Results 1 to 10 of about 114,797 (162)

Practicability Research on “Phase-Hopping” AC–AC Frequency Conversion Technology

open access: yesIEEE Access, 2020
The “Phase-Hopping” AC-AC frequency conversion technology proposed on the basis of traditional technology has the advantages of no circulating current, no dead zone and output frequency that can be improved to close to the power frequency ...
Xu Zhengwang, Ke Kun, Jiang Guozhuang
doaj   +2 more sources

A novel dual-leg DC-DC converter for wide range DC-AC conversion

open access: yesAutomatika, 2022
This paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and DC–AC Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it has some drawbacks such as huge power loss, less conversion range ...
K. Suresh, E. Parimalasundar
doaj   +1 more source

Interindividual Differences in In Vitro Human Intestinal Microbial Conversion of 3-Acetyl-DON and 15-Acetyl-DON

open access: yesToxins, 2022
In order to evaluate the potential differences between 3-Ac-DON and 15-Ac-DON in the human intestinal microbial metabolism, human fecal samples were anaerobically cultured in vitro.
Fangfang Li   +3 more
doaj   +1 more source

Triac Based Novel Single Phase Step-Down Cycloconverter with Reduced THDs for Variable Speed Applications

open access: yesApplied Sciences, 2021
In variable speed applications, the cycloconverter-based AC to AC power conversion technique has gained more attention among researchers and academics than the traditional rectifier-inverter-based AC to AC power conversion process.
Tariqul Islam   +3 more
doaj   +1 more source

Conversion of Enantiomers during the Separation of Acetoin from Fermentation Broth

open access: yesFermentation, 2022
Acetoin (AC) is an important platform compound with two enantiomers (R)-AC and (S)-AC. Due to its unique spatial structure, optically pure AC has particularly high application in asymmetric synthesis.
Jiaxiang Zhang   +7 more
doaj   +1 more source

A New Class of Modular Multilevel Converter for Direct AC-AC Conversion

open access: yesIEEE Open Journal of Power Electronics, 2023
This article introduces the modular multilevel ac/ac converter (M2AC) which capitalizes on a new partial power processing mechanism (P3M) to achieve direct voltage transformation in single frequency power systems.
Anjana Wijesekera   +2 more
doaj   +1 more source

A new high-performance AC-to-AC conversion system [PDF]

open access: yesProceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics, 2002
A new high-performance variable-voltage variable-frequency (VVVF) AC-to-AC conversion system is proposed. This system consists of an AC/DC SCR rectifier, an LC DC-link, and a three-phase DC/AC PWM inverter. The rectifier is operated under cosine-mode feedback which linearizes the closed-loop control characteristics.
Lo, Yu-Kang   +3 more
openaire   +2 more sources

An Overview of Applications of the Modular Multilevel Matrix Converter

open access: yesEnergies, 2020
The modular multilevel matrix converter is a relatively new power converter topology suitable for high-power alternating current (AC)-to-AC applications.
Matias Diaz   +7 more
doaj   +1 more source

Three-Level Reduced Switch AC/DC/AC Power Conversion System for High Voltage Electric Vehicles [PDF]

open access: yesSustainability, 2022
Two of the main challenges of recent electric vehicles (EVs) are the charging time and high initial cost. To solve the problem associated with long charging time, the car manufacturers are moving from 400 V battery EV (BEV) to 800 V BEV, which enables the utilization of multi-level converters in EV applications.
Sadeghi, Zahra   +4 more
openaire   +3 more sources

New Class of Power Converter for Performing the Multiple Operations in a Single Converter: Universal Power Converter

open access: yesEnergies, 2022
Universal power converters (UPCs) have aroused significant attention in performing multiple operations in a single power converter. Furthermore, they contribute to economic operation and improved system performance.
Dhananjaya Mudadla   +4 more
doaj   +1 more source

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