interference Alternative Current Stimulation Device Using Pulse Amplitude Modulation with Push–Pull Current Sources." Bioengineering 12, no. 2 (2025): 164. https://doi.org/10.3390/bioengineering12020164.

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This study proposes a high-frequency Pulse Amplitude-Modulation Temporal-Interference (PAM-TI) current stimulation device, which utilizes two sets of Amplitude-modulated transcranial alternating current stimulation (AM-tACS): one AM frequency at f0 (where f0 = 2 kHz) (source 1) and the other AM frequency at f1 = f0 + △f (where f1 = 2.01 kHz) (source 2), to generate a △f (where △f = 10 Hz) envelope modulated at a fc (where fc = 100 kHz) high carrier frequency. The high carrier frequency reduces body impedance and conserves more stimulation power, allowing it to penetrate the skin and reach the

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18

Li, Shixiao, Yijian Xu, Zhiyu Zhan, et al. "Dynamic Adaptive Display System for Electrowetting Displays Based on Alternating Current and Direct Current." Micromachines 13, no. 10 (2022): 1791. http://dx.doi.org/10.3390/mi13101791.

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As a representative of the new reflective display technology, electrowetting display (EWD) technology can be used as a video playback display device due to its fast response characteristics. Direct current (DC) driving brings excellent reflectivity, but static images cannot be displayed continually due to charge trapping, and it can cause afterimages when playing a dynamic video due to contact angle hysteresis. Alternating current (AC) driving brings a good dynamic video refresh ability to EWDs, but that can cause flickers. In this paper, a dynamic adaptive display model based on thin film tra

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Tatnell, David M., Mark S. Heath, Steven P. Hepplestone, et al. "Coupling and confinement of current in thermoacoustic phased arrays." Science Advances 6, no. 27 (2020): eabb2752. http://dx.doi.org/10.1126/sciadv.abb2752.

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When a medium is rapidly heated and cooled, heat transfers to its surroundings as sound. A controllable source of this sound is realized through joule heating of thin, conductive films by an alternating current. Here, we show that arrays of these sources generate sound unique to this mechanism. From the sound alone, we spatially resolve current flow by varying the film geometry and electrical phase. Confinement concentrates heat to such a degree that the film properties become largely irrelevant. Electrical coupling between sources creates its own distinctive sound that depends on the current

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20

Salim, M. Barkah, Titin Novita Sari, and Nyoto Suseno. "The Effect of Using Monocrystalline Solar Panels on Alternating Current (AC) and Direct Current (DC) Lamps." International Journal of Research and Review 10, no. 7 (2023): 274–82. http://dx.doi.org/10.52403/ijrr.20230736.

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Background: Fossil energy is an energy source that comes from nature and contains hydrocarbons such as gas, coal, and oil. Many other forms of renewable energy are available in Indonesia, such as solar, wind, and hydroelectric energy. We know that Indonesia is located on the equator. So it has a very abundant source of solar energy. However, in Indonesia, solar energy has not been utilized optimally. Even though solar energy has a source of heat energy that can be used as electrical energy using solar panels. The purpose of this study was to determine the effect of the effectiveness of using m

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21

Arvind, P. S. Chandi, R. C. Singh, D. Indumathi, and R. Shankar. "Random sampling of an alternating current source: A tool for teaching probabilistic observations." American Journal of Physics 72, no. 1 (2004): 76–82. http://dx.doi.org/10.1119/1.1593659.

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22

Usmanov, Dilshadbek Tursunbaevich, Lee Chuin Chen, Zhan Yu, Shinichi Yamabe, Shigeyoshi Sakaki, and Kenzo Hiraoka. "Atmospheric pressure chemical ionization of explosives using alternating current corona discharge ion source." Journal of Mass Spectrometry 50, no. 4 (2015): ii. http://dx.doi.org/10.1002/jms.3483.

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23

Usmanov, D. T., L. C. Chen, Z. Yu, S. Yamabe, S. Sakaki, and K. Hiraoka. "Atmospheric pressure chemical ionization of explosives using alternating current corona discharge ion source." Journal of Mass Spectrometry 50, no. 4 (2015): 651–61. http://dx.doi.org/10.1002/jms.3552.

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Bolyukh, V. F., I. S. Schukin, and J. Lasocki. "Influence of the initial winding displacement on the indicators of the electromechanical induction accelerator of cylindrical configuration." Electrical Engineering & Electromechanics, no. 5 (October 18, 2021): 3–10. http://dx.doi.org/10.20998/2074-272x.2021.5.01.

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Purpose. The purpose of the article is to determine the influence of the initial displacement of the windings on the indicators of an electromechanical induction accelerator of a cylindrical configuration with pulsed excitation from a capacitive energy storage and with short-term excitation from an alternating voltage source. Methodology. To take into account the interrelated electrical, magnetic, mechanical and thermal processes, as well as a number of nonlinear dependencies, we use the lumped parameters of the windings, and the solutions of the equations describing these processes are presen

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25

Li, Wen. "Advancements and comparative analysis of high-voltage direct current transmission technologies." Applied and Computational Engineering 42, no. 1 (2024): 40–46. http://dx.doi.org/10.54254/2755-2721/42/20230682.

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This paper outlines the fundamental principles of high-voltage direct current (HVDC) transmission, elucidating its two primary variants: current-source converter (CSC) HVDC and voltage-source converter (VSC) HVDC. It also undertakes a comparative analysis with high-voltage alternating current (HVAC) technologies, focusing on aspects such as power transmission efficiency and cost-effectiveness, drawing upon prior research findings. Additionally, the paper underscores the critical role of circuit-breakers (CB) as essential components for controlling HVDC systems. HVDC technology plays a pivotal

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Effraim, Patrick, Mr Napoleon Addison, and Mr Abayemah Alphonus Bayor. "Design and Analysis of an Automatic Power Changeover with Backup." International Journal of Research and Innovation in Applied Science 07, no. 08 (2022): 42–49. http://dx.doi.org/10.51584/ijrias.2022.7806.

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The stability of the power supply in Ghana and another part of Africa is a major concern to the community and shop owners. The need for alternative power supply support and switching of load between two power sources. The system will eliminate the need for manual intervention by sensing the main gridline supply and switching to a backup source. Automation charger over to the backup source will eliminate the delay and provide efficiency in production. The system will automatically switch back when main gridline power is restored back. the system uses a microcontroller as the main automatic chan

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Roberto, Edward Samuel, Thein Tun Aung, Atif Hassan, and Abdul Wase. "Electromagnetic Interference from Swimming Pool Generator Current Causing Inappropriate ICD Discharges." Case Reports in Cardiology 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/6714307.

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Electromagnetic interference (EMI) includes any electromagnetic field signal that can be detected by device circuitry, with potentially serious consequences: incorrect sensing, pacing, device mode switching, and defibrillation. This is a unique case of extracardiac EMI by alternating current leakage from a submerged motor used to recycle chlorinated water, resulting in false rhythm detection and inappropriate ICD discharge. A 31-year-old female with arrhythmogenic right ventricular cardiomyopathy and Medtronic dual-chamber ICD placement presented after several inappropriate ICD shocks at the p

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Feng, Ze Hu. "The Designation of Programmable Direct-Current Voltage-Stabilized Source Based on Micro Controller Unit." Advanced Materials Research 542-543 (June 2012): 595–99. http://dx.doi.org/10.4028/www.scientific.net/amr.542-543.595.

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Along with the rapid development of the electric technology, the direct-current power was wide application, its quality immediately influence operating performance of electrical equipment or controlling system. At present, basic link of each direct-current power is approximately same in the market. They include the alternating current supply, alternating current transformer (sometimes not to use), the leveling circuit, and the filter voltage-stabilizer circuit and so on. This article introduced the method and the principle of MCU controlling system which was used in the direct-current voltage-

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Wang, Xiujuan, Zhihong Fu, Yao Wang, Wendong Wang, Wei Liu, and Junli Zhao. "A Wide-Frequency Constant-Amplitude Transmitting Circuit for Frequency Domain Electromagnetic Detection Transmitter." Electronics 8, no. 6 (2019): 640. http://dx.doi.org/10.3390/electronics8060640.

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In this paper, a novel AC magnetic transmitter current source circuit is proposed for application of frequency domain electromagnetic method (FEM) prospecting. The proposed current source circuit is capable of generating high frequency and high constant amplitude currents, which are key technical problems for FEM. It is suitable for very wide frequencies. The main circuit of the proposed current source consists of a rising-edge enhancing unit, a constant current control unit, and a high voltage clamping unit. Large constant clamping voltage is applied during the rising edge and the falling edg

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Huh, Sung-Ryul, Bong-Ki Jung, Jong-Gab Jo, et al. "Development of a Cs-free negative hydrogen ion source system using multi-pulsed plasma sources." Review of Scientific Instruments 93, no. 6 (2022): 063503. http://dx.doi.org/10.1063/5.0068639.

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The Korea Atomic Energy Research Institute has recently proposed and developed a novel cesium-free negative hydrogen/deuterium ion source system based on two pulsed plasma sources for fusion and particle accelerator applications. The main feature of this ion source system is the use of both magnetic filters and plasma pulsing (also called the temporal filter). The system operates with two alternate pulsing sequences related to the respective plasma sources, thereby switching the plasmas in the after-glow state in an alternating manner. This study investigates the temporal behavior of deuterium

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Al-Rawi, Aoday H., W. M. A. Ibrahim, and Eraj Humayun Mirza. "DC feedback for wide band frequency fixed current source." Journal of Electrical Bioimpedance 4, no. 1 (2019): 33–37. http://dx.doi.org/10.5617/jeb.294.

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Abstract Alternating current sources are mainly used in bioelectrical impedance devices. Nowadays 50 – 100 kHz bioelectrical impedance devices are commonly used for body composition analysis. High frequency bioelectrical impedance analysis devices are mostly used in bioimpedance tomography and blood analysis. High speed op-amps and voltage comparators are used in this circuit. Direct current feedback is used to prevent delay. An N-Channel J-FET transistor was used to establish the voltage controlled gain amplifier (VCG). A sine wave signal has been applied as input voltage. The value of this s

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Nurdillayeva, R. N., A. Bayeshov, A. Zh Abdikerim, and G. N. Zhylysbayeva. "ELECTROCHEMICAL DISSOLUTION OF TITANIUM ELECTRODES POLARIZED BY ALTERNATING CURRENT IN A HYDROBROMIC ACID AQUEOUS SOLUTION." Chemical Journal of Kazakhstan 77, no. 1 (2022): 25–36. http://dx.doi.org/10.51580/2022-1/2710-1185.54.

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The work shows the patterns of electrochemical dissolution of titanium electrodes polarized by alternating current in an aqueous solution of hydrogen bromide. The current density (200-1200 A/m2), hydrogen bromide concentration (1.0-5.0 M), electrolysis duration (0.25-2.0 hours), and electrolyte temperature depend on the current rate of the titanium electrode in the alternating current source (20°C-80°C) were considered. The maximum value of current yield was obtained at a current density of 400 A/m2 when titanium electrodes were polarized by an alternating current and it was recorded that the

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Hu, Ju-ju, Shi-hua Cai, and Ying-hua Ji. "Squeezing Effect of the Charge and Current in Mesoscopic Coupled Circuit with Alternating Source." International Journal of Theoretical Physics 45, no. 11 (2006): 1983–92. http://dx.doi.org/10.1007/s10773-006-9170-8.

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Jaksic, Nikola, Andrea Scarabosio, and Hans Meister. "Pressure gauge filament for neutral gas density measurement using alternating current as source power." Fusion Engineering and Design 115 (February 2017): 1–5. http://dx.doi.org/10.1016/j.fusengdes.2016.12.023.

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Coker, J. Olakunle, and B. Abdulrahaman Ogunji. "Design and construction of an inverter using solar cell as a source of charger." Journal of Applied and Natural Science 5, no. 1 (2013): 30–36. http://dx.doi.org/10.31018/jans.v5i1.277.

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The present study is basically on electricity generation in which solar cell or module is used to power an inverter. This can also be called photovoltaic system, because it consists of solar modules, solar charge controller, 24V.d.c battery and an inverter. Solar modules serve as source of charger through solar charge controller to the battery and inverter are used in converting the direct current into an alternating current for the domestic appliance. This study is very useful in electricity generation especially in a developing country such as Nigeria where there is epileptic power supply. I

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Honcharov, Yevgen, Nataliya Kruykova, Vladyslav Markov, and Igor Polyakov. "A definition of the "reactive power" concept." Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and Practice, no. 1 (5) (May 28, 2021): 47–51. http://dx.doi.org/10.20998/2079-3944.2021.1.09.

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A definition of the "reactive power" concept needs to be clarified, since in the literature it is often given extremely vaguely, which causes difficulties in students' perception and is not entirely clear to the general public. Analysis of numerous sources shows that the physical meaning of this concept almost escapes the definitions given in these sources. Moreover, the formula by which the reactive power is calculated raises no objections. However, it does not explain the physical meaning of the concept. The need for a capacious definition that reflects the physical meaning is long overdue.

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V., F. Bolyukh, S. Schukin I., and Lasocki J. "Influence of the initial winding displacement on the indicators of the electromechanical induction accelerator of cylindrical configuration." Electrical Engineering & Electromechanics, no. 5 (October 18, 2021): 3–10. https://doi.org/10.20998/2074-272X.2021.5.01.

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<strong><em>Purpose. </em></strong><em>The purpose of the article is to determine the influence of the initial displacement of the windings on the indicators of an electromechanical induction accelerator of a cylindrical configuration with pulsed excitation from a capacitive energy storage and with short-term excitation from an alternating voltage source. <strong>Methodology.</strong></em> <em>To take into account the interrelated electrical, magnetic, mechanical and thermal processes, as well as a number of nonlinear dependencies, we use the lumped parameters of the windings, a

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Sato, Ryo, Terumasa Kuge, Shuji Nakanishi, and Yoshiharu Mukouyama. "Simple Direct Alternating Current Battery Using Iron Electrodes." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4584. https://doi.org/10.1149/ma2024-02674584mtgabs.

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Alternating current (AC) is currently used as a power source for a wide variety of electronic and electrical devices. Direct AC batteries, which generate AC without external devices, are expected to find a variety of applications. Despite the development of various chemical batteries, direct AC batteries with this capability have not been reported. To realize a direct AC battery, the current flow between the two electrodes needs to be spontaneously and repeatedly reversed. In other words, the electrodes of the battery need to alternately undergo oxidation and reduction reactions. On the other

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Hayden, Thomas, Joseph Mazzella, Len Krissa, and Christian Akuchie. "A Global Open-Source Approach to High-Voltage Induction Risk." Materials Performance 64, no. 7 (2025): 24–27. https://doi.org/10.5006/mp2025_64_7-24.

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This study combines geospatial datasets, open-source tools, and circuit-based analysis with modern computational capabilities to provide a scalable solution for estimating corrosion susceptibility to high-voltage alternating current (HVAC) powerlines. The resulting toolset is non-proprietary and published as an open-source tool for use by operators and corrosion professionals.

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Hakaew, Pratimakorn, Piyapat Panmuang, Prakasit Prabpal, and Chonlatee Photong. "An Application of Multi-Frequency Alternating Current Source for VES on Soil Resistivity Measurement and Investigation." Instrumentation Mesure Métrologie 21, no. 2 (2022): 79–85. http://dx.doi.org/10.18280/i2m.210206.

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This paper is present an application of multi-frequency alternating current source that can be adjust the frequency from 1 Hz to 1 kHz for vertical electrical sounding (VES) on soil resistivity investigations. Researchers have used the four-point electrodes array method for resistivity method in laboratory and field trial of soil resistivity measurements. The result in laboratory found that in each frequency of current source has significate influence on the homogeneous soil resistivity. It was shown that the implemented equipment can be used to measure the soil resistivity as required. In fie

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Mir, Ismail, Anas Benslimane, Jamal Bouchnaif, and Badreddine Lahfaoui. "Unbalance compensation topology for railway application based on pulse width modulation alternating current chopper." Indonesian Journal of Electrical Engineering and Computer Science 26, no. 3 (2022): 1235. http://dx.doi.org/10.11591/ijeecs.v26.i3.pp1235-1246.

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This paper focuses the study <span>on the design of a new topology of unbalance compensators adopted by railway operators in the substations of high-speed railway lines, this compensation structure based on the concept of alternating current (AC)-chopper controlled impedance (CCI). The present document describes the CCI compensator in terms of the components constituting this structure, the installation of CCI to limit the unbalance factor according to the limit imposed by the moroccan energy provider (ONEE), and the calculation of the power losses generated by the CCI and the comparison

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Saadeh, Mahmood, Mohammad Hamdan, and Osama Saadeh. "Modelling and control of LCL voltage source converter-based hybrid high voltage alternating current/high voltage direct current system." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 2 (2025): 1297. https://doi.org/10.11591/ijece.v15i2.pp1297-1321.

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Voltage source converters (VSCs) have revolutionized high voltage direct current (HVDC) transmission, offering numerous advantages such as black start capability, absence of commutation failure, and efficient control of bidirectional power flow. This study introduces a comparative analysis of advanced VSC technologies, focusing on a novel series hybrid converter incorporating an inductor-capacitor-inductor (LCL) passive circuit. This configuration is explored for its potential to enhance both high voltage alternating current (HVAC) and high voltage direct current (HVDC) side fault suppression

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Saadeh, Mahmood, Mohammad Hamdan, and Osama Saadeh. "Modelling and control of LCL voltage source converter-based hybrid high voltage alternating current/high voltage direct current system." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 2 (2025): 1297–321. https://doi.org/10.11591/ijece.v15i2.pp1297-1321.

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Abstract:

Voltage source converters (VSCs) have revolutionized high voltage direct current (HVDC) transmission, offering numerous advantages such as black start capability, absence of commutation failure, and efficient control of bidirectional power flow. This study introduces a comparative analysis of advanced VSC technologies, focusing on a novel series hybrid converter incorporating an inductor-capacitor-inductor (LCL) passive circuit. This configuration is explored for its potential to enhance both high voltage alternating current (HVAC) and high voltage direct cur

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Menshikov, Ya A. "Measuring the Equivalent Series Resistance of Chemical Current Sources by the Current Interruption Method for a Given Time." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 5 (104) (October 2022): 105–19. http://dx.doi.org/10.18698/1812-3368-2022-5-105-119.

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It is proposed to measure the equivalent series resistance of various chemical current sources by the method of periodic interruption of the charge current or of the discharge current for a given time period. The current interruption frequency and duration could be selected from a wide range of values. By changing the current interruption duration, it becomes possible to significantly vary conditions in measuring the equivalent series resistance. Thus, when the current is interrupted for 0.5 ms, the proposed method approaches the resistance measurement by the alternating current method with a

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FUKUSHIMA, Hiroyuki. "Elimination of spectral interferences in the hollow cathode source by an alternating current excitation technique." Journal of the Spectroscopical Society of Japan 36, no. 1 (1987): 46–50. http://dx.doi.org/10.5111/bunkou.36.46.

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Alshammari, Meshari, and Maeve Duffy. "Review of Single-Phase Bidirectional Inverter Topologies for Renewable Energy Systems with DC Distribution." Energies 15, no. 18 (2022): 6836. http://dx.doi.org/10.3390/en15186836.

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Recent developments in renewable energy installations in buildings have highlighted the potential improvement in energy efficiency provided by direct current (DC) distribution over traditional alternating current (AC) distribution. This is explained by the increase in DC load types and energy storage systems such as batteries, while renewable energy sources such as photovoltaics (PVs) produce electricity in DC form. In order to connect a DC distribution system to the alternating current grid (e.g., for backup, delivering energy storage to the grid) there is a need for a bidirectional inverter,

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Weis, Sebastian, Stefan Brumm, Robin Grunert, Jan Morgenschweis, Jürgen Bosler, and Thomas Grund. "Influence of Current Modulation on Melting Behavior during Wire Arc Spraying." Metals 12, no. 8 (2022): 1347. http://dx.doi.org/10.3390/met12081347.

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The atomizing gas dynamics and the applied process energy have a significant influence on the produced particles. The melting process of the two wires can be influenced by current modulation. As for arc welding processes, more and more electronic and software-controlled machines are being used for arc spraying and will have replaced conventional power sources in the future. Due to the highly dynamic, fast regulating computing technology in the latest energy source, technology arcs can be operated with different current forms and types. The modern machines allow process-stable, reproducible var

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Zhou, Hong Yu. "The Main Circuit Studies of Current Mode APF Based on SPWM Technology." Advanced Materials Research 756-759 (September 2013): 4279–82. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.4279.

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It is become a relative mature technique now that Active Power Filter can do harmonic suppression and reactive compensation to alternating current net of nonlinear load. This paper contrasts passive and active filter technology in harmonic suppression, and introduces the classification of passive filter as well as working principle. This paper also discusses current-source APF consisting of multi-modular and phase shifted SPWM converters and cascade multilevel converters applied in current-source APF which can carry out high switch frequency effect under the lower switch frequencies. Finally,

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Girma, Chimdi Tadesse, and chi song. "Voltage control of bidirectional DC-DC converter with constant power source." MATEC Web of Conferences 232 (2018): 04038. http://dx.doi.org/10.1051/matecconf/201823204038.

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—Bidirectional DC/DC converters are used in the interface of the battery bank and the high voltage direct current terminal of an inverter. The performance of the system depends on the control of voltage and current across the circuit. Voltage control in eliminates the need for changing the control loop when the power supply is changed to the alternating current source. The report explains the constant power supply voltage control. The diagram for the bidirectional dc/dc converters is analysed and the mathematical representations are given. The dynamic performance of the circuit is calculated t

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Cavalcanti, Mariana de Morais, Tatiane Costa, Alex C. Pereira, et al. "Case Studies for Supplying the Alternating Current Auxiliary Systems of Substations with a Voltage Equal to or Higher than 230 kV." Energies 16, no. 14 (2023): 5396. http://dx.doi.org/10.3390/en16145396.

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This paper presents case studies for replacing diesel generators (DGs) that are used as the main and emergency power sources for alternating current (AC) auxiliary services in substations (SS) within the transmission network (voltage greater than or equal to 230 kV). The objective of this research is to present a solution that is more reliable, environmentally friendly, and financially viable than DGs. To achieve this, the proposed solutions incorporate Battery Energy Storage Systems (BESSs) with or without the integration of Photovoltaic (PV) Systems. These solutions were simulated using the

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