Results 31 to 40 of about 676,166 (93)
Energies, 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
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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
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Frontiers in Energy Research, 2022 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
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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
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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
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Control of AC/DC Modular Multilevel Converter
Elektronika 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
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Investigating the Converter-Driven Stability of an Offshore HVDC System
Energies, 2021 Offshore wind farms are increasingly built in the North Sea and the number of HVDC systems transmitting the wind power to shore increases as well. To connect offshore wind farms to adjacent AC transmission systems, onshore and offshore modular multilevel
Matthias Quester +5 more
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Journal of Modern Power Systems and Clean Energy, 2017 This paper proposes a novel hybrid multilevel converter with DC fault-blocking capability, i.e., the neutral-point clamped hybrid multilevel converter (NHMC).
Xinyu YU +5 more
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Energy Reports, 2023 This paper proposes a novel flexible uninterrupted neutral section passing system based on four-leg V-clamp multilevel converter (VMC). It can better solve a series of problems such as overvoltage, overcurrent and speed loss caused by the interruptible ...
Jiawei Guo +4 more
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Energies, 2022 In this paper, the traveling wave protection issue of a hybrid high-voltage direct-current transmission line based on the line-commutated converter and modular multilevel converter is investigated.
Wei Zhang, Dong Wang
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