Results 21 to 30 of about 1,469 (243)
Cyber-Attacks in Modular Multilevel Converters
Distributed control of modular multilevel converter (MMC) submodules offers several potential benefits such as flexibility and modularity. In this approach, low-level control tasks, such as capacitor voltage balancing, can be distributed amongst controllers placed in the SMs.
Claudio Burgos-Mellado +6 more
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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
Optimal Design and Control of MMC STATCOM for Improving Power Quality Indicators
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
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Distributed Control for a Modular Multilevel Converter [PDF]
Conventional centralized control strategies may reduce the flexibility and expandability of a modular multilevel converter (MMC) system. To tackle this issue, this paper proposes a distributed control architecture that is capable of assigning certain control tasks to distributed local controllers and improves the modularity of an MMC system.
Shunfeng Yang, Yi Tang, Peng Wang
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Pre-charging control strategy of modular multilevel inverter
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
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
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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
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
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Passive Voltage Balancing In Modular Multilevel Converter During Precharge: Analysis And Design
The modular multilevel converter is composed of many equal submodules connected in series, each having to ideally withstand the same voltage and current stresses. The resulting configuration when each SM capacitor feeds its own auxiliary power supply is
Gean Jacques Maia de Sousa +3 more
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This study presents a strategy to reduce the capacitance of the submodule (SM) capacitor of a modular multilevel converter-based medium-voltage wind power converter. The design of the SM capacitor of the modular multilevel converter (MMC) should consider
Jianhang Qian +4 more
doaj +1 more source

