Results 41 to 50 of about 378,207 (280)

Analysis and Implementation of High-Performance DC-DC Step-Up Converter for Multilevel Boost Structure

open access: yesFrontiers in Energy Research, 2019
The conventional DC-DC converters such as SEPIC, boost converter, etc. produces large voltage ripples in multilevel converter systems. For that reason, in this paper, a new DC-DC converter topology is proposed, and the performance is analyzed.
M. Premkumar, C. Kumar, R. Sowmya
doaj   +1 more source

A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control [PDF]

open access: yes, 2005
A transmission system based on voltage-source three-level flying capacitor (FC) multilevel converters with selective harmonic elimination pulse-width modulation (SHE-PWM) control is presented in this paper.
Lie Xu   +3 more
core   +1 more source

Control of Cascaded Multilevel Converter for Wave Energy Applications

open access: yesEnergies, 2022
This paper proposes a control scheme for a wave energy conversion system based on a linear generator and a cascaded multilevel converter. The mechanical conversion system is composed of a buoy connected directly to a linear generator. The windings of the
Henry M. Zapata   +2 more
doaj   +1 more source

Digitally-implemented naturally sampled PWM suitable for multilevel converter control [PDF]

open access: yes, 2003
For dynamic closed loop control of a multilevel converter with a low pulse number (ratio of switching frequency to synthesized fundamental), natural sampled pulse-width modulation (PWM) is the best form of modulation.
Walker, Geoffrey R.
core   +1 more source

A three-phase multilevel converter with multi-winding medium-frequency transformer

open access: yesGong-kuang zidonghua, 2014
In view of problems of unbalanced capacitor voltage, or big volume and high cost of phase-shifting transformer which provides DC power existed in traditional multilevel converter, the paper proposed a three-phase multilevel converter based on cascaded H ...
ZHANG Yulei, ZHANG Yuxiang, GUO Mi
doaj   +1 more source

Analysis and Investigation of Hybrid DC–DC Non-Isolated and Non-Inverting Nx Interleaved Multilevel Boost Converter (Nx-IMBC) for High Voltage Step-Up Applications: Hardware Implementation

open access: yesIEEE Access, 2020
In significant cases, the generated voltage needs to be step-up with high conversion ratio by using the DC-DC converter as per the requirement of the load. The drawbacks of traditional boost converter are it required high rating semiconductor devices and
Mahajan Sagar Bhaskar   +5 more
doaj   +1 more source

Neutral-point-clamped hybrid multilevel converter with DC fault blocking capability for medium-voltage DC transmission

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
This paper proposes a novel hybrid multilevel converter with DC fault-blocking capability, i.e., the neutral-point clamped hybrid multilevel converter (NHMC).
Xinyu YU   +5 more
doaj   +1 more source

Modeling and Experimental Evaluation of Z-Source Modular Multilevel Converter Using Reduced Inserted Cells Technique

open access: yesIEEE Access, 2021
The integration of a Z-source network with a modular multilevel converter (MMC) to provide voltage step-up function is proposed in this paper. The proposed Z-source modular multilevel converter (ZS-MMC) uses a Z-source network connected between the DC ...
Fatma A. Khera   +2 more
doaj   +1 more source

Control of a Modular Multilevel Matrix Converter for Unified Power Flow Controller Applications

open access: yesEnergies, 2020
The modular multilevel matrix converter has been proposed as a suitable option for high power applications such as flexible AC transmission systems.
Alberto Duran   +5 more
doaj   +1 more source

Impact of converter interface type on the protection requirements for DC aircraft power systems [PDF]

open access: yes, 2012
The utilization of converter interfaces has the potential to significantly alter the protection system design requirements in future aircraft platforms.
Burt, Graeme   +3 more
core   +4 more sources

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