Results 21 to 30 of about 38,304 (259)

Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]

open access: yes, 2018
Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P.   +4 more
core   +1 more source

A Novel Cascaded Multilevel Converter Topology Based on Three-Phase Cells—CHB-SDC

open access: yesEnergies, 2020
This paper proposes a new cascaded multilevel converter topology based on three-phase H bridge cells with a common DC-link structure. The proposed multilevel converter topology main advantages, compared with literature renowned multilevel converters ...
Renner Sartório Camargo   +4 more
doaj   +1 more source

Modified half-bridge modular multilevel converter for HVDC systems with DC fault ride-through capability [PDF]

open access: yes, 2014
One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed.
Aboushady, A.A., Ahmed, K.H.
core   +2 more sources

A Hybrid Modular Multilevel Converter with Partial Embedded Energy Storage

open access: yesEnergies, 2016
Modular and cascaded multilevel converters provide a functional solution for the integration of energy storage systems (ESSs). This paper develops a hybrid multilevel converter based on the modular multilevel converter (MMC) that can be functionally ...
Georgios Konstantinou   +3 more
doaj   +1 more source

Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators

open access: yesApplied Sciences, 2020
In recent years, modular multilevel converters (MMC) are becoming popular in the distribution and transmission of electrical systems. The multilevel converter suffers from circulating current within the converter that increases the conduction loss of ...
Ahmed A. Zaki Diab   +4 more
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

A novel space-vector algorithm for multilevel converters based on geometrical considerations using a new sequence control technique [PDF]

open access: yes, 2004
his paper presents a fast and simple space vector modulation algorithm for voltage source multilevel converters for calculating the switching times and the space vectors using simple geometrical considerations.
Carrasco Solís, Juan Manuel   +4 more
core   +1 more source

Control of AC/DC Modular Multilevel Converter

open access: yesElektronika ir Elektrotechnika, 2018
In recent years, a special attention is paid to grid connected multilevel converters. These converters have specific use in industry in a high power, medium-voltage and high-voltage applications. This paper presents new control algorithm for single-phase
Vojtech Blahnik   +3 more
doaj   +1 more source

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

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

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