Results 11 to 20 of about 86,791,480 (239)
High frequency inverter-transformer-cycloconverter system for DC to AC (3-phase) power conversion [PDF]
, 1991 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is concerned with a 3-phase multistage high frequency link DC to AC power conversion with a novel inverter-cycloconverter circuitry.
Karamat, Asghar
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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
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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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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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The influence of frequency of AC component on space charge behaviours in polyethylene under combined AC and DC electric fields [PDF]
, 2014 Combined ac and dc voltages may occur in high voltage power transmission system, which bring challenges to the dielectric materials. Generally speaking, space charge is well recognised under high voltage dc conditions but has received little attention ...
C. Zhou +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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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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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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