Results 21 to 30 of about 7,347,666 (303)

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   +1 more source

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

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

Control Strategy Based on Arm-Level Control for Output and Circulating Current of MMC in Stationary Reference Frame

open access: yesEnergies, 2021
This paper proposed a control method for output and circulating currents of modular multilevel converter (MMC). The output and circulating current are controlled with the help of arm currents, which contain DC, fundamental frequency, and double frequency
Waqar Uddin   +5 more
doaj   +1 more source

Multiple-Output DC-DC Converters with a Reduced Number of Active and Passive Components [PDF]

open access: yesJournal of Low Power Electronics and Applications, 2019
Multiple-output converters have been widely used where individual outputs are required. Compared with conventional separate converters, the advantage of multiple outputs is to have a lower number of active and passive components. In this paper, first, a pulse-width-modulation (PWM)-pulse-frequency-modulation (PFM) method is used for two-output ...
Mert Turhan   +4 more
openaire   +3 more sources

High density packaging of the passive components in an automotive DC/DC converter

open access: yes2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289), 2003
In this paper a very high power density DC/DC converter module for automotive applications is investigated. The 14 V/42 V converter is specified to operate at a power level of 2.1 kW with a water cooled heatsink at 85/spl deg/C. The design and implementation of very high density passive components is discussed.
Gerber, M. (author)   +3 more
openaire   +3 more sources

Research on the Key Parameters and Device Capacity Decoupling Analysis of Full Bridge MMC DC Ice-Melting Device

open access: yes南方能源建设, 2023
[Introduction] This article aims to study the issue of the melting capacity and reactive output capacity of the full bridge modular multi-level converter (MMC) type DC (Direct Current) melting ice device under different operating modes.
Xiaogang WU, Rui HE
doaj   +1 more source

Novel Design Methodology for DC-DC Converters Applying Metaheuristic Optimization for Inductance Selection

open access: yesApplied Sciences, 2020
Nowadays in modern industrial applications, where the power supply efficiency is more important than the output noise performance, DC-DC converters are widely used in order to fulfill the requirements.
Efrain Mendez   +8 more
doaj   +1 more source

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