Results 11 to 20 of about 658 (194)
DC fault ride-through method for full-bridge MMC-based MTDC systems
The Journal of Engineering, 2019 The DC fault protection is one of the main issues in multi-terminal voltage source converter based high-voltage direct current (VSC–MTDC) transmission systems.
Yongjie Luo +4 more
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Chopperless Fault Ride-Through Control for DC Microgrids [PDF]
IEEE Transactions on Smart Grid, 2021 The dc microgrid should remain connected to the ac utility grid to support the grid stability during faults. However, the bidirectional power flow between the utility grid and the dc microgrid will cause either high-voltage or low-voltage faults at the dc bus.
Yang-hong Xia, Teng Long
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DC Fault Ride-Through Strategy Based on Overmodulation [PDF]
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The hybrid modular multilevel converter (hybrid MMC) can realize DC fault ride-through based on the capability of overmodulation and can continue to output reactive power to AC side during the fault, which can speed up the recovery of DC grid power after the fault is cleared.
M Cui, K J Li, Z J Liu, L Z Li
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DC fault ride through of multilevel converters [PDF]
2016 IEEE Energy Conversion Congress and Exposition (ECCE), 2016 Modular Multilevel Converters (MMC) can provide significant advantages for power transmission applications, however there are remaining challenges trading off DC fault response, losses and controllability. Alternative multilevel converter topologies using combinations of full bridge and half bridge submodules or series switches allow for competitive ...
Geraint Chaffey +4 more
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SiC‐based high‐gain DC–DC converters with fault ride‐through capability [PDF]
IET Power Electronics, 2020 This study presents active switched passive network‐based high‐gain DC–DC converters. The active switched network is formulated using two inductors, one capacitor and two diodes. Hence, the network is named as a 2L–C–2D network. Using ten components, an asymmetric high‐gain DC‐DC converter is proposed.
Gangavarapu Gurukumar +3 more
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工程科学与技术, 2023 Modular multilevel converter based high voltage direct current technology (MMC–MTDC) using overhead lines is an effective solution to solve the grid connected consumption of high proportion and long-distance renewable energy.
Yinfeng SUN +5 more
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The Journal of Engineering, 2019 To integrate bulk wind power, using modular multilevel converter (MMC) based DC grids is an effective solution to improve the flexibility and reliability of the power grid.
Shuai Cao +4 more
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Fault Ride-Through Power Electronic Topologies for Hybrid Energy Storage Systems
Energies, 2020 This work presents a fault ride-through control scheme for a non-isolated power topology used in a hybrid energy storage system designed for DC microgrids.
Ramy Georgious +4 more
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Power balancing and dc fault ride through in DC grids with dc hubs and wind farms [PDF]
IET Renewable Power Generation, 2015 Power balancing algorithm and dc fault ride through strategy in a DC grid with a DC hub are proposed in this article. Inductor‐capacitor‐inductor (LCL) dc hub is used in the DC grid to match different voltage levels and to prevent DC fault spreading.
Lin, Weixing, Jovcic, Dragan
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A DC Short-Circuit Fault Ride Through Strategy of MMC-HVDC Based on the Cascaded Star Converter
Energies, 2018 A modular multilevel converter based high voltage direct current (MMC-HVDC) with DC fault self-clearing is adopted to deal with the DC short-circuit fault.
Yingjie Wang +4 more
doaj +1 more source