Modular multilevel converter losses model for HVdc applications [PDF]
, 2017 Multi-terminal high voltage dc (HVdc) grids can eventually became a feasible solution to transport energy to remote and/ or distant areas and its exploitation depend, among other things, on the performance of the converter terminals.
Antonio Ferreira, Abel +1 more
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Passive Voltage Balancing In Modular Multilevel Converter During Precharge: Analysis And Design
Eletrônica de Potência, 2020 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
doaj +1 more source
A hybrid modular multilevel converter with novel three-level cells for DC fault blocking capability [PDF]
, 2015 A novel hybrid, modular multilevel converter is presented that utilizes a combination of half-bridge and novel three-level cells where the three-level cells utilize a clamp circuit which, under dc side faults, is capable of blocking fault current thereby
Fletcher, John E. +4 more
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Arm current reversal‐based modular multilevel DC‐DC converter
IET Power Electronics, 2021 Nowadays, most of the converters used in high‐power high‐voltage (HV) applications are the conventional modular multilevel converters (MMC). However, in the case of DC‐DC conversion, an imbalance of the capacitor voltages occurs and the conventional MMC ...
Yousef Nazih +2 more
doaj +1 more source
Active power losses distribution methods for the modular multilevel converter [PDF]
, 2016 Modular Converters such as the MMC have become the new standard in VSC-HVDC applications. Their modularity has brought many industrial advantages but also increased the complexity of their operation.
Merlin, MMC, Mitcheson, PD
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Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies [PDF]
, 2020 Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, the modeling of MMCs is paramount
Forner, Jaume, Vidal-Albalate, Ricardo
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Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]
, 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
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Alexandria Engineering Journal, 2023 The integration of renewable energy sources in Medium-/High-voltage DC grids has called up continuous research to develop DC-DC conversion systems. This paper presents a hybrid modular multilevel DC-DC converter topology which successfully overcomes the ...
Mai Diab +2 more
doaj +1 more source
Control of a hybrid modular multilevel converter during grid voltage unbalance [PDF]
, 2015 The recently proposed parallel hybrid modular multilevel converter is considered to be a low loss, low component count converter with soft switching capability of the ‘main’ bridge.
Amankwah, Emmanuel K. +3 more
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The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability
, 2013 This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Critchley, R +6 more
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