Results 11 to 20 of about 643 (186)
Frontiers in Energy Research, 2021 Aiming at the problems of DC fault isolation and power surplus in the HVDC system with large-scale wind farm (WF) integration after single-pole grounding fault, this article designs a modified current transfer modular multilevel converter (M-CT-MMC ...
Bo Zhu +5 more
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A Novel Control Strategy for AC Fault Ride Through in Multi-terminal DC System
发电技术, 2022 This paper proposed a novel control strategy-coordinated DC voltage control (DCVC)-to enhance the AC fault ride through capability of multi-terminal high voltage direct current (HVDC) system.
YANG Zhou +3 more
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Fault ride through of DC solid state transformer in medium voltage DC systems
IET Conference Proceedings, 2023 Medium voltage direct current is emerging in distribution and collection networks and the network codes are under construction. This article introduces the MVDC network fault ride-through (FRT) requirement and the response of a DC solid state transformer is analyzed.
Le Métayer, Pierre +3 more
openaire +2 more sources
Energies, 2022 In the event of a DC side fault in modular multilevel converters (MMCs), the fault current contributions are initially made by submodule (SM) capacitor discharge, which occurs before the fault is detected, followed by the AC side contribution to the DC ...
Munif Nazmus Sakib +2 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
openaire +1 more source
Fault ride‐through strategy for hybrid HVDC with cascaded multi‐infeed MMC inverters
Electronics Letters, 2021 The hybrid HVDC with cascaded multi‐infeed MMC inverters suffers from the fragile characteristic of its MMC inverters and is easy to be over current and over voltage.
Jingbo Zhao +4 more
doaj +1 more source
IEEE Access, 2023 The grid-side transient fault ride-through problem seriously affects the stable operation of the grid-connected wind turbine. At present, the grid-connected adaptability analysis of DC wind turbine (DCWT) under the grid-side transient faults is still a ...
Zhanlong Li +3 more
doaj +1 more source
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
openaire +2 more sources
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
doaj
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
doaj +1 more source