Results 21 to 30 of about 363,421 (243)

Multiple low frequency dual reference PWM control of a grid connected photovoltaic three phase NPC inverter with DC/DC boost converter [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2014
In recent years, power demand of industrial applications has increased significantly reaching some megawatts. The use of multilevel converters for applications of medium and high powers is proposed as a solution to drawback semiconductor ...
Mechouma Rabiaa, Azoui Boubekeur
doaj   +1 more source

Study of start-up decoupling controller for modular multilevel converter [PDF]

open access: yesE3S Web of Conferences, 2021
Modular multilevel converters are widely used in power systems because of their significant advantages. In this paper, a dynamic mathematical model is established by analyzing the topology, operating principle and switching function of the modular ...
Zhang Xinlin   +3 more
doaj   +1 more source

Inverse decoupling internal model control for multilevel buck converter with constant power load

open access: yesEnergy Reports, 2023
Multilevel buck converter has attracted much attention in power electronic systems for their advantages of low switching voltage stress, small filter size and easy capacity expansion.
Jiarong Wu   +5 more
doaj   +1 more source

Design and implementation of isolated multilevel inverter with lower number of circuit devices

open access: yesIET Power Electronics, 2023
Galvanic isolation is an integral part for the grid connected solar PV system. With the advancement of multilevel inverters for the grid‐connected application, the multilevel inverters having isolation are not sufficiently discussed in the literature ...
Ahmed Abbas   +3 more
doaj   +1 more source

Analysis of a symmetrical multilevel DC-DC boost converter with ripple reduction structure for solar PV systems

open access: yesAlexandria Engineering Journal, 2022
A symmetrical multilevel dc-dc boost converter with ripple reduction structure for solar PV Systems is analyzed in this paper. The converter is structured by differentially connecting two multilevel boost converters.
Ahmed Allehyani
doaj   +1 more source

Research on flexible uninterrupted neutral section passing system based on V-clamp multilevel converter

open access: yesEnergy Reports, 2023
This paper proposes a novel flexible uninterrupted neutral section passing system based on four-leg V-clamp multilevel converter (VMC). It can better solve a series of problems such as overvoltage, overcurrent and speed loss caused by the interruptible ...
Jiawei Guo   +4 more
doaj   +1 more source

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

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

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

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