Results 11 to 20 of about 22,407 (307)
Novel topology of ac–dc converter using direct power conversion
This study proposes a novel topology of the ac-dc converter using direct power conversion that has a simple structure and achieves high efficiency. The proposed converter is derived by integrating the step-down ac chopper and the output-voltage doubler. The proposed converter provides direct ac-dc conversion and isolated dc output voltage without using
Cho, YW, Kwon, BH
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Hybrid AC and DC power distribution
Interest in the use of DC for medium and low voltage distribution circuits is growing as a means of reducing the multiple power conversion stages associated with connecting renewable energy sources and DC powered consumer electronic devices to the ...
S. Jayawardena +2 more
doaj +3 more sources
Unified Iterative Algorithm for Power Flow of AC/DC System with Multi-Type DC Links
As an emerging trend in power grid development, the AC/DC hybrid power grid presents the characteristics of multi-type DC links and large-scale AC/DC interconnection.
Zhiqiang Song +5 more
doaj +2 more sources
A Single-Stage Direct-Conversion AC–DC Converter for Inductively Powered Application [PDF]
An innovative single-stage ac–dc converter for low power, low frequency skin depth wireless power transfer is presented. The power conversion efficiency (PCE) of a wireless power receiver is limited by the cascaded two-stage design, which constitutes a rectifier and a voltage regulator.
Qiong Wei Low, Mi Zhou, Liter Siek
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A new modulation strategy on isolated battery charger with wide input and output voltage range
A new wide voltage operation range isolated battery charger, which is composed of an asymmetric T‐type AC–DC power rectifier and a modified re‐configurable half bridge DC–DC power converter, is proposed in this paper.
Hurng‐Liahng Jou +5 more
doaj +1 more source
A New Class of Modular Multilevel Converter for Direct AC-AC Conversion
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
Battery-equipped apparatuses, such as electric vehicles (EVs), renewable energy generations, and mobile devices, are widely used and still being developed. For the design and evaluation of these devices, there is a growing demand for dc power supplies to
Hidemine Obara +4 more
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Voltage source control strategy of three-port modular multilevel converter
AC & DC hybrid power grid is an important trend of the future renewable energy based new-type power system. Power electronic transformer with multi AC and DC ports is the key device for renewable energy conversion and transmission.
Yang Chen +6 more
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An industrial drive testing, with a ‘real-machine’ can pave way, for some serious issues to test-bench and motor. A slight disturbance in control logic amid testing, can damage the physical machine or drive.
Arvind H. Kadam, Sheldon S. Williamson
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A Comprehensive Loss Model and Comparison of AC and DC Boost Converters
DC microgrids have become a prevalent topic in research in part due to the expected superior efficiency of DC/DC converters compared to their AC/DC counterparts.
Daniel L. Gerber +6 more
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