Results 31 to 40 of about 1,404 (245)

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

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

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

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

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

Pre-charging control strategy of modular multilevel inverter

open access: yesGong-kuang zidonghua, 2019
According to operation characteristics of mine hoist, a back-to-back modular multilevel converter composed of modular multilevel rectifier and modular multilevel inverter was used for control of mine hoist.
ZHU Qixian   +3 more
doaj   +1 more source

Analysis of Asymmetric Hybrid Modular Multilevel Topology for Medium-Voltage Front-End Converter Applications

open access: yesEnergies, 2023
Modular multilevel converters (MMCs) have been conceived as an alternative in front-end converter applications to enhance the converter system’s reliability, minimize total harmonic distortion, and improve power quality.
Muhammad Ali   +4 more
doaj   +1 more source

Mixed cells modular multilevel converter [PDF]

open access: yes2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE), 2014
This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability. It has been found that the mixed MMC is resilient to both AC and DC network faults, which are necessary for next generations of highly
Adam, G. P., Ahmed, K.H., Williams, B.W.
openaire   +2 more sources

Research of influence of dead time by carrier phase shifted modulation on modular multilevel converter

open access: yesGong-kuang zidonghua, 2013
The paper analyzed influence of dead time on single sub-module of modular multilevel converter and reached conclusions that the sub-module will produce positive dead voltage from inserted state to cut-off state when arm current is positive and negative ...
SONG Ping-gang, LI Yun-feng, WANG Li-na
doaj   +1 more source

Control of an Offshore Wind Farm Considering Grid-Connected and Stand-Alone Operation of a High-Voltage Direct Current Transmission System Based on Multilevel Modular Converters

open access: yesEnergies, 2023
This work presents a control strategy for integrating an offshore wind farm into the onshore electrical grid using a high-voltage dc transmission system based on modular multilevel converters.
Matheus Sene Paulo   +3 more
doaj   +1 more source

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