Results 21 to 30 of about 14,714 (276)

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

An Overview of Modelling Techniques and Control Strategies for Modular Multilevel Matrix Converters

open access: yesEnergies, 2020
The Modular Multilevel Matrix Converter is a relatively new power converter topology appropriate for high-power Alternating Current (AC) to AC purposes. Several publications in the literature have highlighted the converter capabilities such as modularity,
Matias Diaz   +7 more
doaj   +1 more source

Research on fault characteristic of modular multilevel converter

open access: yesEnergy Reports, 2022
Along with China proposes to build a new energy power system, various DC transmission technologies have been extensively studied. As the most serious fault type of the DC transmission system, permanent DC bipolar short-circuited fault is easy to cause ...
Changwu Hou   +3 more
doaj   +1 more source

Derivation and Comparison of Modular Multilevel Converter Topologies with DC Fault Ride-through Capability

open access: yesZhongguo dianli, 2021
The DC fault has become one of the most serious obstacles for the development of DC system because of its wide impact range and large fault current.
Shiyuan FAN   +5 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

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

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]

open access: yes, 2018
Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A.   +3 more
core   +2 more sources

Design Considerations for a Voltage-Boosting DC-AC Modular Multilevel Converter [PDF]

open access: yes, 2015
The Modular Multilevel Converter (M2C) is a relatively recent addition to the family of multilevel power converters. This paper describes the topology, dynamic phasor modeling, and operation of a voltage boosting DC-AC Modular Multilevel Converter.
Ramírez Prieto, Dionisio   +3 more
core   +1 more source

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

Modular Multilevel Converter for a Linear Generator for Wave Energy Converter

open access: yesEnergies, 2022
In this paper we propose a modular multilevel converter for a linear generator for a wave energy converter. The coils of this generator are individually controlled to improve energy harvesting performance. This topology involves two stages.
Henry M. Zapata, Marcelo A. Pérez
doaj   +1 more source

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