Results 11 to 20 of about 114,896 (261)
A Novel Three-Level Voltage Source Converter for AC–DC–AC Conversion [PDF]
Energies, 2018 This paper presents a novel three-level voltage source converter for AC–DC–AC conversion. The proposed converter based on H-bridge structure is studied in detail. The control method with traditional double-closed-loop control strategy and voltage balancing algorithm is applied to the rectifier side. Correspondingly, a simplified modulation algorithm is
Zongbin Ye +5 more
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IEEE Access, 2020 DC microgrids (DC-MGs) are recognized as an efficient alternative for common AC-MGs. DC-MGs need fewer power electronic converters since most of distributed generation (DG) units and electronic loads operate with DC voltage.
Javad Khodabakhsh +2 more
doaj +1 more source
Outcomes of an Early Laparoscopic Cholecystectomy in Acute Cholecystitis, Grades I and II
Siriraj Medical Journal, 2022 Objective: According to the accumulated benefits of laparoscopic cholecystectomy (LC) in acute cholecystitis (AC), early LC is becoming a standard management for selected patients. While patients with mild AC usually gain the advantages of this approach,
Napakadol Noppakunsomboon +3 more
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Energy Reports, 2020 In this paper, we present an inductor-less direct ac–ac converter with improved nesting-type topology. Unlike existing direct ac–ac converters, the proposed ac–ac converter combines a voltage equalizer and a switched-capacitor (SC) simple converter ...
Kei Eguchi +4 more
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Medium-Voltage Cascaded Sequential Topology for Large-Scale PV Plants
IEEE Access, 2021 Photovoltaic (PV) conversion systems are in continuous development due to their increasingly competitive prices. The traditional configuration of large-scale PV plants is based on high-power central inverters, which have reduced their cost by increasing ...
David Lumbreras +5 more
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Frontiers in Bioengineering and Biotechnology, 2022 Humic substances (HSs) occupy 80% of organic matter in soil and have been widely applied for soil remediation agents, potential battery materials, and adsorbents.
Zhong-Ting Hu +10 more
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Green Energy & Environment, 2022 A series of boron-doped (B-doped) catalysts with dissimilar mass ratios of boric acid and activated carbon (AC) were prepared by an impregnation method for acetylene acetoxylation.
Fulong Zhu, Mingyuan Zhu, Lihua Kang
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A New Design Hybrid Cascaded Multilevel Inverter for AC-DC-AC Conversion
International Journal of Innovative Technology and Exploring Engineering, 2020 Single-Phase AC-DC-AC converters are employed in vast of applications such as UPS Systems, Motor Drives, Yaw Drives, Traction and Micro Grids. This paper introduces an incipient topology for multilevel inverter based Single-Phase AC-DC-AC converter for different types of loads.
P. Narasimman* +2 more
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IEEE Access, 2020 Multiple uncertainties from renewable energy sources, power loads and bidirectional AC/DC converter have brought great challenges to the energy management of AC/DC hybrid microgrid.
Bin Wei +5 more
doaj +1 more source
Energy Conversion and Management: X, 2021 Gasification is one of the most efficient thermo-chemical conversion processes for transforming waste tyres into syngas and high-valued solid carbon products such as activated carbon (AC).
Lanrewaju I. Fajimi +2 more
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