Results 11 to 20 of about 22,407 (307)

Novel topology of ac–dc converter using direct power conversion

open access: yesIET Power Electronics, 2012
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
openaire   +3 more sources

Hybrid AC and DC power distribution

open access: yesCeylon Journal of Science, 2017
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

open access: yesCSEE Journal of Power and Energy Systems
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]

open access: yesIEEE Transactions on Very Large Scale Integration (VLSI) Systems, 2018
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
openaire   +4 more sources

A new modulation strategy on isolated battery charger with wide input and output voltage range

open access: yesIET Power Electronics, 2023
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

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 Modular Multilevel DC-DC Converter With Auxiliary Inductor Circuits for Cell Voltage Balancing and Fast Output Response

open access: yesIEEE Open Journal of Power Electronics, 2022
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
doaj   +1 more source

Voltage source control strategy of three-port modular multilevel converter

open access: yesEnergy Reports, 2023
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
doaj   +1 more source

A Common DC-Bus-Configured Traction Motor Emulator Using a Virtually Isolated Three-Phase AC-DC Bidirectional Converter

open access: yesIEEE Access, 2021
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
doaj   +1 more source

A Comprehensive Loss Model and Comparison of AC and DC Boost Converters

open access: yesEnergies, 2021
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
doaj   +1 more source

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