Results 21 to 30 of about 3,706,735 (305)

Elimination of circulating current in parallel operation of single phase inverter using droop controller

open access: yesEngineering Science and Technology, an International Journal, 2022
This paper presents the control strategy for parallel operation of an inverter to eliminate DC & AC circulating current. This paper also analyses the cross-current between parallel connected inverter due to the difference in output voltage magnitudes
Ravi Kumar Gupta   +2 more
doaj   +1 more source

A component-reduced Zero-Voltage Switching three-level DC-DC converter [PDF]

open access: yesIECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society, 2016
The basic Zero-Voltage Switching (ZVS) three-level DC-DC converter has one clamping capacitor to realize the ZVS of the switches, and two clamping diodes to clamp the voltage of the clamping capacitor. In order to reduce the reverse recovery loss of the diode as well as its cost, this paper proposes to remove one of the clamping diodes in basic ZVS ...
Zian Qin   +3 more
openaire   +2 more sources

Emulation of a DC-DC converter for fault diagnostic [PDF]

open access: yes, 2023
openLa tesi riguarda l'emulazione di un convertitore DC-DC di tipo Buck, partendo dalla realizzazione di una simulazione software, basando le architetture proposte su reale componentistica commerciale. Nell'ottica generale del progetto l'emulazione verrà
CECCOLIN, CRISTIAN
core  

Adaptive Phasor Estimation Algorithm Based on a Least Squares Method

open access: yesEnergies, 2019
This paper proposes an adaptive phasor estimation algorithm based on a least square method that can suppress the adverse effect of an exponentially decreasing DC offset component in a phasor estimation process. The proposed algorithm is composed of three
Woo-Joong Kim   +2 more
doaj   +1 more source

Investigation of impact of DC component on breakdown characteristics for different electric fields under composite AC & DC voltage

open access: yesHigh Voltage, 2022
The valve side of the converter in the high‐voltage direct current is subjected to mixed voltages such as composite AC & DC voltage. In this study, the effects of the homogeneity of electric field on breakdown voltage were investigated for different ±DC ...
Mehmet Murat Ispirli   +4 more
doaj   +1 more source

An Overview of DC Component Generation, Detection and Suppression for Grid-Connected Converter Systems

open access: yesIEEE Access, 2019
Transformerless grid-connected distributed photovoltaic (PV) systems (TGCDPVs) has the merits of high efficiency, small size, and low cost, draws great interest in recent years.
Bo Long   +4 more
doaj   +1 more source

Hierarchical Network Management of Industrial DC-Microgrids

open access: yes, 2021
S.174-179The energy transition is a necessary component of the sustainable transformation of society. To achieve the Paris Climate Agreement´s goals, on one hand new, more energy-efficient approaches must be applied in industrial production. On the other
Timm Kuhlmann   +9 more
core   +1 more source

Influence of Aging on Creepage Discharge Characteristics of Oil-Paper Insulation Under AC-DC Combined Voltage

open access: yesIEEE Access, 2021
There is a relative lack of research on the development of creepage discharge in aged oil-paper insulation subjected to AC-DC combined voltage in converter transformers.
Jin Fubao, Zhou Yuanxiang, Liang Bin
doaj   +1 more source

Improvement of microstructure and mechanical properties of stainless steel TIG based wire arc additive manufacturing by using AC/DC mix current waveform

open access: yesJournal of Materials Research and Technology, 2023
In this work, a new current waveform, the AC/DC mix current waveform was employed to improve the microstructure and mechanical properties of 307Si stainless steel component during the TIG based wire arc additive manufacturing (TIG-WAAM).
Chao Chen   +3 more
doaj   +1 more source

Design and Analysis of a Novel High-Gain DC-DC Boost Converter with Low Component Count

open access: yes, 2021
In this paper, a novel high-gain DC-DC boost converter with reduced component count is proposed. The converter that is proposed in this paper provides high DC voltage gain, while keeping the overall component count significantly lower in comparison to ...
Hadeed A. Sher   +3 more
core   +1 more source

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